Organophosphorus nerve agents pose grave risks to human health and ecology, creating an urgent demand for high-performance detection and remediation techniques. This work fabricates an all-in-one sensing-degradation platform with UiO-67@AuNCs/MnO2 nanozyme and AChE biorecognition element, where MnO2 acts as a reversible switch to regulate fluorescence and oxidase-like activity. The system delivers inverse dual optical signals for self-verification, greatly boosting detection precision. Tested on real sarin and soman, its colorimetric and fluorescent LODs reach 10-3-10-4 ng·mL-1, 2-7 orders of magnitude lower than most reported sensors. Benefiting from UiO-67's porous structure, the composite adsorbs nerve agents and achieves over 80% sarin and 70% soman degradation within 6 h at room temperature without extra energy or reagents, eliminating secondary contamination risks. Capable of universal screening of organophosphorus toxins, this multifunctional platform holds great value for military chemical defense and civilian environmental monitoring, offering a simple integrated strategy for simultaneous pollutant detection and detoxification.

Efficient heat dissipation is crucial for the performance and longevity of compact electronic devices, which face significant thermal management challenges. This study introduces a reusable and self-hygroscopic heat dissipation hydrogel using poly(vinyl alcohol) (PVA) and soluble acrylic resins (AR) as the matrix, lithium chloride (LiCl) as the hygroscopic component, and borax and aluminum ions (Al3+) as cross-linking agents. The dynamic covalent cross-linking and physical cross-linking provide enhanced recyclability and mechanical strength, allowing the hydrogel to maintain excellent performance through repeated heat dissipation cycles. The influence of Li+ concentration on the hydrogel's hygroscopic properties was evaluated, revealing that at 10.0 mol/L Li+, nearly 100% of the water was reabsorbed within 6 h at 20.0 degrees C. The hydrogel demonstrated superior self-hygroscopic properties and maintained long-term functionality across multiple cycles. The hydrogel effectively reduced surface temperatures of heat sources by up to 20 degrees C compared with commercial heat fins. The reversible cross-linking mechanism enables the hydrogel to undergo bond breakage and reformation, facilitating recyclability and extending its practical lifespan. This innovative hydrogel presents a promising solution for advancing thermal management in electronic devices and contributes to global sustainable development.

In radiotherapy, the dose build-up effect significantly influences treatment efficacy, whereas traditional tissue compensators often underperform. Hydrogels, resembling biological soft tissues, offer promising alternatives. In this study, self-crosslinking hydrogels were successfully synthesized through meticulous control of dimethylaminoethyl methacrylate (DMAEMA)-initiated active site formation using a potassium persulfate (KPS)/DMAEMA redox initiation system, with acrylamide (AM) as the primary monomer and acetic acid (HAc) as tertiary amine inhibitor. Results of swelling test, polymerization exothermic detection, and morphological analysis indicate that HAc effectively inhibits the DMAEMA-induced active center generation, thereby promoting bimolecular termination to form a chemically crosslinked hydrogel. These hydrogels, characterized by chemical crosslinking, hydrogen bonding crosslinking, and molecular chain entanglement, exhibit excellent mechanical properties. Furthermore, the electrostatic interactions and hydrogen bonding further grant exceptional adhesion strength between substrate and hydrogels. Notably, the self-crosslinking method without any crosslinkers added ensures the hydrogel's biocompatibility. Additionally, the synergistic effect of HAc and in-situ generated quaternary ammonium groups (from DMAEMA protonation) imparts the hydrogels with remarkable antibacterial activity against Escherichia coli and Staphylococcus aureus. The simulant dose-compensation test illustrates the efficacy of hydrogels as tissue compensators. This study advances self-crosslinking hydrogel design principles and pioneers the potential application of hydrogel-based tissue compensators in radiotherapy.

Integrating metal-organic frameworks (MOFs) into polymerized high internal phase emulsions (PolyHIPEs) significantly increases the specific surface area and enhances functionalities such as adsorption and catalytic capabilities. However, most existing MOF@PolyHIPE composites face challenges, such as poor water resistance, low mechanical strength, and complex synthesis processes. Herein, we present a one-step water-in-oil (W/O) high internal phase emulsion (HIPE) strategy to fabricate hierarchical porous ZnO@ZIF-8@PolyHIPE composites with tunable micro/macropores and uniformly distributed ZIF-8. A molecularly engineered ambient-curable amphiphilic copolymer containing acetoacetoxy groups enables ambient-condition dual cross-linking (chemical/ionic), achieving rapid curing and robust mechanical properties with a Young's modulus of 2.21 MPa at a low density of 95 mg/cm3. ZnO nanoparticles play three synergistic roles: stabilizing HIPE interfaces, cross-linking copolymers to enhance structural integrity, and acting as zinc sources for in situ ZIF-8 growth. The optimized composite exhibits a large BET surface area of 229.8 m2/g compared to those of ZnO@ZIF-8@PolyHIPE composites, exceptional iodine adsorption capacity, and scalable processability. This work provides a versatile platform for designing hierarchical multifunctional materials for adsorption, catalysis, and separation applications.

The emulsion polymerization of high-alcohol acrylates with extreme hydrophobicity while achieving high monomer conversion has been posed significant challenges. In this study, the emulsion copolymerization of super-hydrophobic stearyl acrylate (SA) with an 18-carbon alkyl group has been successfully conducted by a novel “ferrying” strategy. Specifically, an emulsifier with a 23-carbon alkyl group (hydrophobic) and a 20-oxethyl group (hydrophilic) simultaneously was designed to facilitate the efficient transfer of SA through hydrophobic interaction from monomer drops to micelles, leading to a remarkable improvement in monomer conversion. The self-migration of the 18-carbon alkyl groups grafted onto the copolymer chains, which moved from the inner matrix to the coating surface, resulted in the creation of the waterborne coating with low surface tension during the film formation process. Moreover, it was confirmed that the self-crystallization of the 18-carbon alkyl groups caused the coating to exhibit a self-matting effect with low glossiness. Using an industrial formula, the effects of different types and dosages of emulsifiers, as well as the dosage of SA, on the total monomer conversion, SA conversion, and coating properties were extensively investigated. This work not only broadens the monomer range for emulsion polymerization to highly hydrophobic species, but also provides a variety of industrial waterborne products with low surface tension and low glossiness derived from high-alcohol acrylates, contributing to the development of environmentally friendly chemical industries.

High internal phase emulsion (HIPE) presents an attractive approach for fabricating porous materials, however, most of which require external energy input (e.g., heat, UV) to solidify soft colloid templates into robust polymeric skeleton structures. Herein, a ketone-group-containing ambient-condition curable (ACC) copolymer was prepared in order to create a polyHIPE system based on the keto-hydrazide chemistry. Tailored design is made possible by the adaptable construction feature of ACC copolymer, and its amphiphilic properties significantly expand the selection of water-in-oil (W/O) HIPE stabilizers. By utilizing the unmodified ZnO nanoparticles as stabilizers and anti-shrinkage agents based on ionic crosslinking, and employing the ACC copolymer solution as the continuous phase, we streamlined the stabilization modification step, removed the need for purifying polyHIPE, and established a rapid, straightforward, and cost-effective polyHIPE preparation protocol. Results demonstrated that the obtained polyHIPEs exhibit ideal pore structures, with densities as low as 0.046g/cm³ and porosities exceeding 90%, exhibiting remarkable stability, 3D printing feasibility, and the capacity for crosslinking under ambient circumstances. By using Soxhlet extraction, the gel content of polyHIPEs was found to be 65.5%, and mechanical characteristics were assessed up to 1.9MPa. The technique’s successful 20-fold scaled-up HIPE production further confirms it as a promising and straightforward approach for large-scale, energy-saving, and environmentally friendly manufacture of self-curable HIPEs.

Radiophotothermal therapy is a promising treatment for superficial tumors. Traditional radiotherapy requires tissue boluses on the patient's skin to increase therapeutic effectiveness due to the dose-buildup effect of high-energy radiation. However, combining radiotherapy with photothermal therapy leads to uncertainties as the low-penetration near-infrared light dose is reduced after penetrating the bolus. To enhance precision and effectiveness, this study introduces a novel bolus made of AuNPs@poly(AM-THMA-DMAEMA) composite hydrogel. This hydrogel is prepared through a one-pot method involving the reduction of trihydrate chloroauric acid (HAuCl43H(2)O) and copolymerization of acrylamide (AM) and N-[Tris(hydroxymethyl)methyl]acrylamide (THMA) in a redox system with dimethylaminoethyl methacrylate (DMAEMA) and potassium persulfate (KPS). The gold nanoparticles (AuNPs) improve the mechanical strength (tensile strength of 320.84 kPa, elongation at break of 830%) and antibacterial properties (>99% against Staphylococcus aureus). The local surface plasmon resonance (LSPR) effect of AuNPs enables the hydrogel to absorb near-infrared light for precise monitoring of the infrared radiation dose. The hydrogel's biocompatibility is enhanced by the absence of additional crosslinking agents, and its excellent surface adhesion strength is due to numerous hydrogen bonds and electrostatic interactions. This study offers new possibilities for nanoparticle composite hydrogels as tissue boluses, achieving high precision and efficiency in radiophotothermal therapy.

It has been challenging to create a waterborne non-fluorinated anti-smudge coating product that is curable under ambient conditions (at room temperature and humidity) and performs superior repellence to both amphiphilic and lipophilic contaminants. Herein this work, this issue was addressed by introducing an aziridine (AZ) crosslinker into bio-based waterborne polyurethane grafted with 2 wt% poly(dimethylsiloxane) (WPU-g-PDMS) as an eco-friendly dewetting agent. The modified WPU-g-PDMS/AZ system achieves complete curing at room temperature, which enables the coating to have excellent anti-smudge and anti-corrosion properties. The results indicate the tri-functional AZ component could effectively cross-link with carboxyl groups present in WPU-gPDMS under ambient conditions, preventing pollutants from adhering to the hydrophilic groups on the surface of the coating and significantly enhancing its anti-smudge performance. A wide range of contaminant liquids could slide off the coated surface without leaving any residues, and dust particles can be easily removed with a simple water wash, demonstrating its self-cleaning capability. Moreover, the anti-smudge characteristics of the coating could autonomously regenerate in instances of chemical corrosion or physical wear, highlighting its self-healing attributes. This study showcases the potential of utilizing bio-based materials and non-fluorinated dewetting agents to develop sustainable utility in both architectural and industrial applications.

Gold nanoparticles(AuNPs)with high surface energy are easy to agglomerate in water,which restricts their applications. In this study,poly( N-isopropyl acrylamide)(PNIPAM) microgel and AuNPs were combined by electrostatic interaction through physical blending method inorder to cause negative citrate-stabilized AuNPs absorbed on the surface of positive PNIPAM microgels. The prepared surface-covered AuNPs@PNIPAM particles not only have excellent dispersion stability,but also exhibit a temperature-dependent colorimetric property,showing a reversible change of "red -> purple -> red" during the temperature change of 25 degrees C -> 50 degrees C -> 25 degrees C ->. In addition,the p-nitrophenol(4-NP)reduction reaction was used as the simulated catalytic reaction to examine the catalytic perfor. mance of AuNPs@PNIPAM. The results showed that the catalytic performance of AuNPs@PNIPAM first decreased and then increased with temperature. Compared to similar materials reported in the literature,the AuNPs@PNIPAM showed both temperature-colorimetric properties and catalytic performance.

Stimuli-responsive hybrid nanoparticles used for controllable catalysis have been attracting increasing attention. This study aims to prepare hybrid microgels with excellent temperature-sensitive colorimetric and catalytic properties through combining the surface plasmon resonance properties of gold nanoparticles (AuNPs) with the temperature-sensitive properties of poly(N-isopropylacrylamide) (PNIPAM)-based microgels. Microgels with hydroxy groups (MG-OH) were prepared by soap-free emulsion polymerization, using N-isopropylacrylamide as the main monomer, hydroxyethyl methylacrylate as the functional monomer, N,N '-methylene bisacrylamide as the crosslinker, and 2,2 '- azobis(2-methylpropionamidine) dihydrochloride as an initiator to ensure the microgels are positively charged. Furthermore, chemical modification on the surface of MG-OH was carried out by 3-mercaptopropyltriethoxysilane to obtain thiolated microgels (MG-SH). Two kinds of hybrid nanoparticles, AuNPs@MG-OH and AuNPs@MG-SH, were self-assembled, through electrostatic interaction between positive MG-OH and negative citrate-stabilized AuNPs as well as through synergistic bonding of electrostatic interaction and Au-S bonding between positive MG-SH and negative AuNPs. The morphology, stability, temperature-sensitive colorimetric properties, and catalytic properties of hybrid microgels were systematically investigated. Results showed that although both AuNPs@MG-OH and AuNPs@MG-SH exhibit good temperature-sensitive colorimetric properties and controllable catalytic properties for the reduction reaction of p-nitrophenol, AuNPs@MG-SH with synergistic bonding has better stability and higher catalytic performance than AuNPs@MG-OH. This work has good competitiveness against known PNIPAM-based materials and may provide an effective method for preparing smart catalysts by self-assembly with stimuli-responsive polymers, which has a great potential application for catalyzing a variety of reactions.

Flexible free-standing one-dimensional photonic crystals (1DPCs) have attracted tremendous attentions owing to the simplest structure and promising applications in various fields. However, that most of flexible 1DPCs need dozens of stacks to achieve excellent optical properties and weak robustness in extreme environments hinder their practical applications. Herein, we prepare a series of robust, flexible free-standing polyimide (PI)/SiOx nanocomposite 1DPCs by solution process. Inorganic SiOx with low refractive index (n) is derived from the precursor perhydropolysilazane (PHPS) while the super-engineering plastic PI is served as the high-refractive-index constitution. Thanks to the high refractive index contrast (Δn) and uniform micromorphology of both materials, vivid PI/SiOx 1DPCs with tunable photonic bandgap are obtained and the reflectance is high up to 97% within only 9 layers. Due to the intrinsic properties and covalent binding between PI and SiOx layers, the free-standing nanocomposite remains stable in the wide range of – 196–200 °C and has no degradation of optical performance after bending deformation for 500 times. Additionally, PI/SiOx 1DPCs show great resistance to organic solvent, acid solution and ultraviolet (UV) radiation. Therefore, it is envisioned that the flexible free-standing PI/SiOx 1DPCs have great potential for applications in harsh environment.

印刷包装领域用复合胶粘剂的水性化已有25年的历史.在这25年的发展历程中,从最初的几家公司发展至2006年的数十家,再经10余年的发展,与其他乳液聚合产品一样逐步形成了垄断局面.纸塑复合领域基本被8家公司所垄断,塑塑软包装用水性复合胶粘剂基本由5家公司所垄断.本文就印刷包装用复合胶粘剂的现状及未来发展进行综合评述,并就目前国内印刷包装领域用丙烯酸酯乳液复合胶粘剂所用的交联技术在不同使用场所存在的可能问题提出了有效的解决途径.

Green and environment-friendly preparation are of the utmost relevance to the development of transparent antismudge coatings. To prepare a waterborne polyurethane (WPU) coating with antismudge property, it is challenging to balance the stability of dispersion and the antismudge property of coating. Herein, we prepare a transparent bio-based WPU coating grafted with a minor proportion of poly(dimethylsiloxane) (WPU-g-PDMS) using renewable castor oil, monocarbinol-terminated PDMS, hexamethylene diisocyanate trimer, and 2,2-bis(hydroxymethyl)propionic acid as raw materials. Effects of the dosage of monocarbinol-terminated PDMS, the curing temperature, and the curing time on the antismudge performance were studied. Results showed that rigorous stirring (3000 rpm) is necessary to obtain a stable WPU-g-PDMS dispersion with a storage time longer than 6 months. A high curing temperature (>160 °C) and a period of curing time (>1 h) are indispensable to obtain the excellent antismudge property because they would facilitate the grafted low-surface-tension PDMS chains to migrate from the interior to the coating surface. The facts that simulated contaminated liquids such as water, HCl solution, NaOH solution, artificial blood, and tissue fluid could slide off easily and cleanly, and marker ink lined on the coating surface could shrink, indicated that the WPU-g-PDMS coating has good antismudge properties, which could be self-compensated shortly after deterioration. Due to the high cross-linking degree caused by multifunctional polyol and isocyanate, the WPU-g-PDMS coating has high hardness and good anticorrosive performance. The antismudge functionalization and waterborne technology of bio-based polyurethane coatings proposed in this work could be a promising contribution to the green and sustainable development of functional coatings. This kind of WPU-g-PDMS coating is expected to protect and decorate electronic screens, vehicles, and buildings, especially endoscopes.

Traditional pressure-sensitive adhesive (PSA) materials are prone to failure under oily and high-temperature environments. Herein, a new series of acrylate copolymers, poly(methoxyethyl acrylate -butyl acrylate -ethyl acrylate -acrylic acid -(N-methoxy acrylamide)), were developed as single-component acrylic PSAs. The oil -resistance and heat-resistance of acrylic PSAs were improved remarkably through three strategies: 1) using the polar monomer, methoxyethyl acrylate (MOEA), to replace the commonly used monomer of 2-ethylhexyl acrylate (EHA), as the dominant ingredient in PSA to increase oil-resistance, 2) innovatively introducing N-methoxy acrylamide (NMOAM) as a new internal crosslinking monomer, thereby maintaining the stability of the PSA system at ambient conditions, while crosslinking with acrylic acid (AA) at high temperature curing con-ditions to obtain a single-component PSA, 3) owing to the synergistic effects of polarity and crosslinking which occurred during curing process, the oil-resistance and heat-resistance of PSAs enhanced greatly. The molecular weight of the acrylate copolymers and viscosity of the copolymer solutions were regulated by using xylene as a co-solvent to balance the adhesive properties of the acrylic PSAs. Effects of MOEA and NMOAM concentration on adhesive properties were investigated in detail. Results showed that the maximum tack of 12 #, shear strength of >168 h, and 180 degrees peel resistance of 23.47 +/- 0.07 N/24 mm could be obtained when 60 wt% of MOEA and 3 wt% of NMOAM were used for the PSA preparation. The obtained PSA tapes were able to maintain excellent adhesive properties even in harsh environments, such as high temperature and oily environment. This work demonstrates that how the comprehensive properties of acrylic PSAs can be improved thereby facilitating their application in the automobile industry, including bundling wire harnesses in car engine rooms or mounting attached parts to tanks.

Combining the advantages of solvent-based and water-based anticorrosive coatings, a waterborne composite dispersion of hydroxy acrylic resin (HAR) and modified graphene oxide (MGO) was prepared for application as an anticorrosive coating. MGO was obtained using 3-aminopropyltriethoxysilane as the coupling agent to introduce NH2 groups onto the graphene surface. HAR with COOH, OH and epoxy groups was prepared at a high solid content of up to 80% through solution copolymerization using methacrylic acid, hydroxyethyl methacrylate, methyl methacrylate, n-butyl acrylate and styrene as monomers, tert-butyl peroxybenzoate as the initiator, and propanediol butyl ether and dimethylbenzene as solvents. The covalent bonds between NH2 and epoxy groups would be formed after blending MGO dispersion and the neutralized HAR to improve its compatibility. The effect of dosage of MGO on the viscosity of water-dispersion of HAR (WHAR), and the hardness, adhesion, contact angle of film formed by WHAR, and the anticorrosive performance of the composite coatings were investigated in detail. Results showed that the more MGO added, the higher viscosity of WHAR-MGO. A small amount of MGO formed a barrier layer after being evenly distributed in the coatings, but excessive MGO agglomerated, thereby reducing the compatibility. Composite coatings with 0.25% MGO had the best corrosion performance in 3.0 wt% NaCl aqueous solution, and the |Z|0.01Hz was 10–20 times higher than other coatings with or without MGO, and the Icorr was 10 times lower than coating without MGO. This work provides a good way to balance the environmental issue of organic solvent emission and corrosive properties of water-borne polyacrylate coatings.

Waterborne polyacrylic anticorrosion coatings prepared with regular organic molecular emulsifiers suffer from reduced water and corrosion resistance. Herein this work, micron-dimensional sulfonated reduced graphene oxide (SRGO) sheets were prepared and introduced in-situ to co-stabilized the emulsion polymerization for improving dispersibility, compatibility and anticorrosive properties of polyacrylic/graphene composite coatings. By simulating the industrial polyacrylic latex formulation, effects of sulfonation degree of SRGO, dosage of SRGO and weight ratio of oil/water phase on the emulsion polymerization behaviour were systematically studied. The anticorrosion properties of polyacrylic/graphene composite coatings were evaluated through polarization curve and electrochemical impedance spectroscopy. Corrosion phenomena, such as bubbling and rusting, appearing on the surface of coatings after exposure to water or aqueous salt solution, were systematically identified to compare the degree of corrosion. All results demonstrated that micron-sized SRGO sheets with good hydrophilic property could be dispersed well in-situ to facilitate the emulsion polymerization. The anticorrosive performance of the polyacrylic/graphene composite coatings have been dramatically improved by introducing SRGO at a low dosage as 0.2%, which suggests the application of micron-sized graphene sheets in the industrial polyacrylic-based anticorrosion coatings would be accelerated.

神经性毒剂和大部分有机磷酸酯农药均属于有机磷毒剂,可抑制人体内乙酰胆碱酯酶活性,导致过量乙酰胆碱在体内的积累,从而引发一系列健康问题甚至死亡.传统大型仪器对有机磷毒剂的检测准确度高,但检测周期长、样品处理复杂且需要专业仪器和技术人员.如何进行快捷检测、鉴定并及时对有机磷毒剂进行洗消,对中毒的提早防治和生命的挽救具有重要的现实意义.本文总结了基于贵金属纳米粒子与有机化合物的复合以及金属有机框架材料这两种金属?有机杂化材料对有机磷毒剂的检测与洗消,综述了可在短时间内直接通过颜色变化或荧光变化对有机磷毒剂进行快捷检测的比色法和荧光法的研究进展,总结了利用金属有机框架材料实现对有机磷毒剂检测与吸附降解的效果,并对未来的发展进行了展望.

Polymeric coating technology provides a cost-effective and convenient solution for the surface pollution and corrosion issues on various substrates. Herein, a series of transparent and omniphobic bio-based polyurethane (PU) coatings with high hardness, excellent anti-smudge and anti-corrosion properties were prepared by using castor oil as bio-polyol, hexamethylene diisocyanate trimer (HDIT) as a cross-linking agent, and a small amount of monocarbinol terminated polydimethylsiloxane (PDMS-OH) as an eco-friendly anti-fouling agent. Effects of the R-value (mole ratio of isocyanate groups to hydroxyl groups) and dosage of PDMS-OH (wt%) on the PU-PDMS coating's hardness, surface wettability, anti-smudge and anti-corrosion performance have been thoroughly investigated. It was found that the higher R-value led to increased coating hardness. The element content of silicon on the coating surface was confirmed to be higher than the theoretical value since the grafted PDMS chains partially enriched from the inner matrix to the coating surface for reducing overall surface energy. Various simulated water-based contaminants could quickly slide off from the coating surface without leaving any traces. Writing traces of oil-based marker could be shrunk immediately after writing and wiped clean from coating surface completely. Such anti-smudge properties could be maintained even after 1000 cycles of polishing. Moreover, the anti-corrosion performance of these PU-PDMS coatings has been investigated through electrochemical tests. The capacitance circular arc radius of PU1.5-PDMS4.0 is 10 times of tinplate and 4 times of PU1.5, indicating the obtained coatings could offer better corrosion protection for tinplate than the regular PU coatings. This work would broaden the polyurethane application in omniphobic anticorrosion coatings.

The usage of organophosphate esters as pesticides or nerve agents in chemical warfare caused vital environmental and safety issues. Although metal organic frameworks (MOFs) are often applied to remove the organophosphate esters by adsorption and catalytic degradation, a basic environment with N-ethylmorpholine buffer is essential. In this study, four kinds of zirconium-based MOFs (Zr-MOFs), labeled UiO-66, UiO-67, UiO-67-NH2, and UiO-67-2NH2, were prepared by the solvothermal method to decontaminate aqueous solutions containing organophosphate esters of paraoxon (POX) and sarin (a nerve agent) without adding any additional basic buffer. Effects of MOF/POX mass ratio and temperature on degradation kinetics and efficiency were investigated in detail. A possible mechanism for the POX decontamination by Zr-MOFs was proposed and verified. Results showed that the POX decontamination catalyzed by Zr-MOFs was a pseudo-first-order reaction. The introduction of amino groups in Zr-MOFs could increase the decontamination rate, which follows the order of “UiO-67-2NH2 > UiO-67-NH2 > UiO-67 > UiO-66”. The half-lives of POX and sarin with UiO-67-2NH2 were 18 min and 5 min respectively, and more than 90% POX and 99% sarin could be decontaminated at room temperature. Compared with previous similar studies on POX degradation in N-ethylmorpholine buffer, UiO-67-2NH2 performs significantly better in terms of catalytic efficiency and environment. This work would broaden the application scope for the decontamination of aqueous solutions containing organophosphate esters under mild conditions, and offer an effective approach for the treatment of chemical warfare agents in modern society.

石墨烯(Gr)具有优异的光学、电学和力学等特性,在材料、能源或生物医学领域具有重要的应用前景,特别是Gr具有超隔离性,当将其用作涂料填料使用时,可极大提高涂层的防腐性能.但是由于Gr的高比表面积及层间的范德华力,又使其非常容易团聚,限制了其实际使用.对Gr进行分散改性,促进其在基体中的均匀分布,对扩大Gr的应用范围和提高材料的性能具有重要意义.本文主要介绍了Gr及其衍生物的共价改性、非共价改性、掺杂改性和原位聚合改性等方法,通过增加Gr层间位阻效应,改变Gr表面的双亲性,增强其与涂料聚合物基之间的相容性,从而提高其在涂料中的分散性.此外,本文还分析了各种改性方法的优缺点,提出了进一步提高Gr及其衍生物分散性的改性方向;总结了Gr及其衍生物在防腐涂料中的作用机制,建议今后在实验探索的基础上,加强对防腐机制的研究.