A novel organic/inorganic hybrid TVE-resin containing SiO2 structure for phenol removal is successfully prepared by dispersion polymerization, in which the inorganic phase is composed of nano-SiO2 modified by vinyltrimethoxy silane (VTMS) and the organic phase is constituted of ethylene glycol dimethacrylate (EGDMA). The chemical structure and physical properties of TVE-resin are characterized by FUR, TGA, SEM and BET. The adsorption studies imply that the novel materials show optimum adsorption,capacity at pH=6, dose 0.1 g, contact time 60 min, initial concentration 3000 mg/L and room temperature. The pseudo first-order model can be well fitted with the kinetic process. According to the adsorption isotherm analysis, the Freundlich model gives a better fit to the experimental data, indicating a multiple molecular adsorption for phenol removal. The calculated thermodynamic parameters indicate an exothermic and spontaneous process. A mixture desorption solvent containing methanol and deionized water (v:v, 1:1) can regenerate the TVE-resin completely and the resin displays good reusability after five regeneration recycles.

The organic–inorganic self-doped poly (vinyltrimethoxy silane-ethylene glycol dimethacrylate) (VE resin) was synthesized by solution polymerization, hydrolysis and dehydration condensation. In this method, ethylene glycol dimethacrylate (EGDMA) was used as cross-linked reagent to form a three-dimensional network structure. Then, the system was prepared by radical polymerization in the presence of the hydrolysis of –OCH3 and the dehydration condensation of Si–OH. The maximum adsorption capacity 75.68 mg g−1 was achieved when pH was 6, the contact time 60 min, the adsorbent dose 0.1 g, the initial concentration 3000 mg L−1 and the temperature 293 K. The adsorption kinetics followed the pseudo-second-order kinetic model, and the intra-particle diffusion was but not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (ΔH), free energy (ΔG) and entropy (ΔS) indicated that the adsorption process of phenol on VE resin were physical and exothermic. After four regeneration recycles, the adsorption capacity of VE resin remained at 95.04 % of the initial value, which illustrated that it possessed good regeneration capacity.

Phenol is one of the most representative pollutants in industrial wastewater, and the designation and development of a novel and valuable polymer adsorbent is one kind of outstanding method to treat phenol aqueous solution. In this study, a new polymeric adsorbent P(MMA-St-NMA) was synthesized and characterized. The affection of solution pH, initial concentration, time, and temperature on adsorption ability of the synthesized polymer adsorbent was then investigated. Based on the analysis of Fourier transform infrared spectra (FT-IR), H-1 NMR, C-13 NMR, X-ray diffraction, and differential scanning calorimetry, the polymer adsorbent was successfully synthesized. Through the obtained data, the optimum adsorption was achieved when pH was 6, initial concentration 6,000mg/L, contact time 5h, and the higher temperature. The adsorption kinetics was found to follow the pseudo-first-order kinetic model. The intra-particle diffusion analysis indicated that particle diffusion was involved in the adsorption process but it was not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (H), free energy (G), and entropy (S) indicated that the adsorption phenol onto P(MMA-St-NMA) was an endothermic and spontaneous process.

The monomers of methyl methacrylate and vinyl trismethoxy silane were chosen to synthesize the novel self-doped polymer of (h-P(MMA-VTMS)), and then the obtained polymer was used as matrix to prepare GPE.

A polyhedral oligomeric silsesquioxane (POSS) nano-cage can endow gel polymer electrolyte (GPE) with similar properties as can be accomplished with other inorganic nanoparticles; the organic substituents at the cage corners of POSS are more compatible with GPEs.

以甲基丙烯酸甲酯(MMA)和马来酸酐(MAh)单体合成共聚物P(MMA-MAh),并以其为聚合物基体制备了凝胶聚合物电解质.采用傅里叶红外光谱(FT-IR)、差示扫描量热法(DSC)和热失重分析(TGA)对合成共聚物进行了表征,并采用交流阻抗法对制备的凝胶聚合物电解质(GPE)的导锂离子性能作了研究,并且分析了不同温度和配比对其离子电导率的影响.结果表明:成功合成了聚合物P(MMA-MAh),其热分解温度为300℃,玻璃化转变温度为133.9℃,制备的GPE的离子电导率随温度的升高而增大,随聚合物含量的增加而减小,且在研究温度范围内锂离子迁移符合Ar-rhenius方程.

A new hydrophilic acrylic ester resin (MSE-resin) was synthesized by suspension polymerization from methyl methacrylate (MMA), sodium p-styrene sulfonate (SSS), and ethylene glycol dimethacrylate (EGDMA). Batch adsorption studies indicated that the optimum adsorption was achieved when pH was 5, contact time 180min, adsorbent dose 0.2g, initial concentration 2,000mg/L, and temperature 313K. Experimental data showed a good fit with the pseudosecond-order kinetic model. Intraparticle diffusion analysis indicated that the intraparticle diffusion was involved in the adsorption process, but it was not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (H), free energy (G), and entropy (S) indicated that the process of adsorption phenol on MSE-resin was endothermic and spontaneous.