The experimental results confirmed the possibility of forming complexes between Bombyx mori protein and chitosan. It was found that changes in the pH of the medium significantly influence the complexation process. In particular, in 2
In this paper, a SA/AM/acrylic acid (AA)/CNC/Ca2+ double network anisotropic hydrogel was prepared by stretching, remodeling, drying, and ionic crosslinking methods. SEM images show that the prepared hydrogel has an anisotropy. When the CNC content increases to 3 wt
This research focuses on the preparation of composite materials consisting of polyaniline (PANI), multi-walled carbon nanotubes (MWCNTs), and cellulose acetate (CA). This material was characterized structurally, morphologically, and electrochemically. Two materials were considered, PANI/CA and PANI/MWCNT/CA. In the fabrication process, the following critical occurrences happened: monomer coupling of aniline, unfolding of the CA fibers to make nano-sheets, π−π stacking of MWCNTs to PANI chain, and ionic bonding of PANI and CA. Such events resulted in the formation of a layered nanomembranous material with increased surface and improved electrochemical performance. The MWCNT played the role of binder of PANI/CA, giving rise to new redox centers and transfer pathways. The nanomaterial showed electroactivity, conductive, hydrophilic, biocompatible and stable. Catechol and Ascorbic acid were taken as analytes, where the modified PANI/MWCNTs/CA electrode had better sensitivity for catechol. The prepared sensor had a good linear range (20 µM to 20 mM), fast response time (4 s) and lower detection limit [22.51 µM (Ascorbic acid) and 19.59 µM (Catechol)].
The new composites of polylactic acid (D-isomer, PDLA) with arabinogalactan (AG) were obtained using ball milling with subsequent heating and electron beam irradiation of the mixtures of PDLA with AG. The formation of composites was confirmed by gel permeation chromatography and IR spectroscopy. The structure and physicochemical properties of the products were studied by X-ray phase analysis, thermal analysis methods, and dissolution in water. It was shown that heating of the ball-milled PDLA–AG mixture followed by electron beam irradiation led to cross-linking of the polymers, with the formation of water-soluble and water-insoluble adducts. The PDLA–AG composite obtained by irradiation is characterized by resistance to crystallization upon heating.
This study investigates the conformational behavior of compatibilizers at the interface of binary immiscible blends under spatial confinement, using dissipative particle dynamics (DPD) simulations. A planar slit model is constructed to systematically examine the effect of confinement height on the dimensions and interfacial statistics of compatibilizer chains. Results show that chain compression is significant under strong confinement and progressively weakens as the slit height increases, saturating when the height approaches half of that in the unconfined state, after which the interface reaches dynamic equilibrium. Furthermore, reduced slit height markedly enhances compatibilizer density at the interface, indicating that spatial confinement promotes interfacial enrichment. Among different topological architectures, graft compatibilizers exhibit the strongest sensitivity of chain size to binary interaction parameters, outperforming linear and ring structures. These findings provide theoretical insights into the conformational regulation and interfacial distribution of compatibilizers under confined environments.
