Polymer International

The partially exfoliated PU/NBR blend (1:1 by weight) shows maximum improvement in tensile properties, T_g and thermal stability, LOI, storage and loss modulus for 1, 3 and 8 wt % DS-LDH respectively.

Researchers in the scientific community actively discuss the fact that polymer hydrogels synthesized by crosslinking polly(allylamine hydrochloride) with epichlorohydrin do not show or show imprinting on the molecular level.

The hopping model and QM/MD calculations indicate that the main charge transfer route within the P3HT ordered domains is along the intrachain routes instead of the interchain routes.

Poly(arylene ether sulfone)s with systematically varied degrees of branching and sulfonation were synthesized through oligomeric A₂ + B₃ methods and characterized for application as electroactive polymer membranes.

A series of porous hydrogels were prepared by neutralizing a conventional hydrogel after gel formation. The pores were induced into the hydrogel by water evaporation and gas releasing resulting from neutralization process.

Kinetic NMR study of dimethyldimethoxysilane reactions (exchange, hydrolysis and condensation) in the conditions used for paper deacidification (alcohol medium) shows that condensation is the slowest.

Maintaining porous structure, good mechanical properties and cytocompatibility, adding of heparin leads silk fibroin/chitosan scaffold to be blood compatible and an effective heparin delivering system.

A nanocomposite of chitosan-g-methylmethacrylate (CS-g-MMA) containing Ag nanoparticles was prepared by in situ chemical reduction of Ag ions in an aqueous acetic acid solution of CS and graft copolymerization of MMA onto CS.

New natural clay was employed to prepare nanocomposites of PMMA. The important enhancement of their thermal properties, shows the real interest to use this clay as reinforcing nanofiller in polymer matrices.

The compositions of the inverse microemulsion system were determined by pseudoternary phase diagrams. The reactivity ratios of Am (r_AM = 0.61) and SSS (r_SSS = 1.99) were calculated by the application of Kelen-Tüdös method.

Electrospun poly(vinyl alcohol) (PVA) fibers reinforced with α-chitin whiskers were prepared with the content of the whiskers ranging from 2.5 to 11.4 wt%. The obtain fiber matrices were characterized by X-ray diffraction and dynamic mechanical analyses.

An electrospinning technique has been applied to develop a new type of tissue sutures, which exhibited comparable strength requested by a suture application, had no cellular toxicity and performed preferable histological compatibility.

Based on the criteria of tensile properties and volume resistance, poly[ethylene-co-(ethyl acrylate)] (EEA)/MWCNT nanocomposite was selected as the best candidate for a SCL of high electrical power cables.

Epoxy methacrylate resin UV-curable coating containing phthalazinone exhibited the excellent chemical and thermal stability, and it could be potential candidate of UV-curable zero volatile organic compound coating.

The influence of an octaepoxy-POSS^® in the thermal degradation mechanism of an epoxy-amine system was studied by thermogravimetric analysis, TGA. Moreover, a light improvement on flame retardancy by the presence of POSS^® is proved.

The expandable graphite was functionalized by coupling agent. This will improve the compatibility between fillers and polymer to enhance the thermal stability and flame retardancy of composites.

Pectin was crosslinked with Trisodium Trimetaphosphate, thereby obtaining a material with reduced water solubility. Pect-STMP, prebiotic and Eudragit^® RS 30 D was used (in aqueous dispersion) to obtain coating, which can be applied in modified drug release.