Synthesis and Characterization of Organic-Inorganic Membranes Containing Sulphogroups

Abstract

Organic-inorganic materials have been synthesized by photoinitiated copolymerization of monomers: acrylonitrile, acrylamide and 3-sulphopropyl acrylate potassium salt in the presence of sol-gel systems based on tetraethoxysilane. Thermal stability, water uptake and ion-exchange capacity of obtained materials have been determined. Undertaken studies may be used for development of protonconductive membrane for fuel cells.

Improving the Long-Term Performance of Poly(Vinyl Chloride)

“…Hydrogels are obtained both from natural organic raw materials [22][23][24] and from synthetic polymers. [25][26][27][28][29] Hydrogels based on poly-2-hydroxyethyl methacrylate (pHEMA) 30 and its copolymers 31,32 are distinguished from a wide range of synthetic highly hydrophilic polymers. pHEMA and its copolymers are characterized by a high degree of water absorption, the ability to absorb low molecular weight substances, high biocompatibility, and low thrombogenicity.…”