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Showing 1 to 4 of 4 for “"terephthaloyl chloride"”.
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Synthesis and Thermal Characterization of a Series of Copolyesters Synthesized from Terephthaloyl Chloride, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and Bisphenol A, AF, F, and HPF
… their common industrial use. Copolymers of CBDO, terephthaloyl chloride, and the various bisphenols were synthesized and characterized for structure and thermal properties The percent incorporation of the CBDO and bisphenol were varied in order to examine the effect on thermal properties The …
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Polysiloxane-polyarylester block copolymers: synthesis and characterization
… the copolymerization by reacting bisphenol-A, terephthaloyl chloride, and isophthaloyl chloride with a difunctional aminopropyl-terminated siloxane oligomer. To vary the miscibility of the siloxane and ester phases, and in turn the physical properties of the block copolymers, the block …
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Advanced polymeric membranes for hydrogen purification and carbon dioxide capture
… of solid polybenzimidazole (PBI) films in terephthaloyl chloride solution. Our second study illustrated that PBI doped with polyprotic acids such as H3PO4 and H2SO4 exhibits ultrahigh H2/CO2 selectivity. The acids cross-link PBI chains, decrease free volume and drastically improve H2/CO2 …
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Synthesis and characterization of heterocyclic polymers: polybenzoxazoles and cyanate ester networks
… bis( ortho amino phenols) and aromatic diacid chlorides via solution step polymerization in Nmethyl- 2-pyrrolidone (NMP). It was demonstrated that reaction temperatures of about 0 Cor lower were highly desired in order to obtain high molecular weight polyhydroxy amides. It was postulated that …