Wei, Haibing; Fang, Xingzhong; Han, Ying; Hu, Benlin; Yan, Qing published the artcile< Synthesis and characterization of poly(thioether ether sulfone imide)s derived from isomeric bis(chlorophthalimide)s and bis(4-mercaptophenyl) sulfone>, Category: chlorides-buliding-blocks, the main research area is polyether polyimide polysulfone polythioether synthesis thermal mech property.
A series of isomeric bis(chlorophthalimide)s (BCPIs) were conveniently prepared from 3-chlorophthalic anhydride, 4-chlorophthalic anhydride, and mixtures thereof. Polymerization of BCPIs with bis(4-mercaptophenyl) sulfone (BMPS) proceeded smoothly in the presence of tributylamine, from which a class of isomeric poly(thioether ether sulfone imide)s (PTESIs) with inherent viscosities of 0.45-0.82 dL/g were obtained. The solubility, thermal stability, and mech. properties of these polymers were characterized. Compared to the PTESIs derived from single BCPIs, i.e., 3,3′-, 3,4′-, or 4,4′-BCPIs, the PTESIs derived from mixed BCPIs showed better solubility and higher storage modulus. These PTESIs also demonstrated good thermal stability, giving only 5% weight loss at temperature of 490° in nitrogen atm. The glass transition temperatures (T gs) of these isomeric PTESIs were between 242 and 265°, and were increased with increasing of the ratio of 3-chlorophthalimide unit in the polymer backbone.
European Polymer Journal published new progress about Complex modulus, tan δ. 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, Category: chlorides-buliding-blocks.
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