聚酯纤维
缩聚物
热重分析
材料科学
聚合物
高分子化学
环己酮
结晶度
亚苯基
环戊酮
溶解度
有机化学
化学
复合材料
催化作用
作者
Mahmoud A. Abdalla,Kamal I. Aly
标识
DOI:10.1177/152483999000200303
摘要
A new class of unsaturated polyesters of diarylidenecycloalkanones con taining the azomethine group in the polymer backbone has been prepared. Synthesis involved the interfacial polycondensation of 4,4'-[1,4-phenylene bis (methylidynenitrilo)] dibenzoyl chloride II with 2,5-bis(p-hydroxybertzylidene) cyclopentanone III, 2,5-di vanillylidenecyclopentanone IV, 2,6-bis(p-hydroxybenzylidene) cyclohexanone V or 2,6- divanillylidenecyclohexanone VI at ambient temperature. The resulting polyesters were characterized by elemental analyses, IR spectroscopy, solubility and viscometry measure ments. The thermal properties of the polymers were evaluated by thermogravimetric analysis and differential thermal analysis measurements and correlated to their structu ral units. The crystallinity of all polymers was examined by X-ray analysis. In addition, the electrical properties of all polyesters were measured.
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