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گواهی نمایه سازی مقاله Syntheses of Poly(ester-imide)s via Conventional Solution Polymerization

عنوان مقاله: Syntheses of Poly(ester-imide)s via Conventional Solution Polymerization
شناسه (COI) مقاله: ISPST10_703
منتشر شده در دهمین سمینار بین المللی علوم و تکنولوژی پلیمر در سال ۱۳۹۱
مشخصات نویسندگان مقاله:

Zahra Rafiee - Department of Chemistry, Yasouj University, Yasouj 75914-353, I. R. Iran.

خلاصه مقاله:
Polyimides are one of the most superior engineering plastics and characterized by high thermal stability, good mechanical properties and excellent chemical resistance. Because of thehighly coplanar and symmetric aromatic imide structure, polyimides usually possess high glass transition temperatureand high melting temperature which induce serious difficulties in melt processing. Five ways have been proposed to decreasethe melting point of polyimides: (1) introducing a substituted group [1], (2) introducing a meta or ortho-substituted aromatic structure [2], (3) adding a flexible swivel linking group in themain chain [3,4], (4) introducing a crank shaft unit [5,6], (5) introducing a flexible spacer [7,8]. The effects of introducinga flexible spacer have been reported in the investigations of polyesters [6], poly(ester-imide)s [9], and poly(ester-amide)s [2].

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