The Co-Poly(Urethane-Imide) Heat Resistant Thermoplastic Elastomers

Abstract

Co-Pоly (Urethane-Imide) s (CPUI) based on pоly (diethyleneglycol) adipate diol, tolylenediisocyanate, multinucleate dianhydrides and diamines were synthesized. The films and moldings from CPUI were processed and their mechanical characteristics were evaluated. Distinctions of specifications of the films formed from polymer solutions and the moldings formed from melt polymers are indicated when using the same starting CPUI. It appears that films and moldings possess typical properties of elastomers. The reprocessing of studied copolymers by using the injection molding method allows to assign CPUI to the thermoplastic elastomers or so-called thermoelastoplasts.

Comparative characteristics of products of processing of fusible copoly (urethane-imides) from the solutions and melts formed by them

“…Задача представленной работы состоит в сопоставлении свойств пленок и молдингов, с тем чтобы выявить, насколько температура и сдвиговые усилия при переработке сополимеров влияют на эластические (вязкоупругие) свойства молдингов. Вопрос о различиях в свойствах продуктов переработки сополи(уретан-имидов) различающимися методами поднимался нами ранее в [16].…”