Synthesis and crystallization pattern of poly urethane urea amide based thermoplastic elastomers

Abstract

A typical thermoplastic polyurethane-urea (PUU) are (AB)n type block newlinecopolymers consisting of sequences of hard and soft segments. The foundational studies newlineof this dissertation concern with the synthesis and crystallization pattern of newlinepoly(urethanes-urea/amide)s (PUU/A) using different chain extenders molecules that are newlinetypically used to promote a microphase separated morphology that intern gives useful newlinecharacteristics to these materials. newline