Abstract
Polyether urethane-ureas with alternating flexible and stiff-chain segments were studied by static and time-dependent birefringence. Four temperature regions characterized by different molecular mobility have been identified. The hard segments are assumed to be segregated to form domains embedded in a matrix of the soft, polyether segments. The stiff-chain segments inside the domains are oriented perpendicularly to the largest domain dimension. The length of the statistical segment in the stiff-chain blocks is A ⩾ 13 nm.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
