Abstract
High molecular weight thermoplastic polyurethane elastomers (TPEs), which consist of crystalline polycaprolactone soft segment and hexamethylene diisocyanate (HDI)/4,4′-dihydroxy biphenyl (DHBP) based mesogenic hard segment, were effectively synthesized by polyaddition reaction in dimethyl sulfoxide. These TPEs had an enantiotropic mesophase in the hard domain, when the content of hard segment was 40wt.% or higher. Differential scanning calorimetry, polarizing microscopy, X-ray scattering analysis, dynamic mechanical test, tensile test were carried out to examine liquid crystalline, thermal, and mechanical properties and shape memory effect of these TPEs. The results were discussed and compared with those of previous articles, where low molecular weight HDI/DHBP based polyurethane or polycaprolactone diol/4,4′-diphenylmethane diisocyanate/1,4-butanediol based TPEs were examined.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
