Odd even number effect of methylene-chain of polycarbonate glycol on physical properties of polyurethane elastomers

Makoto Shimada, Machiko Sakai, Tetsuo Masubuchi, Suguru Motokucho, Ken Kojio, Mutsuhisa Furukawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polyurethane elastomers (PUEs) were synthesized from polycarbonate (PC) glycols with different number of methylene chains between carbonate groups. Wide angle X-ray diffraction (WAXD) profiles of PC glycol showed that the odd even effect of methylene chain affected on the crystallinity of the PC glycol. DSC thermograms revealed that the degree of microphase separation of the PC based PUEs became stronger with increasing number of methylene chain of PC glycol. The PC glycol with methylene chain of even-number based PUEs exhibited a steep increase around larger strain. It was revealed from these results that the number of methylene chain of PC glycol affects not only on the properties of PC glycol itself but the PUEs incorporated these PC glycols.

Original languageEnglish
Title of host publication54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan
Pages3391-3392
Number of pages2
Volume54
Edition2
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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