Physical properties of poly(ester-urethanes) prepared from different molarmass polycaprolactone-diols

Authors
Bogdanov, B Toncheva, V Schacht, E Finelli, L Sarti, B Scandola, M
Citation
B. Bogdanov et al., Physical properties of poly(ester-urethanes) prepared from different molarmass polycaprolactone-diols, POLYMER, 40(11), 1999, pp. 3171-3182
Citations number
52
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
40
Issue
11
Year of publication
1999
Pages
3171 - 3182
Database
ISI
SICI code
0032-3861(199905)40:11<3171:PPOPPF>2.0.ZU;2-T
Abstract
Segmented poly(ester-urethanes) (PEUs) based on poly(epsilon-caprolactone) (PCL) as a soft segment and a non-aromatic diisocyanate in the hard segment were synthesized. The soft segment crystallinity and other physical proper ties of the PEUs were studied. It was found that the crystallinity and rate of crystallization of the PCL continuous phase in the PEUs decreases and t he glass transition temperature of PEUs increases in comparison with the PC L prepolymers. The restriction of the crystallization of the PCL soft segme nt depends on the hard segment concentration, length of the soft segment, a nd total molecular weight of the PEUs. (C) 1999 Elsevier Science Ltd. Ail r ights reserved.