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

被引：99

作者：

Bogdanov, B

Toncheva, V

Schacht, E

Finelli, L

Sarti, B

Scandola, M

机构：

[1] State Univ Ghent, Polymer Mat Res Grp, B-9000 Ghent, Belgium

[2] Univ Bologna, Dept Chem G Ciamician, I-40126 Bologna, Italy

来源：

POLYMER | 1999年 / 40卷 / 11期

关键词：

glass transition; isothermal crystallization kinetics; poly(ester-urethanes);

D O I：

10.1016/S0032-3861(98)00552-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 properties 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 the glass transition temperature of PEUs increases in comparison with the PCL prepolymers. The restriction of the crystallization of the PCL soft segment depends on the hard segment concentration, length of the soft segment, and total molecular weight of the PEUs. (C) 1999 Elsevier Science Ltd. Ail rights reserved.

引用

页码：3171 / 3182

页数：12

共 52 条

[1] STRUCTURE PROPERTY BEHAVIOR OF SEGMENTED POLYETHER MDI BUTANEDIOL BASED URETHANES - EFFECT OF COMPOSITION RATIO [J].