Phase segregation of polyester based-polyurethanes

被引：24

作者：

Chang, CC

Chen, KS

Yu, TL ^{[1
]}

Chen, YS

Tsai, CL

Tseng, YH

机构：

[1] Yuan Ze Univ, Dept Chem Engn, Nei Li 32026, Taiwan

[2] Far Eastern Text Co Ltd, Chem Fiber Plant, Hsinchu 30509, Taiwan

来源：

POLYMER JOURNAL | 1999年 / 31卷 / 12期

关键词：

polyurethane; differential scanning calorimetry; Fourier transform infrared spectroscopy; phase segregation;

D O I：

10.1295/polymj.31.1205

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyester based polyurethanes were synthesized from 4,4'-methylene bis(phenyl isocyanate) (MDI) with 1.4-butanediol as a chain extender and low molecular weight polyester-diol as a soft segment. Four polyesters were used in the synthesis of polyurethanes. Two of the polyesters were synthesized from monomers with even carbon atoms, i.e., adipic acid with 1,6-hexanediol (polyester-6-6) and adipic acid with 1,4-butanediol (polyester-6-4). The other two polyesters were synthesized from monomers with odd carbon atoms, i.e., pimelic acid with 1,5-pentanediol (polyester-7-5) and 1,5-pentanedioic acid with 1,5-pentanediol (polyester-5-5). The effects of compatibility between soft- and hard-segments and the chemical structures of polyesters on the phase segregation of soft- and hard-segments were studied by DSC and FT-IR.

引用

页码：1205 / 1210

页数：6

共 16 条

[1] PHASE SEGREGATION KINETICS IN SEGMENTED LINEAR POLYURETHANES - RELATIONS BETWEEN EQUILIBRIUM TIME AND CHAIN MOBILITY AND BETWEEN EQUILIBRIUM DEGREE OF SEGREGATION AND INTERACTION PARAMETER [J].