Synthesis and characterization of polyurethanes bearing carbosilane segments

被引：2

作者：

Karimata, Ayumu ^{[1
]}

Matsumoto, Kozo ^{[1
,2
]}

Endo, Takeshi ^{[1
]}

机构：

[1] Kindai Univ, Mol Engn Inst, 11-6 Kayanomori, Iizuka, Fukuoka, Japan

[2] Kindai Univ, Dept Biol & Environm Chem, 11-6 Kayanomori, Iizuka, Fukuoka, Japan

来源：

RSC ADVANCES | 2016年 / 6卷 / 97期

关键词：

BLOCK-COPOLYMERS; POLYMERIZATION; ISOCYANATE;

D O I：

10.1039/c6ra19352h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel polyurethanes bearing carbosilane segments (1a-c) were synthesized. Their thermal and mechanical properties were compared with corresponding reference polyurethanes bearing carbon-based backbone (2a-c). The thermal properties of these polyurethanes were investigated by DSC and TGA. Glass transition temperature was significantly reduced by substituting carbon atom with silicon (1a-c). Moreover, the thermal decomposition temperature of 1a-c was found to be comparable to 2a-c. Furthermore, Young's moduli of 1a-c were lower than those of 2a-c. A large potential of carbosilane unit as a soft segment for building new polyurethanes have been demonstrated in this paper.

引用

页码：94803 / 94808

页数：6

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