Characterization of polyester type hyperbranched polyurethane

被引：1

作者：

Ren, Long Fang ^{[1
]}

Li, Zhen ^{[1
]}

Wang, Xue Chuan ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Xian 710021, Peoples R China

来源：

ADVANCES IN CHEMISTRY RESEARCH II, PTS 1-3 | 2012年 / 554-556卷

关键词：

hyperbranched; polyurethane; characterization; STRUCTURE REPRESENTATION;

D O I：

10.4028/www.scientific.net/AMR.554-556.187

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Hyperbranched polyurethane (HPBU) was synthesized by the method of "arm first and core later". The FT-IR and GPC were used to characterize the structure of HBPU. The results showed that the reaction happened as expected routine. Compared with common liner polyurethane, the Mn of HBPU increased 22% and Mw increased 37% at the same viscosity, which demonstrated that HBPU had advantage in low viscosity and easy flowing. The spectrum of X-ray shows the crystallinity of HBPU is higher than the PU, so the cell arranged of the HBPU is more regular.

引用

页码：187 / 190

页数：4

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