Toughening of poly(propylene carbonate) by carbon dioxide copolymer poly(urethane-amine) via hydrogen bonding interaction

被引：0
|
作者：
Lin Gu
Qing-yun Wu
Hai-bin Yu
机构：
[1] Chinese Academy of Sciences,Key Laboratory of Marine New Materials and Application Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering
[2] Ningbo University,Department of Polymer Science and Engineering, Faculty of Materials Science and Chemical Engineering
来源：
Chinese Journal of Polymer Science | 2015年 / 33卷
关键词：
Carbon dioxide copolymer; Blend; Toughening; Poly(propylene carbonate); Poly(urethane-amine);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A carbon dioxide copolymer poly(urethane-amine) (PUA) was blended with poly(propylene carbonate) (PPC) in order to improve the toughness and flexibility of PPC without sacrificing other mechanical properties. Compared with pure PPC, the PPC/PUA blend with 5 wt% PUA loading showed a 400% increase in elongation at break, whilst the corresponding yielding strength remained as high as 33.5 MPa and Young’s modulus showed slightly decrease. The intermolecular hydrogen bonding interaction in PPC/PUA blends was confirmed by FTIR, 2D IR and XPS spectra analysis, and finely dispersed particulate structure of PUA in PPC was observed in the SEM images, which provided good evidence for the toughening mechanism of PPC.
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页码：838 / 849
页数：11
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