Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction

doi:10.1002/pi.3132

CORC > 化学研究所 > 中国科学院化学研究所

	Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction
	Chen, Lijie 1,2; Qin, Yusheng 1; Wang, Xianhong 1; Li, Yuesheng 3; Zhao, Xiaojiang 3; Wang, Fosong 1
刊名	POLYMER INTERNATIONAL
	2011-12-01
卷号	60 期号:12 页码:1697-1704
关键词	Poly(Propylene Carbonate) Hyperbranched Poly(Ester-amide) Hydrogen-bonding Interaction Biodegradable Blends Toughening
ISSN号	0959-8103
DOI	10.1002/pi.3132
英文摘要	Poly(propylene carbonate) (PPC) is a biodegradable alternative copolymer of propylene oxide and carbon dioxide. As an amorphous polymer with lower glass transition temperature around 35 degrees C, PPC shows poor mechanical performance in that it becomes brittle below 20 degrees C and its dimensional stability deteriorates above 40 degrees C; thus toughening of PPC is urgently needed. Here we describe a biodegradable hyperbranched poly(ester-amide) (HBP) that is suitable for this purpose. Compared with pure PPC, the PPC/HBP blend with 2.5 wt% HBP loading showed a 51 degrees C increase in thermal decomposition temperature and a 100% increase in elongation at break, whilst the corresponding tensile strength remained as high as 45 MPa and tensile modulus showed no obvious decrease. Crazing as well as cavitation was observed in the scanning electron microscopy images of the blends, which provided good evidence for the toughening mechanism of PPC. The intermolecular hydrogen bonding interaction confirmed by Fourier transform infrared spectral analysis proved to be the reason for the toughening phenomenon. (C) 2011 Society of Chemical Industry
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000297940300005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71309]
专题	中国科学院化学研究所
通讯作者	Wang, Xianhong
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Chen, Lijie,Qin, Yusheng,Wang, Xianhong,et al. Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction[J]. POLYMER INTERNATIONAL,2011,60(12):1697-1704.
APA	Chen, Lijie,Qin, Yusheng,Wang, Xianhong,Li, Yuesheng,Zhao, Xiaojiang,&Wang, Fosong.(2011).Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction.POLYMER INTERNATIONAL,60(12),1697-1704.
MLA	Chen, Lijie,et al."Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction".POLYMER INTERNATIONAL 60.12(2011):1697-1704.