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

	Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction
	Chen LJ ; Qin YS ; Wang XH ; Li YS ; Zhao XJ ; Wang FS
刊名	polymer international
	2011
卷号	60 期号:12 页码:1697-1704
关键词	MECHANICAL-PROPERTIES BIODEGRADABLE BLENDS MOLECULAR-WEIGHT BINARY BLENDS MISCIBILITY COPOLYMERIZATION COMPLEXES DIOXIDE POLY(EPSILON-CAPROLACTONE) EPOXIDES
ISSN号	0959-8103
通讯作者	wang xh
中文摘要	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
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000297940300005
公开日期	2012-06-07
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44193]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Chen LJ,Qin YS,Wang XH,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 LJ,Qin YS,Wang XH,Li YS,Zhao XJ,&Wang FS.(2011).Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction.polymer international,60(12),1697-1704.
MLA	Chen LJ,et al."Toughening of poly(propylene carbonate) by hyperbranched poly(ester-amide) via hydrogen bonding interaction".polymer international 60.12(2011):1697-1704.