Toughening of amorphous poly(propylene carbonate) by rubbery CO2-based polyurethane: transition from brittle to ductile

	Toughening of amorphous poly(propylene carbonate) by rubbery CO2-based polyurethane: transition from brittle to ductile
	Ren,Guanjie; Miao,Yuyang; Qiao,Lijun; Qin,Yusheng; Wang,Xianhong; Wang,Fosong
刊名	rsc advances
	2015
卷号	5 期号:62 页码:49979-49986
关键词	MICROMECHANICAL DEFORMATION PROCESSES FILLED SEMICRYSTALLINE POLYMERS HIGH-IMPACT POLYSTYRENE PHASE-MORPHOLOGY PART 2 BLENDS BEHAVIOR POLYLACTIDE DIOXIDE COPOLYMERIZATION
通讯作者	qin,ys
英文摘要	amorphous poly(propylene carbonate) (ppc) is brittle at room temperature, but the studies related to the toughening of ppc is rare. herein, two types of polyurethane (pco2pu) synthesized from a co2-based diol and toluene diisocyanate were used as rubbery particles to toughen ppc. the notched impact strength of ppc increased from 20.8 j m(-1) to 54.2 j m(-1) at a pco2pu loading of 20 wt%, comparable with that of neat nylon 6, and reached 228.3 j m(-1) at a pco2pu loading of 30 wt%, 10.9 fold that of neat ppc and even higher than bisphenol a polycarbonate. matrix yielding as well as cavitation was observed during the impact process, which was responsible for the increase of impact strength. moreover, the toughening efficiency was related with the carbonate content of pco2pu, and the transition of fracture behavior from brittle to ductile occurred when the pco2pu with a weight average diameter of 0.20 mu m was uniformly dispersed in ppc substrate.
收录类别	SCI
语种	英语
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/67849]
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	Ren,Guanjie,Miao,Yuyang,Qiao,Lijun,et al. Toughening of amorphous poly(propylene carbonate) by rubbery CO2-based polyurethane: transition from brittle to ductile[J]. rsc advances,2015,5(62):49979-49986.
APA	Ren,Guanjie,Miao,Yuyang,Qiao,Lijun,Qin,Yusheng,Wang,Xianhong,&Wang,Fosong.(2015).Toughening of amorphous poly(propylene carbonate) by rubbery CO2-based polyurethane: transition from brittle to ductile.rsc advances,5(62),49979-49986.
MLA	Ren,Guanjie,et al."Toughening of amorphous poly(propylene carbonate) by rubbery CO2-based polyurethane: transition from brittle to ductile".rsc advances 5.62(2015):49979-49986.