Effect of the molecular structure of polyurethane elastomers on the thermomechanical properties of PUE/PC blends

	Effect of the molecular structure of polyurethane elastomers on the thermomechanical properties of PUE/PC blends
	Tan JJ ; Jia ZY ; Sheng DK ; Liu XD ; Yang YM
刊名	journal of applied polymer science
	2012
卷号	124 期号:1 页码:412-420
关键词	BISPHENOL-A POLYCARBONATE POLYCARBONATE/POLY(EPSILON-CAPROLACTONE) BLENDS MISCIBILITY CRYSTALLIZATION POLYMERS TRANSITION MORPHOLOGY BEHAVIOR
ISSN号	0021-8995
通讯作者	yang ym
中文摘要	polyurethane elastomers (pues) based on 4,4'-diphenylmethane diisocyanate (mdi), 1,4-butanediol (bdo) and two kinds of aliphatic polycaprolactone (pcl) diols with molecular weight of 1000 da and 2000 da have been synthesized and melt-blended with polycarbonate (pc). the compatibility of pc and pues was investigated by differential scanning calorimetry (dsc), dynamic mechanical analysis (dma) and scanning electron microscopy (sem). the results indicated that the glass transition temperature (t-g) of pc decreased by 0-40 degrees c when 010 wt % of pues incorporated into the pc matrix. phase separation in the blends was not detected by means of dsc characterization, but measurements of dma and sem indicated that phase separation existed in the blends of pc and pues synthesized with 1000 da pcl-diol. as for pues/pc blend in which 2000 da pcl-diol as pues' soft segments, it turned from completely compatible to partially when the nco/oh ratio for the pues prepolymer was increased from 2 : 1 to 4 : 1. the compatibilities of pc and pues were greatly influenced by the molecular weight of polyols and the ratio of nco/oh in the pue prepolymer, higher molecular weight of polyols and lower nco/oh ratio resulted in better compatibility. (c) 2011 wiley periodicals, inc. j appl polym sci, 2012
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000298637300048
公开日期	2013-05-22
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48234]
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	Tan JJ,Jia ZY,Sheng DK,et al. Effect of the molecular structure of polyurethane elastomers on the thermomechanical properties of PUE/PC blends[J]. journal of applied polymer science,2012,124(1):412-420.
APA	Tan JJ,Jia ZY,Sheng DK,Liu XD,&Yang YM.(2012).Effect of the molecular structure of polyurethane elastomers on the thermomechanical properties of PUE/PC blends.journal of applied polymer science,124(1),412-420.
MLA	Tan JJ,et al."Effect of the molecular structure of polyurethane elastomers on the thermomechanical properties of PUE/PC blends".journal of applied polymer science 124.1(2012):412-420.