Compositional dependence of the microphase separation transition in styrene-butadiene-styrene triblock copolymer/polystyrene blends

	Compositional dependence of the microphase separation transition in styrene-butadiene-styrene triblock copolymer/polystyrene blends
	Xie R ; Li G ; Liu CM ; Jiang BZ
刊名	macromolecules
	1996
卷号	29 期号:14 页码:4895-4903
关键词	ORDER-DISORDER TRANSITION BLOCK CO-POLYMERS DIBLOCK COPOLYMERS MOLECULAR-WEIGHT PHASE-EQUILIBRIA HOMOPOLYMER MIXTURES MELTS POLYSTYRENE SCATTERING
ISSN号	0024-9297
中文摘要	the change in the microphase separation transition (mst) temperature of a styrene-butadiene-styrene (sbs) triblock copolymer induced by the addition of polystyrene (ps) was investigated by small-angle x-ray scattering. it was found that the transition temperature was determined from the molecular weight (m(h)) of the added ps in relation to that of the corresponding blocks (m(a)) in the copolymer. the mst temperature decreased with added ps if m(h)/m(a) < 1/4, while it increased with added ps when m(h)/m(a) > 1/4 analysis of the theoretical expression based on the random phase approximation showed exactly the same tendency of change in the transition temperatures as that observed experimentally. the interaction parameter, chi(sb), obtained by nonlinear fitting of the scattering profiles of sbs/ps blends in the disordered state, was found to be a function of temperature and composition. composition fluctuations were found to exist in sbs/ps blends, increasing with increasing addition of ps but diminishing with increasing molecular weight of the added ps.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2010-12-22 ; 2011-06-09
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/25359]
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	Xie R,Li G,Liu CM,et al. Compositional dependence of the microphase separation transition in styrene-butadiene-styrene triblock copolymer/polystyrene blends[J]. macromolecules,1996,29(14):4895-4903.
APA	Xie R,Li G,Liu CM,&Jiang BZ.(1996).Compositional dependence of the microphase separation transition in styrene-butadiene-styrene triblock copolymer/polystyrene blends.macromolecules,29(14),4895-4903.
MLA	Xie R,et al."Compositional dependence of the microphase separation transition in styrene-butadiene-styrene triblock copolymer/polystyrene blends".macromolecules 29.14(1996):4895-4903.