Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture

	Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture
	Sun ZY ; Yang JA ; Jiang W ; An LJ ; Jiang ZH ; Wu ZW
刊名	polymer
	2002
卷号	43 期号:14 页码:4047-4054
关键词	CRITICAL SOLUTION TEMPERATURE FLOWING POLYMER-SOLUTIONS ANGLE NEUTRON-SCATTERING CLOSED MISCIBILITY GAPS POLY(VINYL METHYL-ETHER) POLYVINYL METHYL-ETHER) CRITICAL FLUCTUATIONS BLENDS POLYSTYRENE DIAGRAMS
ISSN号	0032-3861
通讯作者	an lj
中文摘要	in the framework of lattice fluid model, the gibbs energy and equation of state are derived by introducing the energy (e-s) stored during flow for polymer blends under shear. from the calculation of the spinodal of poly(vinyl methyl ether) (pvme) and polystyrene (ps) mixtures, we have found the influence of e., an equation of state in pure component is inappreciable, but it is appreciable in the mixture. however, the effect of e, on phase separation behavior is extremely striking. in the calculation of spinodal for the pvme/ps system, a thin, long and banana miscibility gap generated by shear is seen beside the miscibility gap with lower critical solution temperature. meanwhile, a binodal coalescence of upper and lower miscibility gaps is occurred. the three points of the three-phase equilibrium are forecasted. the shear rate dependence of cloud point temperature at a certain composition is discussed. the calculated results are acceptable compared with the experiment values obtained by higgins et at. however, the maximum positive shift and the minimum negative shift of cloud point temperature guessed by higgins are not obtained, furthermore, the combining effects of pressure and shear on spinodal shift are predicted.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000176030500025
公开日期	2010-11-03
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/18537]
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	Sun ZY,Yang JA,Jiang W,et al. Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture[J]. polymer,2002,43(14):4047-4054.
APA	Sun ZY,Yang JA,Jiang W,An LJ,Jiang ZH,&Wu ZW.(2002).Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture.polymer,43(14),4047-4054.
MLA	Sun ZY,et al."Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture".polymer 43.14(2002):4047-4054.