Rheology of poly(acrylonitrile-co-acrylamide)/1-butyl-3-methylimidazolium chloride solutions with various molecular weights，ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）-中国聚合物网,论文下载

Rheology of poly(acrylonitrile-co-acrylamide)/1-butyl-3-methylimidazolium chloride solutions with various molecular weights

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rheology poly(acrylonitrile-co-acrylamide) ionic liquids molecular weight intrinsic
viscosity

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1145K

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分子表征

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ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）

简介：

Shearrheologyofpoly(acrylonitrile-co-acrylamide)(poly(AN-co-AM))solutionswithdifferentaveragemolecularweightsin1-butyl-3-methylimidazoliumchloride([BMIM]Cl)wasinvestigatedinalargerangeofconcentrations(0.1wt%~14wt%)attemperature80°C.Theviscositydataobtainedcanbereducedtoamasterplotofspecificviscosityηspagainstoverlapparameter(concentrationc×intrinsicviscosity[η])forallpoly(AN-co-AM)solutions.Theexponentsintheηsp~c[η]powerlawwerefoundtobe1,1.3and3.9fordilute,semidiluteunentangledandentangledregimes,respectively.AccordingtothedeGennes‘scalingtheory,theseexponentsindicatethatthepoly(AN-co-AM)behavesasflexiblepolymersinagoodsolvent.Mark-Houwinkexponentwasdetermined:itwasmuchhigherthantheθ-value0.5.Thisalsoindicates[BMIM]Clisagoodsolventforpoly(AN-co-AM).

作者：

ZHU Xinjun, WANG Xiao, CHEN Xun, ZHANG Yumei, WANG Huaping

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2011-09-27 16:06:03

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