INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)

被引：0
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作者：
郑昌仁
潘洪庆
林声和
钱均
段勤
机构：
[1] Department of Chemical Engineering Nanjing Chemical Engineering Institute
[2] Department of Chemical Engineering Nanjing Chemical Engineering Institute
来源：
Chinese Journal of Polymer Science | 1987年 / 02期
关键词：
Intrinsic viscosity; Molecular Weight; Poly(vinyl chloride-diethyl maleate); Chloro-Maleate Resin; Osmotic pressure; Mark-Houwink parameter;
D O I：
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学科分类号：
摘要：
A poly （vinyichloride-diethyl maleate） copolymer has been fractionated by repeated precipitation method. All fractions and the unfractionated sample have been characterized by viscometry, dynamic osmometry, Zimm static osmometry, light scattering and gel permeation chromatography. After correction for polydispersity, a [η]～M relationship for monodisperse polymer solutions has been obtained:[η]=1.99×10;M;（ml/g, at 25℃, in cyclohcxanone）For the copolymer solution in THF, the second virial coefficient A;decreases as the molecular weight increases. The relationship isA;=2 slope (（?）;RT);.
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页码：169 / 173
页数：5
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