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

ZHENG Changren; PAN Hongqing; LIN Shenghe; QIAN Jun; DUAN Qin

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

Papers | Updated：2021-06-21

- INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)
- INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)
- 高分子科学（英文版） 1987年5卷第2期页码：169-173
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- 纸质出版：1987-06-20
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ZHENG Changren, PAN Hongqing, LIN Shenghe, 等. INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)[J]. 高分子科学（英文版）, 1987,5(2):169-173.

ZHENG Changren, PAN Hongqing, LIN Shenghe, et al. INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)[J]. 1987, 5(2): 169-173.
ZHENG Changren, PAN Hongqing, LIN Shenghe, 等. INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)[J]. 高分子科学（英文版）, 1987,5(2):169-173. DOI：

ZHENG Changren, PAN Hongqing, LIN Shenghe, et al. INVESTIGATION ON THE RELATIONSHIP BETWEEN INTRINSIC VISCOSITY AND MOLECULAR WEIGHT OF POLY (VINYL CHLORIDE-DIETHYL MALEATE)[J]. 1987, 5(2): 169-173. DOI：

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]=1.99×10-3M0.87 (ml/g

at 25℃

in cyclohcxanone) For the copolymer solution in THF

the second virial coefficient A2 decreases as the molecular weight increases.The relationship is A2=2 slope (MnRT)-1/2.

Abstract

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]=1.99×10-3M0.87 (ml/g

at 25℃

in cyclohcxanone) For the copolymer solution in THF

the second virial coefficient A2 decreases as the molecular weight increases.The relationship is A2=2 slope (MnRT)-1/2.

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