GROUP CONTRIBUTION METHOD FOR ESTIMATION INTERNAL PRESSURE AND NEW SOLUBILITY PARAMETER FOR POLYMERS

LI Zhonghui; LING Zheng; YING Xugen; LIU Guojie

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GROUP CONTRIBUTION METHOD FOR ESTIMATION INTERNAL PRESSURE AND NEW SOLUBILITY PARAMETER FOR POLYMERS

更新时间：2025-12-10

- GROUP CONTRIBUTION METHOD FOR ESTIMATION INTERNAL PRESSURE AND NEW SOLUBILITY PARAMETER FOR POLYMERS
- CIESC Journal Issue 12, (2002)
- 作者机构：
  
  华东理工大学化学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 2002，
  
  Published：25 December 2002
- 稿件说明：
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LI Zhonghui, LING Zheng, YING Xugen, et al. GROUP CONTRIBUTION METHOD FOR ESTIMATION INTERNAL PRESSURE AND NEW SOLUBILITY PARAMETER FOR POLYMERS[J]. CIESC Journal, 2002, (12).
DOI：

LI Zhonghui, LING Zheng, YING Xugen, et al. GROUP CONTRIBUTION METHOD FOR ESTIMATION INTERNAL PRESSURE AND NEW SOLUBILITY PARAMETER FOR POLYMERS[J]. CIESC Journal, 2002, (12). DOI：

摘要

将298.15 K时各种液态聚合物的内压平方根λ和重复单元的摩尔体积Vm的乘积对它们的van derWaals体积作图时

发现是一条通过坐标原点的直线.这意味着聚合物的λVm具有良好的基团加和性.据此

建立了一个能满意地预测聚合物内压的基团贡献法.结合Small的基团摩尔引力常数

该基团贡献法也能用来计算液态聚合物在298.15 K时的新溶解度参数值.

Abstract

The products of the square - root of internal pressure A and the molar volume of the repeated unit Vm for various polymeric liquids at 298.15 K are plotted against their van der Waals volumes . A straight line through the origin of coordinates is obtained. This means that the A Vm of polymers has good group additivity . Therefore

a method of group contribution which can be used to predict the internal pressure of polymeric liquids is established. Combining with Small’s molar- attraction constants

the values of new solubility parameter defined by the authors’ previous work for various polymers at 298.15 K can be obtained from this method.

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