Determination of Polymer-Solvent Interaction Parameter and Effective Network Chain Density of Polybutadiene Rubber

Yin Jinghua and Li BincaiChangchun Institute of Applied Chemistry; Academia Sinica

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Determination of Polymer-Solvent Interaction Parameter and Effective Network Chain Density of Polybutadiene Rubber

更新时间：2025-12-16

- Determination of Polymer-Solvent Interaction Parameter and Effective Network Chain Density of Polybutadiene Rubber
- CIESC Journal Issue 1, (1983)
- 作者机构：
  
  中国科学院长春应用化学研究所,中国科学院长春应用化学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 March 1983，
  
  Published：25 March 1983
- 稿件说明：
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Yin Jinghua and Li BincaiChangchun Institute of Applied Chemistry, Academia Sinica. Determination of Polymer-Solvent Interaction Parameter and Effective Network Chain Density of Polybutadiene Rubber[J]. CIESC Journal, 1983, (1).
DOI：

Yin Jinghua and Li BincaiChangchun Institute of Applied Chemistry, Academia Sinica. Determination of Polymer-Solvent Interaction Parameter and Effective Network Chain Density of Polybutadiene Rubber[J]. CIESC Journal, 1983, (1). DOI：

摘要

本文用顺丁橡胶的纯胶硫化胶和炭黑硫化胶

通过溶胀-拉伸实验

测定了顺丁橡胶的高聚物-溶剂相互作用参数μ.结果表明μ是溶胀网络中橡胶体积分数v_r的函数μ=μ_o+βv_r.得到的μ_o.值与在稀溶液中(v_r→0)用渗透压、光散射法得到的μ_o值很接近.不同v_r时μ值的求得

为测定顺丁橡胶硫化胶的有效网链密度提供了途径.并深入研究了硫化胶的有效网链密度对300%定伸强度、抗张强度、抗撕裂、伸长率、硬度、弹性、静态模量和动态模量等重要性质的影响.

Abstract

The polymer-solvent interaction parameter μ for poly (cis-1

4-butadiene) was determined by stress-strain measurements of swollen gum and black vulcanizates. It is found that μ is a function of vr

μ = μ0+ βvr. The μ0 valuethus obtained is consistent with those determined by osmometry and light-scattering. The effective network chain densities of vulcanizates with different degree of curing were calculated by Flory-Rehner equation. The influence of effective network chain density for poly (cis-1

4-butadiene) on vulca-nizate properties

such as tensile stress at 300% elongation

tensile strength

tear strength

ultimate elongation and so on were studied.

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