WLF Equation—the Special Temperature Dependence of Segment Motion

Ping-sheng HE

doi:10.14028/j.cnki.1003-3726.2002.02.011

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WLF Equation—the Special Temperature Dependence of Segment Motion

更新时间：2022-09-18

- WLF Equation—the Special Temperature Dependence of Segment Motion
- Polymer Bulletin Vol. 15, Issue 2, Pages: 75-78(2002)
- 作者机构：
  
  中国科学技术大学高分子科学与工程系，合肥　230026
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2002.02.011
  CLC：
- Published：2002-04，
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Ping-sheng HE. WLF Equation—the Special Temperature Dependence of Segment Motion. [J]. Polymer Bulletin 15(2):75-78(2002)
DOI：

Ping-sheng HE. WLF Equation—the Special Temperature Dependence of Segment Motion. [J]. Polymer Bulletin 15(2):75-78(2002) DOI： 10.14028/j.cnki.1003-3726.2002.02.011.

摘要

WLF 方程是特殊的运动单元－－－链段运动所服从的特殊温度依赖关系。链段运动时内能的变化是不重要的

主要发生的是熵的变化。原因是高分子的“大”

量变必然引起质变

量“大”引起的质变是新的结构参数“柔性”的产生

产生聚合物特有的橡胶高弹性

并具有自己特有的温度依赖关系－－－WLF 方程。

Abstract

WLF equation is the special temperature dependence of motion of segment---the special motion unit in polymer.The change of energy is not important in the motion of segment.The most important

alternatively

is the change of entropy.The reason is "giant" of macromolecule only

which causes a new parameter of structure---flexibility

its special temperature dependence of motion of segment---WLF equation and the special mechanical properties---rubber elasticity.

关键词

WLF 方程链段运动自由体积

Keywords

WLF equationSegmentFree volume

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Department of Physics,Wuhan University

Laboratory of Advanced Materials,Fudan University

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