Exploration of Ways to Teach Polymer Glass Transition under the Framework of Glass Physics

Biao ZUO

doi:10.14028/j.cnki.1003-3726.2022.03.009

您当前的位置：

首页 >

文章列表页 >

Exploration of Ways to Teach Polymer Glass Transition under the Framework of Glass Physics

更新时间：2022-09-09

- Exploration of Ways to Teach Polymer Glass Transition under the Framework of Glass Physics
- Polymer Bulletin Vol. 35, Issue 3, Pages: 70-72(2022)
- 作者机构：
  
  浙江理工大学化学系,浙江省高分子材料表界面科学重点实验室,杭州 310018
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.03.009
  CLC：
- Published：20 March 2022，
  
  Received：23 December 2020，
  
  Revised：04 May 2021，
扫描看全文
Biao ZUO. Exploration of Ways to Teach Polymer Glass Transition under the Framework of Glass Physics. [J]. Polymer Bulletin 35(3):70-72(2022)
DOI：

Biao ZUO. Exploration of Ways to Teach Polymer Glass Transition under the Framework of Glass Physics. [J]. Polymer Bulletin 35(3):70-72(2022) DOI： 10.14028/j.cnki.1003-3726.2022.03.009.

摘要

玻璃化转变是高分子物理教学中的重要内容。一些高分子物理教科书将聚合物玻璃化转变简单描述为玻璃到高弹态的力学转变

可能局限了学生对玻璃化转变重要科学问题认识的深度、广度和想象空间

甚至造成一些学生认为只有聚合物才存在玻璃化转变。笔者注意到了这一问题

考虑将聚合物玻璃化转变放在非晶物理框架下进行讲授;强调玻璃化转变是非晶物质的共性特征

突出对玻璃化转变是动力学减缓引起的过冷液态到固体玻璃态之间转变的现象本质的介绍。在此认识基础上

进而介绍聚合物玻璃化转变的特殊之处—玻璃到高弹态的力学转变

希望可以帮助学生形成对聚合物玻璃化转变全面而准确的认识。

Abstract

Glass transition is an important concept in the teaching of polymer physics. In some polymer physics textbook

the glass transition is described as the transition temperature in which the materials were transformed from glassy to the rubbery state. Such definition

mainly from the variation of mechanical property induced by temperature

is easily understandable

but however miss the key and essential points of the glass transition phenomenon

even leading the student having false impression that glass transition is a unique property of polymer. To this context

we tried to teach glass transition under the framework of glass physics; describe the glass transition as a general feature of amorphous materials and emphasizes the nature of glass transition — a transition from supercooled liquid to solid glass induced by the mobility freeze-in. Then

the glass transition of polymer and the remarkable changes in mechanical properties were introduced as a special attention. We hope that this disparate way of teaching polymer glass transition could help students to establish comprehensive and precise understandings on the phenomenon of glass transition and polymer glass transition.

关键词

玻璃化转变高分子物理教学非晶物理

Keywords

Glass transitionPolymer physicsGlass physics

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Molecular Dynamics Simulation Undergraduate Experiment on Glass Transition of Polymer

Application of Modulated Differential Scanning Calorimetry in Polymer Research

Combining the Daily Lives in Polymer Physics Education——in the Case of Glass Transition

The Study on Conformational Changes of Polymers during Glass Transition by Infrared Spectrum Method

The Studies on the Physics of Polymer Single Chain by Single Molecule Fluorescence Techniques

Related Author

No data

Related Institution

College of Materials Science and Technology,Beijing University of Chemical Technology

State Key Laboratory of Fine Chemicals, Key Laboratory of Polymer Science and Engineering of Liaoning Province, Liaoning Engineering Laboratory of Advanced Polymer Materials, Department of Polymer Science and Engineering, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology

School of Materials Science and Engineering, Shandong University of Science and Technology

School of Material Science & Engineering, Tianjin University

Institute of Chemistry, Chinese Academy of Sciences

⁰