Experimental Teaching Reform of Measuring the Molecular Weight of Polymer by Viscosity Method

Cong-de QIAO; Fu-yan HE; Zhi-zhou YANG; Ying-kai LIU; Jin-shui YAO

doi:10.14028/j.cnki.1003-3726.2021.09.009

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Experimental Teaching Reform of Measuring the Molecular Weight of Polymer by Viscosity Method

更新时间：2022-08-30

- Experimental Teaching Reform of Measuring the Molecular Weight of Polymer by Viscosity Method
- Polymer Bulletin Vol. 34, Issue 9, Pages: 74-78(2021)
- 作者机构：
  
  齐鲁工业大学(山东省科学院)材料科学与工程学院,济南 250353
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2021.09.009
  CLC：
- Published：20 September 2021，
  
  Received：13 April 2020，
  
  Revised：01 July 2021，
扫描看全文
Cong-de QIAO, Fu-yan HE, Zhi-zhou YANG, Ying-kai LIU, Jin-shui YAO. Experimental Teaching Reform of Measuring the Molecular Weight of Polymer by Viscosity Method. [J]. Polymer Bulletin 34(9):74-78(2021)
DOI：

Cong-de QIAO, Fu-yan HE, Zhi-zhou YANG, Ying-kai LIU, Jin-shui YAO. Experimental Teaching Reform of Measuring the Molecular Weight of Polymer by Viscosity Method. [J]. Polymer Bulletin 34(9):74-78(2021) DOI： 10.14028/j.cnki.1003-3726.2021.09.009.

摘要

粘度法是表征聚合物分子量的常用方法之一

具有操作方便、设备简单、实验精度高、分子量适用范围宽等优点

在工业生产和科学研究中得到了广泛应用。“粘度法测聚合物的分子量”是高分子物理实验中一个非常重要的实验项目。传统的粘度法教学实验通常只是孤立地测试聚合物的分子量

没有考虑其影响因素

实验内容单一

缺乏系统性。本文通过对该实验原有内容的设计扩充

将传统的验证性实验项目转变为综合性实验项目

使学生能更加深入地理解粘度法的原理及应用

激发了学生的学习热情

教学效果良好。

Abstract

Viscosity method is one of the commonly used methods to characterize the molecular weight of polymer. It has the advantages of convenient operation

simple equipment

high experimental accuracy

wide range of molecular weight application

and it has been widely used in industrial production and scientific research. The experiment project of "Measuring the molecular weight of polymer by viscosity method" is an important item in the experiments of polymer physics. The traditional viscosity teaching experiment is only to determine the molecular weight of polymer separately without considering its influencing factors. The experiment content is single and lacks of systematicness. In this paper

the traditional confirmatory experimental item is transformed into comprehensive one through the design and expansion of the original experiment content. It is helpful for students to understand the principle and application of the viscosity method more deeply

understand the formation mechanism of different polymer crystalline forms more vividly

and stimulate their enthusiasm for learning

and have a good teaching results.

关键词

粘度法验证性实验综合性实验教学改革

Keywords

Viscosity methodConfirmatory experimentComprehensive experimentTeaching reform

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Related Institution

School of Chemical and Material Engineering, Jiangnan University

School of Materials Science and Engineering, Liaocheng University

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School of Materials and Energy, Guangdong University of Technology

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