Discussion on the Relationship between the Number-average Degree of Polymerization and Polymerization Mechanism in Polymerization Reaction Engineering

CHEN Tian-you

doi:10.14028/j.cnki.1003-3726.2024.23.153

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Discussion on the Relationship between the Number-average Degree of Polymerization and Polymerization Mechanism in Polymerization Reaction Engineering

更新时间：2024-02-06

- Discussion on the Relationship between the Number-average Degree of Polymerization and Polymerization Mechanism in Polymerization Reaction Engineering
- Polymer Bulletin Vol. 37, Issue 3, Pages: 395-399(2024)
- 作者机构：
  
  湖北大学材料科学与工程学院，武汉 430062
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2024.23.153
  CLC：
- Received：04 May 2023，
  
  Accepted：28 July 2023，
  
  Published：20 March 2024
- 稿件说明：
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陈天有. 聚合反应工程中数均聚合度与聚合反应机理关系的学习探讨. 高分子通报, 2024, 37(3), 395–399

Chen, T.Y. Discussion on the relationship between the number-average degree of polymerization and polymerization mechanism in polymerization reaction engineering. Polym. Bull. (in Chinese), 2024, 37(3), 395–399
陈天有. 聚合反应工程中数均聚合度与聚合反应机理关系的学习探讨. 高分子通报, 2024, 37(3), 395–399 DOI： 10.14028/j.cnki.1003-3726.2024.23.153.

Chen, T.Y. Discussion on the relationship between the number-average degree of polymerization and polymerization mechanism in polymerization reaction engineering. Polym. Bull. (in Chinese), 2024, 37(3), 395–399 DOI： 10.14028/j.cnki.1003-3726.2024.23.153.

摘要

数均聚合度与聚合反应机理关系是聚合反应工程分析的重点内容，也是《聚合反应工程基础》课程的难点之一。正确理解并掌握聚合反应机理以及操作方式对数均聚合度的影响，有助于学生对聚合反应机理、过程和产物特点的掌握以及类似工程问题的分析。本文针对教材中这部分内容缺少详细推导过程这一不足，分析数均聚合度与转化率之间的关系；主要探讨在活性链寿命很短、活性链寿命很长两种情况下，链转移反应对数均聚合度与转化率之间关系的影响，并给出详细的推演分析过程，旨在为教学提供参考并帮助学生加深理解与把握，提升学习兴趣。

Abstract

The relationship between the number-average degree of polymerization and polymerization mechanism is the key content of polymerization reaction engineering analysis

and is also one of the difficulties of the course “

Fundamentals of Polymerization Reaction Engineering

”. The understanding of the effect of operation and polymerization mechanism on the number-average degree of polymerization will help students to master the polymerization mechanism

process

product characteristics

and the analysis of similar engineering problems. Here

the relationship between the number-average degree of polymerization and the conversion is analyzed in light of the lack of a detailed derivation process. The effect of chain transfer reactions on the relationship between the number-average degree of polymerization and the conversion is mainly discussed in two cases of short and long active chain life

and a detailed derivation process is given to provide a reference for teaching and help students to deepen their understanding and grasp. The aim is to provide a reference for teaching

to help students to deepen their understanding

and to enhance their learning interests.

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references

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