高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

氯化反式丁二烯-异戊二烯共聚橡胶的结构调控

邢宇航,王莉,赵季若,邵华锋,贺爱华   

  1. 青岛科技大学高分子科学与工程学院，高性能有机光学聚合物与先进制造技术全国重点实验室，橡塑材料与工程教育部/山东省橡塑材料与工程重点实验室
  • 收稿日期:2025-07-04 修回日期:2025-09-28 网络首发:2025-10-14 发布日期:2025-10-14
  • 通讯作者: 邵华锋 E-mail:hfshao@qust.edu.cn
  • 基金资助:
    国家重点研发计划[批准号：2022YFB3704700(2022YFB3704702)]，国家自然科学基金（批准号：52473096），山东省重大科技创新工项目(批准号：2021CXGC010901)及泰山学者工程专项经费资助

Structure regulation of chlorinated trans-1,4-butadiene-co-isoprene rubber

XING Yuhang, WANG Li, ZHAO Jiruo, SHAO Huafeng, HE Aihua   

  1. Shandong Key Laboratory of High Performance Polyolefin Materials and Recycling, Key Laboratory of Rubber-Plastics(Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology
  • Received:2025-07-04 Revised:2025-09-28 Online First:2025-10-14 Published:2025-10-14
  • Contact: SHAO Huafeng E-mail:hfshao@qust.edu.cn
  • Supported by:
    Supported by the National Key Research and Development Program of China[No.2022YFB3704700(2022YFB3704702)], the National Natural Science Foundation of China(No.52473096), the Major Scientific and Technological Innovation Project of Shandong Province, China(No.2021CXGC010901) and the Taishan Scholar Program, China

PDF (PC)

摘要： 反式丁二烯-异戊二烯共聚橡胶(TBIR)中可参与氯化反应的结构复杂，其氯化产物氯化反式丁二烯-异戊二烯共聚橡胶(CTBIR)具有橡胶弹性和极性主要取决于分子链中双键和烯丙基氯两种结构. 本文从氯化反应条件的控制，包括氯化反应时间、温度、氯气的通入方式以及自由基捕捉剂和紫外光辐照等因素，实现对CTBIR中双键和烯丙基氯结构的调控. 高的起始反应温度可以保留TBIR中的双键含量，但氯含量降低. 循环通入氯气的方式有利于在获得高氯含量的同时保持较高的双键含量. 氯化反应中加入TEMPO有利于保持CTBIR中的双键含量. CTBIR中的烯丙基氯结构含量可以通过反应温度和时间以及TEMPO的加入来进行调控. 该氯化反应产物结构的调控可以为橡胶的氯化反应及氯化产物的调控提供依据，并为CTBIR后续的结构修饰提供反应位点的选择.

关键词: 氯化反应, 反式丁二烯-异戊二烯共聚橡胶, 烯丙基氯, 结构调控, 分子量

Abstract: The structure of trans butadiene-isoprene copolymer rubber (TBIR) that can participate in chlorination reaction is complex, and its product chlorinated trans butadiene-isoprene copolymer rubber (CTBIR) can achieve rubber elasticity and polarity mainly depending on the double bond and allyl chloride structures. This article aims to regulate the double bond and allyl chloride structure in CTBIR by controlling the chlorination reaction conditions, such as chlorination reaction time, temperature, different ways of passing chlorine gas, free radical scavengers, and UV irradiation. A high initial reaction temperature can retain the double bond content in CTBIR, but reduce the chlorine content. The method of circulating chlorine gas input is beneficial for achieving high chlorine content while maintaining a high double bond content. Adding TEMPO is beneficial for maintaining the double bond content in CTBIR. The allyl chloride structure in CTBIR can be regulated by reaction temperature and time, as well as the addition of TEMPO. The regulation of the structure of the chlorination reaction product can provide a basis for the halogenation reaction of rubber. The regulation of halogenation products can provide the selection of reaction sites for the subsequent structural modification of CTBIR.

Key words: Chlorination, trans-1,4-Butadiene-co-isoprene rubber, Allyl chlorine, Structure regulation, Molecular weight

中图分类号: 

TrendMD: