高分子量端酰胺官能化顺丁橡胶的合成与性能研究

张秀慧; 董静; 李伟天; 李旭; 王凤; 刘恒; 张学全

doi:10.11777/j.issn1000-3304.2025.25104

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高分子量端酰胺官能化顺丁橡胶的合成与性能研究

研究论文 | 更新时间：2025-07-02

- 高分子量端酰胺官能化顺丁橡胶的合成与性能研究
- Synthesis and Performance Study of High-molecular-weight Amide End-functionalized cis-Polybutadiene Rubber
- 高分子学报 2025年页码：1-10
- 作者机构：
  
  1.青岛科技大学高分子科学与工程学院橡塑材料与工程教育部重点实验室山东省橡胶材料科学与工程高校实验室青岛 266000
  2.中国石油石油化工研究院兰州化工研究中心兰州 730060
- 作者简介：
  
  E-mail: fengwang@qust.edu.cn
- 基金信息：
  
  国家重点研发计划(2022YFC2603502);中国石油天然气股份有限公司科研项目(2020 B-2711)
- DOI：10.11777/j.issn1000-3304.2025.25104
  中图分类号：
- CSTR：32057.14.GFZXB.2025.7429
- 收稿日期：2025-04-17，
  
  录用日期：2025-05-27，
  
  网络出版日期：2025-07-02，
- 稿件说明：
移动端阅览
张秀慧, 董静, 李伟天, 李旭, 王凤, 刘恒, 张学全. 高分子量端酰胺官能化顺丁橡胶的合成与性能研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2025.25104

Zhang, X. H.; Dong, J.; Li, W. T.; Li, X.; Wang, F.; Liu, H.; Zhang, X. Q. Synthesis and performance study of high-molecular-weight amide end-functionalized cis-polybutadiene rubber. Acta Polymerica Sinica, doi: 10.11777/j.issn1000-3304.2025.25104
张秀慧, 董静, 李伟天, 李旭, 王凤, 刘恒, 张学全. 高分子量端酰胺官能化顺丁橡胶的合成与性能研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2025.25104 DOI： CSTR： 32057.14.GFZXB.2025.7429.

Zhang, X. H.; Dong, J.; Li, W. T.; Li, X.; Wang, F.; Liu, H.; Zhang, X. Q. Synthesis and performance study of high-molecular-weight amide end-functionalized cis-polybutadiene rubber. Acta Polymerica Sinica, doi: 10.11777/j.issn1000-3304.2025.25104 DOI： CSTR： 32057.14.GFZXB.2025.7429.

摘要

采用具有可控配位链转移聚合特征的催化体系Nd(vers)

/Al(

Bu)

H/Al

引发丁二烯聚合，利用聚合体系快速可逆的链转移反应及Al-Polymer键较高的反应活性，在分子链末端高效地引入了酰胺基团，实现了高分子量顺丁橡胶原位官能化的高效制备. 通过凝胶渗透色谱(GPC)、傅里叶变换红外光谱(FTIR)和示差扫描量热(DSC)表征了聚合物的结构，结果表明酰胺的引入使得聚合物链间产生了氢键作用. 与顺丁橡胶相比，在分子量和分子量分布基本一致的情况下，官能化顺丁橡胶的表面能和门尼黏度均有明显提升. 极性基团的引入使得填料在顺丁橡胶基体中的分散性改善，硫化胶的交联密度、强度和韧性均有提升，拉伸强度由19.6 MPa提高到了22.2 MPa. 本研究为原位合成官能化高分子量、高顺式-1

4含量的顺丁橡胶提供了一种简捷高效的策略，为顺丁橡胶的官能化及高值化应用提供了理论依据.

Abstract

Butadiene polymerization mediated by neodymium-based catalytic system with characteristics of controllable coordination chain transfer polymerization (CCTP) is reported herein. Due to the inherent nature of rapid and reversible chain transfer during the BD polymerization

polymer-Al bonds were able to be generated during the end of the polymerization

allowing amide groups inserting efficiently in to the

-end of the polymer chain

and thus achieving

in situ

functionalization of high molecular weight

cis

-polybutadiene rubber. The structure of the polymer was well characterized by GPC

FTIR and DSC. It was demonstrated that the introduction of amide groups led to the formation of hydrogen bonding interactions between the polymer chains. When comparing with the unfunctionalized counterpart

both the surface energy and Mooney viscosity were significantly increased. More importantly

significantly improved dispersity of fillers was demonstrated

which further resulted in enhanced crosslink density

tensile strength (from 19.6 MPa to 22.2 MPa) and toughness of the vulcanizate. Overall

this study provides a simple and efficient strategy for the

in situ

functionalization of high molecular weight

cis

-po

lybutadiene rubber while maintaining the high

cis

-1

4 content and high regularity of the mainchain

showing a great potential for large-scale industrialization.

关键词

Keywords

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