基于烯烃复分解反应的高乙烯基聚丁二烯橡胶酯基官能化及其羧酸型离聚体的阻尼性能  

Ester functionalization of high vinyl polybutadiene rubber by olefin metathesis and damping performance of its carboxylate ionomers

作　　者：赵相帅 牛志彬 于广水[1] 华静[1] ZHAO Xiang-shuai;NIU Zhi-bin;YU Guang-shui;HUA Jing(Key Laboratory of Rubber-plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266011,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266011

出　　处：《合成橡胶工业》2020年第5期423-423,共1页China Synthetic Rubber Industry

基　　金：Supported by Natural Science Foundation of Shandong Province(ZR 2016 EMM 03)。

摘　　要：以高乙烯基聚丁二烯橡胶(HVBR)为基体,采用过氧甲酸法制备环氧化高乙烯基聚丁二烯(EHVBR)及第1代Grubbs催化剂,以甲基丙烯酸甲酯(MMA)为改性剂,利用交叉烯烃复分解对EHVBR酯基官能化,得到酯基化的EHVBR(EHVBR-g-MMA),并与NaOH皂化反应制备EHVBR羧酸型钠离聚体。结果表明,EHVBR的环氧化反应发生在主链双键,官能度为13.0%;EHVBR-g-MMA的酯基官能度最高可达1.4%。该方法既可保证HVBR基体在烯烃复分解反应过程中相对分子质量不降低,又可弥补其他接枝方法导致凝胶含量升高的缺点。High vinyl polybutadiene rubber(HVBR)is regarded as a preferred rubber damping material due to outstanding aging resistance,low heat generation and a high loss factor(tanδ)near 0℃more close to room temperature compared with other rubber materials.Upon the further increase in the tanδat high temperature,the damping performance of the rubber materials is significantly improved.For ionomers,the multiion pairion cluster structures can dissipate a substantial amount of energy by reiterated destruction and reconstruction when subjected to alternating stress.In this study,we employed building multiion pairion HVBR’s ionomers in promise to develop as a novel rubber damping material.

关 键 词：高乙烯基聚丁二烯橡胶 烯烃复分解 离聚体 环氧化 阻尼性能 

分 类 号：TQ333.1[化学工程—橡胶工业]