过氧化氢蒎烷对丁苯橡胶聚合的影响

王志勇　 高增亮　

摘　要：研究了过氧化氢蒎烷(PHP)对丁苯橡胶聚合的影响。与过氧化氢二异丙苯(DIP)引发聚合的对比结果表明，PHP的催化活性要比DIP的高，同样纯度的引发剂，PHP质量分数为DIP的54％时二者具有相同的引发效果，而且对所制备胶乳性能的影响相近。用PHP制得的SBR1502橡胶的相对分子质量分布和物理机械性能与用DIP制备的接近。PHP与DIP混合引发剂不影响聚合速率。
关键词：丁苯橡胶；过氧化氢蒎烷；过氧化氢二异丙苯；聚合速率；相对分子质量分布；物理机械性能
分类号：TQ333.1　文献标识码：B
文章编号：1000-1255(2001)03-0133-03

Effect of pinane hydroperoxide on the polymerization of SBR 1502

Wang Zhiyong（Rubber Factory of Qilu Petrochemical Co., Ltd., Zibo 255438, China）　
Gao Zengliang（Rubber Factory of Qilu Petrochemical Co., Ltd., Zibo 255438, China）　

Abstract：The effect of pinane hydroperoxide (PHP) on the polymerization of SBR 1502 was studied. The results showed that PHP had higher catalytic activity than that of diisopropylbenzene hydroperoxide(DIP), and 54% (mass fraction) PHP had the same initiation effect compared with that of 100% DIP. The effect of PHP on properties of SBR latex was similar to DIP. The Mw/Mn and properties of SBR 1502 manufactured by PHP and DIP were approximate. The mixture of PHP and DIP had no influence on polymerization rate.
Keywords：styrene - butadiene rubber; pinane hydroperoxide; diisopropylbenzene hydroperoxide;polymerization rate; relative molecular mass distribution; mechanical property