摘要
以过氧化苯甲酰（ＢＰＯ）为引发剂，ＳＢＳ分别与甲基丙烯酸甲酯（ＭＭＡ）、甲基丙烯酸丁酯（ＢＭＡ）及乙酸乙烯酯（ＶＡＣ）进行本体接枝共聚合。根据均聚物的生成量和聚合物的相态结构，认为ＳＢＳ防与ＭＭＡ（或ＢＭＡ）的反应机理与系山、伊田等的研究结果一致；ＳＢＳ与ＶＡｃ的反应机理是，ＢＰＯ·与ＶＡｃ生成ＰＶＡｃ链自由基，继而向ＳＢＳ主链转移。
The bulk graft copolymerization of methyl methacrylate(MMA) ,butylmethacrylate(BMA)and vinyl acetate (VAc) respectively onto styrene-butadiene-styrene block copolymer (SBS) was studied using benzoyl peroxide as initiator.It was considered that the reaction mechanism of MMA(or BMA) with SBS was in agreement with the results of literatures.The mechanism of VAc with SBS was the BPO·form ing the chain free radicals with VAc,then the free radicals transfered to the main chains of SBS.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1994年第3期170-171,共2页
China Synthetic Rubber Industry
关键词
丁苯
嵌段共物
SBS
MA
BMA
共聚
butadiene-styrene block copolymer
methyl methacrylate
butyl methacrylate
viny acetate
bulk polymerization
graft copolymerization
reaction mechanism
