摘要
测定了ＢＡ与ＳＢＳ接枝共聚的链转移常数。分别考察了ＭＭＡ与ＳＢＳ、ＢＡ与ＳＢＳ接枝共聚反应的差异，并对ＭＭＡ、ＢＡ与ＳＢＳ多元接枝共聚情况进行分析。结果表明：ＭＭＡ的链转移常数比ＢＡ的大一个数量级，在ｍ（ＢＡ）／ｍ（ＭＭＡ＋ＢＡ）＜３０％的范围内，单体转化率、接枝率及接枝效率随ＢＡ用量的增加而增大。
In this paper,chain transfer constants of graft copolymerization of BA on SBS were determin ed The graft copolymerization of MMA and BA on SBS was investigated The result showed that chain transfer constants of MMA were about 10 times higher than that of BA,and in the range of m (BA)/ m (MMA+BA)<30%,the conversion,grafting rate and grafting efficiency increased with increasing amount of BA used
出处
《石油化工》
EI
CAS
CSCD
北大核心
1998年第9期648-652,共5页
Petrochemical Technology
关键词
MMA
BA
SBS
接枝共聚
BA,SBS,graft copolymerization,degree of grafting
