【摘要】 本文阐述了ｎ－ＢｕＬｉ／ｔ－ＢｕＯＫ引发体系溶液了苯共聚的“多活性种互换”模型； 重点分析了钾活性种在本体系中的动力学行为；指出钾活性种不仅增长苯乙烯而且增 长丁二烯；对增长丁二烯来说，丁苯共聚时钾活性种的活性是锂活性种的九倍以上； 本文推导了共聚组成方程式，指出了表观竞聚率的复杂性，并根据我们的实验结果， 计算了几种情况的平均表观竞聚率。更多还原

【Abstract】 The presentation decribes an "exchange model" between multiple reactive species initiated n-BuLi/t-BuOK in S-B solution copolymerization. The kinetic behaviour of potassium reactive species has been particularly elucidated; it has been pointed out that the potassium reactive species can either propagate the styrene or the butadienc, and the growing activity for butadiene by pota- ssium reactive species is nine times more than that by the lithium reactive species. According to the postulated "exchange model", a novel copolymer composition equation has been derived. The imp1ication of the apparent mono- mer reactive ratio has been demonstrated, and a set of mean apparent m. r. r. has been calculated from the experimenta1 data obtained at various K/Li ratios.更多还原