摘要
The polymerization of styrene is monitored by pyrene excimer formation. The ratio of monomer to excimer intensities ( I m/ I e) of pyrene increases as polymerization proceeds. The increase of I m/ I e is ascribed to the increase of microviscosity surrounding the probes forming excimer during polymerization. The linear relationship between the changing rate of I m/ I e and the polymerization rate of styrene is obtained. Therefore, I m/ I e may be used to monitor the progress of the polymerization of styrene.
采用芘激基缔合物荧光探针技术研究了苯乙烯聚合反应过程．芘单体与激基缔合物荧光强度的比值（Ｉｍ／Ｉｅ） 随着苯乙烯聚合反应的进行而增加．Ｉｍ／Ｉｅ 的变化可以归因于聚合体系反应过程中探针微环境粘度的增加．由此获得了Ｉｍ／Ｉｅ 的变化速率与聚合反应速率之间的线性关系．结果表明，芘探针荧光强度比值Ｉｍ／Ｉｅ 可以用于监测苯乙烯聚合反应进程．
