Copolymerization of St and St-POSS with and without 4-MeSt was carried out with half-titanocenes of Cp^*TiCl₃ catalyst and MMAO cocatalyst. The activity of catalyst and St-POSS content increased by the addition of 4-MeSt as the 3^rd monomer. The characteristic crystalline peak of St/St-POSS copolymer was altered by incorporating of 4-MeSt. With increasing 4-MeSt contents, the glass transition temperature of the polymers increased and the thermal stability was improved. The molecular weight and PDI of the polymers were not changed significantly with the incorporation of 4-MeSt.

中文翻译：

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第三次添加单体对苯乙烯/苯乙烯基-多面体低聚倍半硅氧烷（POSS）共聚的影响

在有和没有4-MeSt的情况下，St和St-POSS与Cp ^* TiCl ₃催化剂和MMAO助催化剂的半茂钛茂进行共聚。催化剂和St-POSS含量的活性增加通过加入4- MEST的作为3^次单体。通过掺入4-MeSt可以改变St / St-POSS共聚物的特征结晶峰。随着4-MeSt含量的增加，聚合物的玻璃化转变温度升高，并且热稳定性得到改善。引入4-MeSt后，聚合物的分子量和PDI没有明显变化。