Ambient temperature‐initiated anionic polymerization has generated branched polystyrenes of varying molecular weights and architectures by inclusion of a distyryl branching comonomer into a conventional sec‐Butylithium‐initiated polymerization of styrene. Primary chain length control within the branched polymers, and restriction of the branching points to varying segments of the primary chains, led to variations of glass transition temperature with no direct correlation to the branched polymer molecular weight but a strong relationship to the length of individual chains comprising the branched macromolecules.

中文翻译：

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在环境温度下使用支链阴离子聚合对聚苯乙烯物理性质进行结构控制

环境温度引发的阴离子聚合通过将二苯乙烯基支化共聚单体纳入常规的仲丁基锂引发的苯乙烯聚合中，生成了分子量和结构各异的支化聚苯乙烯。控制支链聚合物内的主链长度，以及将支点限制在主链的不同链段上，导致玻璃化转变温度发生变化，与支链聚合物分子量没有直接关系，但与单个链的长度有很强的关系包含支链的大分子。