单词aryl-group
网络: 芳基；芳香基
Specifically disclosed is a polycarbonate containing a group having a siloxane structure at an end and an aryl group at a specific ratio.
本发明是在末端以特定的比例含有具有硅氧烷结构的基团和芳基的聚碳酸酯。
R2 is an aryl group or a nitrogen atom-containing heterocyclic group each of which may have one or more substituents;
R2是芳基或含氮原子的杂环基团，它们各自可以具有一个或多个取代基；