Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.
Chemistry. 2012 May 7;18(19):6015-21. doi: 10.1002/chem.201103914. Epub 2012 Apr 4.
The RAFT agents RAFT-1 and RAFT-2 were used for RAFT polymerization to synthesize well-defined bimodal molecular-weight-distribution (MWD) polymers. The system showed excellent controllability and "living" characteristics toward both the higher- and lower-molecular-weight fractions. It is important that bimodal higher-molecular-weight (HMW) polymers and block copolymers with both well-controlled molecular weight (MW) and MWD could be prepared easily due to the "living" features of RAFT polymerization. The strategy realized a mixture of higher/lower-molecular-weight polymers at the molecular level but also preserved the features of living radical polymerization (LRP) of the RAFT polymerization.
RAFT 试剂 RAFT-1 和 RAFT-2 用于 RAFT 聚合以合成具有良好定义的双峰分子量分布（MWD）聚合物。该体系对高分子量（HMW）和低分子量两个分数均表现出极好的可控性和“活性”特征。重要的是，由于 RAFT 聚合的“活性”特征，很容易制备双峰高分子量（HMW）聚合物和具有良好控制分子量（MW）和 MWD 的嵌段共聚物。该策略在分子水平上实现了高分子量/低分子量聚合物的混合物，同时保留了 RAFT 聚合的活性自由基聚合（LRP）的特征。
