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Controlled Bimodal Molecular‐Weight‐Distribution Polymers: Facile Synthesis by RAFT Polymerization |
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| Authors: | Jian Qin Dr Lifen Zhang Hongjuan Jiang Dr Jian Zhu Dr Zhengbiao Zhang Dr Wei Zhang Dr Nianchen Zhou Dr Zhenping Cheng Dr Xiulin Zhu |
| Institution: | 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 (P. R. China), Fax: (+86)?512‐65882787, Fax: (+86)?512‐65112796 |
| Abstract: | 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. |
| Keywords: | living radical polymerization molecular‐weight distribution polymers radical reactions RAFT |