Sequence-Controlled Polymers with Furan-Protected Maleimide as a Latent Monomer
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- 作者：Yuxuan Ji ; Liuqiao Zhang ; Xue Gu ; Prof. Dr. Wei Zhang ; Prof. Dr. Nianchen Zhou ; Prof. Dr. Zhengbiao Zhang and Prof. Dr. Xiulin Zhu
- 刊名：Angewandte Chemie International Edition
- 出版年：2017
- 出版时间：February 20, 2017
- 年：2017
- 卷：56
- 期：9
- 页码：2328-2333
- 全文大小：1954K
- ISSN：1521-3773
文摘
Herein, a novel methodology for preparing sequence-controlled polymers is illustrated by using a latent monomer, furan protected maleimide (FMI). At 110 °C, FMI is deprotected by retro Diels–Alder (rDA) reaction, and the released MI is immediately involved in the cross-polymerization with styrene (St) to deliver heterosegments. At 40 °C the rDA reaction does not proceed, therefore homo-poly(styrene) segments are produced. By implementing programmable temperature changes during polymerization of St and FMI, “living” polymers with tailored a sequence are created. A ternary copolymerization produces complex sequences as designed. Alkynyl-functionalized FMI, used as a latent monomer, leads to the desirable placement of functional groups along the polymer chain. This latent-monomer-based strategy opens a new avenue for fabricating sequence-controlled polymers.