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一个形状持久的宏循环的固态光聚合,在一个单晶中含有两个1,8-二甲单元

Ming Li1, A Dieter Schlüter, Junji Sakamoto

  • 1Department of Materials, Laboratory of Polymer Chemistry, ETH Zürich, Wolfgang-Pauli Strasse 10, CH-8093 Zürich, Switzerland.

Journal of the American Chemical Society
|June 15, 2012
PubMed
概括

研究人员开发了一种新的聚合方法,使用宏环单体. 这一过程产生了可以在温和条件下去聚合的刚性棒聚合物,为先进材料提供了潜力.

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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...