Abstract
It has been challenging for preparing large-size polymer crystals from direct solution self-assembly process because of their high molecular weight, polydispersity, complex and strong intermolecular interactions. Topochemical polymerization is an important tool for synthesizing polymers in solid state, which exhibit advantages of free-solvent, environment-friendly, high yield in stereo and regional reaction as well as possibly realizing the crystal-to-crystal transformation, and would be a promising solution. In this review, we systematically summarized the molecule systems that could achieve corresponding polymer crystals through topochemical polymerization, including olefins, diacetylenes, azide-alkynes, fullerene and their derivatives, and discussed their reaction characteristics and requirements. Finally, we briefly discussed the basic characterization techniques and promising application fields of polymer crystals, and also the existing challenges and opportunities in the field of topochemical polymerization.
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