Topochemical polymerization is a polymerization method performed by monomers aligned in the crystal state. In this process, the monomers are crystalized and polymerized under external stimuli such as heat, light, or pressure. Compared to traditional polymerization, the movement of monomers was confined by the crystal lattice in topochemical polymerization, giving rise to polymers with high crystallinity, tactility, and purity. Topochemical polymerization can also be used to synthesize unique polymers such as polydiacetylene that are otherwise hard to prepare.
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