Photoregulated Living Supramolecular Polymerization Established by Combining Energy Landscapes of Photoisomerization and Nucleation–Elongation Processes
作者:Mizuki Endo、Tomoya Fukui、Sung Ho Jung、Shiki Yagai、Masayuki Takeuchi、Kazunori Sugiyasu
DOI:10.1021/jacs.6b08145
日期:2016.11.2
contribution of conventional living polymerization to polymer science assures that living supramolecular polymerization will also lead to a variety of novel phenomena and applications. However, the monomer scope still remains limited in terms of the self-assembly energy landscape; a kinetic trap that retards spontaneous nucleation has to be coupled with a supramolecular polymerization pathway, which is challenging
传统活性聚合对聚合物科学的重大贡献确保活性超分子聚合也将导致各种新现象和应用。然而,就自组装能源格局而言,单体范围仍然有限;阻止自发成核的动力学陷阱必须与超分子聚合途径相结合,这是通过分子设计实现的挑战。在此,我们报告了解决此问题的合理方法。我们结合超分子聚合和光异构化过程来构建能量景观,其中单体可以通过光照射激活/失活。这样,超分子聚合和动力学陷阱就可以在能源领域独立设计。当“休眠” 单体在超分子聚合物种子存在下被光活化,“活化”的游离单体在种子末端以链增长方式聚合。结果,我们获得了长度可控且多分散性窄的超分子聚合物。尽管光异构化已广泛用于超分子聚合物化学,但大多数研究都集中在刺激响应上。在这方面,本研究将促使超分子化学家重新审视刺激响应性超分子聚合物系统作为设计活性超分子聚合的潜在候选者。结果,我们获得了长度可控且多分散性窄的超分子聚合物。尽管光异构化已广泛用于超分子聚合物化学,但