Xu Weinan, Ledin Petr A, Shevchenko Valery V, Tsukruk Vladimir V
†School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
‡Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkovskoe shosse 48, Kiev 02160, Ukraine.
ACS Appl Mater Interfaces. 2015 Jun 17;7(23):12570-96. doi: 10.1021/acsami.5b01833. Epub 2015 Jun 5.
Branched polyelectrolytes with cylindrical brush, dendritic, hyperbranched, grafted, and star architectures bearing ionizable functional groups possess complex and unique assembly behavior in solution at surfaces and interfaces as compared to their linear counterparts. This review summarizes the recent developments in the introduction of various architectures and understanding of the assembly behavior of branched polyelectrolytes with a focus on functional polyelectrolytes and poly(ionic liquid)s with responsive properties. The branched polyelectrolytes and poly(ionic liquid)s interact electrostatically with small molecules, linear polyelectrolytes, or other branched polyelectrolytes to form assemblies of hybrid nanoparticles, multilayer thin films, responsive microcapsules, and ion-conductive membranes. The branched structures lead to unconventional assemblies and complex hierarchical structures with responsive properties as summarized in this review. Finally, we discuss prospectives for emerging applications of branched polyelectrolytes and poly(ionic liquid)s for energy harvesting and storage, controlled delivery, chemical microreactors, adaptive surfaces, and ion-exchange membranes.
与线性聚电解质相比，带有可电离官能团的具有圆柱形刷状、树枝状、超支化、接枝和星形结构的支化聚电解质在溶液中、表面和界面处具有复杂而独特的组装行为。本综述总结了在引入各种结构以及理解支化聚电解质组装行为方面的最新进展，重点关注具有响应特性的功能性聚电解质和聚（离子液体）。支化聚电解质和聚（离子液体）与小分子、线性聚电解质或其他支化聚电解质发生静电相互作用，形成杂化纳米颗粒、多层薄膜、响应性微胶囊和离子导电膜的组装体。如本综述所述，支化结构导致具有响应特性的非常规组装体和复杂的分级结构。最后，我们讨论了支化聚电解质和聚（离子液体）在能量收集与存储、控释、化学微反应器、自适应表面和离子交换膜等新兴应用方面的前景。
