Reentrant morphological transitions in copolymer micelles with pH-sensitive corona.
作者： O. V. Borisov , E. B. Zhulina
DOI: 10.1021/LA0469203
关键词: Self-assembly 、 Chemistry 、 Ionic strength 、 Copolymer 、 Micelle 、 Ionization 、 Polymer chemistry 、 Chemical physics 、 Ionic bonding 、 Polyelectrolyte 、 Salt (chemistry)
摘要: In contrast to self-assembled aggregates of conventional ionic (including polymeric) surfactants the equilibrium micelles diblock copolymer with a pH-sensitive polyelectrolyte block can exhibit two inverse sequences morphological transitions triggered by an increase in solution salinity. The direct sequence sphere-cylinder-lamella is similar that for strongly dissociating and occurs at high salt concentration solution. abnormal reversed lamella-cylinder-sphere predicted occur relatively low strength origin reentrant coupling between aggregation ionization micelles.
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