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Photo‐Induced Programmable Morphological Transition of the Hybrid Coassembles
Author(s) -
Li Jin,
Su Zhilong,
Xu Hongjie,
Ma Xiaodong,
Yin Jie,
Jiang Xuesong
Publication year - 2018
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201800054
Subject(s) - azobenzene , silsesquioxane , materials science , morphology (biology) , ether , microsphere , nanoparticle , nanotechnology , photothermal therapy , photothermal effect , polymer chemistry , chemical engineering , chemistry , polymer , composite material , organic chemistry , genetics , engineering , biology
Morphology and nanoparticle's distribution are both key factors to the hybrid coassemblies. A fancy method to dynamically control the morphology of hybrid core–shell microspheres (CSMs) with UV light is introduced. The CSMs used here are fabricated with azobenzene (AZO) ended hyperbranched poly(ether amine) in the shell and AZO containing polyhedral oligomer silsesquioxane in the core through coassembly. Upon UV irradiation, the dynamic morphology transition from core–shell microsphere to vesicle is realized by synergistic effects and photothermal effects of AZO, resulting in the size of coassemblies increasing from 1.2 to 2.5 µm. And versatile multivesicular structures can be fixed and captured as mid‐states in taking advantage of the easy control of ON/OFF of UV light. This programmable morphology transition provides a new insight for fabricating light‐controlled hybrid materials with ideal structure in soft nanotechnology which matches with requirements in in situ tunable functions, controlled release, and so on.