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Vesicles Formed by Oligostyrene‐ block ‐Oligoaniline‐ block ‐Oligostyrene Triblock Oligomer
Author(s) -
Wang Hanfu,
Han Yanchun
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800705
Subject(s) - oligomer , micelle , vesicle , copolymer , materials science , polymer chemistry , block (permutation group theory) , random coil , conjugated system , biophysics , chemistry , polymer , crystallography , membrane , biochemistry , organic chemistry , biology , composite material , circular dichroism , geometry , mathematics , aqueous solution
Novel π ‐conjugated coil–rod–coil triblock oligomers containing optoelectronic active oligoaniline segments were synthesized. The block oligomer can self‐assemble into diverse aggregating morphologies including spherical micelles and thin‐layer vesicles in THF, which is found associated with the removing of the protecting groups of oligoaniline segments. A possible mechanism was proposed to explain the self‐assembly behavior changes in which chain conformation variation of the aniline segments initiated from deprotection of the nitrogen atoms is pointed to be the key factor that dominates the transition process.