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Chiral Polymeric Micelles From Electrostatic Assembly Between Achiral Porphyrins and Block Copolymers
Author(s) -
Li Junbo,
An Yingli,
Chen Xi,
Xiong De'an,
Li Yan,
Huang Nan,
Shi Linqi
Publication year - 2008
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.200700567
Subject(s) - micelle , copolymer , self assembly , materials science , spectroscopy , aqueous solution , polymer chemistry , chemical engineering , peg ratio , chemistry , nanotechnology , organic chemistry , polymer , physics , composite material , finance , economics , quantum mechanics , engineering
A chiral polymeric micelle is described, formed from the self‐assembly of TPPS and PEG 114 ‐ b ‐P(4VP) 38 in aqueous media based on their electrostatic interaction. The self‐assembly behavior is studied by DLS, SLS, TEM, UV‐vis absorption spectroscopy, and CD spectroscopy. The experimental results indicate that the resultant hybrid spherical micelles with a hybrid P(4VP)/TPPS core and a PEG shell show chiral signatures. In addition, the chiral micelles have a large dimension and biphasic segregated structure because of the formation of H‐aggregates and J‐aggregates in the micellar core.