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Segregation of Coronal Chains in Micelles Formed by Supramolecular Interactions
Author(s) -
Gohy JeanFrançois,
Khousakoun Eric,
Willet Nicolas,
Varshney Sunil K.,
Jérôme Robert
Publication year - 2004
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.200400246
Subject(s) - copolymer , ethylene oxide , micelle , materials science , polymer chemistry , polystyrene , styrene , acrylic acid , oxide , poly ethylene , chemical engineering , ethylene , chemistry , polymer , aqueous solution , composite material , organic chemistry , catalysis , engineering , metallurgy
Summary: Spherical micelles have been formed by mixing, in DMF, a poly(styrene)‐ block ‐poly(2‐vinylpyridine)‐ block ‐poly(ethylene oxide) (PS‐ block ‐P2VP‐ block ‐PEO) triblock copolymer with either poly(acrylic acid) (PAA) or a tapered triblock copolymer consisting of a PAA central block and PEO macromonomer‐based outer blocks. Noncovalent interactions between PAA and P2VP result in the micellar core while the outer corona contains both PS and PEO chains. Segregation of the coronal chains is observed when the tapered copolymer is used.Inclusion of comb‐like chains with short PEO teeth in the corona triggers the nanophase segregation of PS and PEO as illustrated here (PS = polystyrene; PEO = poly(ethylene oxide)).