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Synthesis and characterization of an amphiphilic graft copolymer with a poly(acrylic acid) backbone and n ‐octylphenyl polyoxyethylene side chains
Author(s) -
Wang F. P.,
Du X. Z.,
Wang C.,
Dong X. L.,
Yuan L.
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.27239
Subject(s) - copolymer , polymer chemistry , acrylic acid , macromonomer , amphiphile , gel permeation chromatography , acrylate , micelle , aqueous solution , side chain , solubility , chemistry , sulfonate , materials science , polymer , organic chemistry , sodium
A novel, well‐defined, amphiphilic graft copolymer was synthesized by the free‐radical copolymerization of acrylic acid and an amphiphilic macromonomer, n ‐octylphenyl polyoxyethylene acrylate. This acrylic copolymer was characterized by IR and 1 H‐NMR. The number‐average molecular weight was determined by gel permeation chromatography to be 4.37 × 10 4 (weight‐average molecular weight/number‐average molecular weight = 1.23). The graft copolymer exhibited good solubility in water and high surface activity at much lower concentrations. The molecules of the AA–C 8 PhEO 10 Ac copolymer formed polymolecular micelles at 3.0 × 10 −4 g/mL. The aggregation of the copolymer was examined in aqueous solution by measurement of the fluorescence of 2‐ p ‐ toluidinylnaphthalene 6‐sulfonate as a fluorescent probe. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008