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Morphological changes in ABC triblock copolymers by chemical modification
Author(s) -
Abetz Volker,
Markgraf Kirsten,
Rebizant Valéry
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200201)177:1<139::aid-masy139>3.0.co;2-k
Subject(s) - copolymer , polybutadiene , chemical modification , morphology (biology) , saponification , materials science , polymer chemistry , methacrylic acid , polystyrene , methacrylate , solvent , chemical engineering , polymer science , chemistry , organic chemistry , polymer , composite material , biology , engineering , genetics
Various SBT triblock copolymers with S being polystyrene, B being polybutadiene, and T being poly( tert ‐butyl methacrylate) and their saponified analogues, SBA with A being poly(methacrylic acid) are characterized in terms of their morphology. The chemical modification of the third block leads to a change of the overall morphology observed in solution cast films, which is interpreted as a consequence of the change of the incompatibility between the different components and the solvent.