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Phase separation in poly(methyl methacrylate)‐ block ‐poly(2,3‐dibromopropyl methacrylate) copolymers
Author(s) -
Davy Kenneth W. M.
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950423
Subject(s) - copolymer , polymer chemistry , methacrylate , methyl methacrylate , polymerization , materials science , phase (matter) , chemistry , polymer , organic chemistry , composite material
AB block copolymers poly(methyl methacrylate)‐ block ‐poly(2,3‐dibromopropyl methacrylate) were prepared by a two‐stage process involving the sequential anionic polymerization of methyl methacrylate and allyl methacrylate followed by bromination of the pendant allylic groups. Transmission electron microscopy of thin sections of cast films revealed phase separation, the morphology depending upon composition of the block. In particulate form these copolymers gelled with methyl methacrylate to form doughs that could be moulded and heat cured to produce hard X‐ray opaque copolymers.