Synthesis of polystyrene-poly(methacrylic acid) amphiphilic block copolymers by free-radical polymerization through chain-transfer and hydrosilylation reactions

Amphiphilic polystyrene-poly(methacrylic acid) block copolymers of various compositions have been synthesized by free-radical polymerization via chain-transfer and hydrosilylation reactions, as established by viscometry, IR spectroscopy, and fractionation measurements. The compositional homogeneity...

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Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2006-05, Vol.48 (5), p.470-476
Main Authors: Bulgakova, S. A., Mazanova, L. M., Semchikov, Yu. D., Gribkov, B. A.
Format: Article
Language:English
Subjects:
Block copolymers
Chain reactions
Chains (polymeric)
Homogeneity
Hydrosilylation
Monomers
Polymerization
Terminals
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Summary:Amphiphilic polystyrene-poly(methacrylic acid) block copolymers of various compositions have been synthesized by free-radical polymerization via chain-transfer and hydrosilylation reactions, as established by viscometry, IR spectroscopy, and fractionation measurements. The compositional homogeneity of the block copolymers worsens with an increase in the content of a low-molecular-mass monomer in the starting mixture and is independent of the nature of the terminal unit of a macromonomer.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X06050038