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Hydroxyl‐terminated cotelomers of butadiene and bromostyrene
Author(s) -
Naé H. N.,
Vofsi D.
Publication year - 1985
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.1985.070300509
Subject(s) - polybutadiene , hydrogen peroxide , copolymer , monomer , polymer chemistry , molar mass distribution , peroxide , materials science , chemistry , organic chemistry , composite material , polymer
The synthesis of hydroxyl‐terminated cotelomers of 1,3‐butadiene and bromostyrene was studied. Hydrogen peroxide was used in solution copolymerization to obtain cotelomers of average molecular weights of 1000–4000. The higher the hydrogen peroxide concentration, the broader the molecular weight distribution. The molecular weight is apparently unaffected by the hydrogen peroxide concentration within the limits studied. The concentration of bromostyrene in the products is correlated with its concentration in the monomers. Microstructure of the cotelomers is analyzed. Vinyl content is about 25% of the butadiene content. A correlation of the glass transition temperatures of the cotelomers with those of pure polybromostyrene and polybutadiene is discussed.