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Synthesis of end‐functionalized polymers by means of living anionic polymerization, 3 . Synthesis of polystyrene and polyisoprene with 1,3‐butadienyl termini by reaction of their anionic living polymers with 6‐bromo‐3‐methylene‐1‐hexene
Author(s) -
Takenaka Katsuhiko,
Hirao Akira,
Nakahama Seiichi
Publication year - 1995
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.1995.021960524
Subject(s) - living anionic polymerization , polymer chemistry , polystyrene , polymer , anionic addition polymerization , polymerization , living polymerization , chemistry , end group , materials science , radical polymerization , organic chemistry
Both polystyrenes and polyisoprenes with 1,3‐butadienyl end‐groups were synthesized by the reactions of polystyryl and polyisoprenyl anions with 6‐bromo‐3‐methylene‐1‐hexene ( 3 ). The 1,3‐butadienyl end‐group was further transformed to an anhydride function by Diels‐Alder reaction with maleic anhydride. These end‐functionalized polymers were characterized by size exclusion chromatography (SEC), infrared spectroscopy, elemental analysis, 1 H and 13 C NMR, and thin layer chromatography coupled with a flame ionization detector. All analytical deta indicate that the polymers are quantitatively end‐functionalized with 3 and then with maleic anhydride. Polymers with one or two end‐functions are obtainable.