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Poly(phenylene oxide) macromonomers for graft copolymer synthesis via ring‐opening olefin metathesis polymerization
Author(s) -
Grutke Stefan,
Hurley James H.,
Risse Wilhelm
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.1994.021950817
Subject(s) - polymer chemistry , copolymer , phenylene , ring opening polymerization , polymerization , macromonomer , olefin metathesis , ring opening metathesis polymerisation , metathesis , chemistry , materials science , organic chemistry , polymer
Poly(oxy‐2,6‐dimethyl‐1,4‐phenylene) samples with bicyclic olefin end groups were obtained by esterification of the hydroxyl end group of the poly(phenylene oxide) with bicyclo[2.2.1]hept‐5‐ene‐2‐carbonyl chloride. Mixtures of these macromonomers with bicyclo[2.2.1]hept‐5‐ene‐2‐carboxylic acid 2‐(2‐(2‐methoxyethoxy)ethoxy)ethyl ester were copolymerized by ring‐opening olefin metathesis polymerization (ROMP) to produce graft copolymers with poly(phenylene oxide) side chains. The catalyst used for the metathesis polymerization was RuCl 3 (hydrate). Molecular weights of the graft copolymers were in the range of 130 000 to 250 000. Macromonomers containing exclusively exo‐linked bicyclic end groups were found to be more reactive than macromonomers with 55% exo‐ and 45% endo‐substituted end groups.