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Cationic Copolymerization Behavior of Glycidyl Phenyl Ether with Seven‐Membered Cyclic Carbonate
Author(s) -
Morikawa Hiroshi,
Sudo Atsushi,
Nishida Haruo,
Endo Takeshi
Publication year - 2005
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.200400403
Subject(s) - copolymer , cationic polymerization , polymer chemistry , carbonate , epoxide , chemistry , ether , organic chemistry , catalysis , polymer
Summary: To clarify the cationic copolymerization behavior of epoxide and cyclic carbonate, the copolymerization behavior of glycidyl phenyl ether (GPE) with seven‐membered cyclic carbonate (7CC) was carried out using methyl trifluoromethanesulfonate (MeOTf) as a cationic initiator. The addition of 7CC accelerated the consumption rate of GPE, and the resulting copolymers were richer in 7CC‐derived unit compared to the feed ratio of 7CC. During the copolymerization, a large amount of five‐membered cyclic carbonate having a phenoxymethyl group (PM‐5CC) was produced as a by‐product, which suggests the corresponding spiroorthocarbonate was formed as an intermediate and that residual oxytetramethylene (OTM) unit was incorporated into the copolymer sequence. From 1 H NMR analysis, it was found that the copolymers had a statistically random sequence consisting of GPE, 7CC, and OTM units.