Premium
Microwave‐Accelerated Polymerization of 2‐Phenoxymethyl‐1,4,6‐trioxaspiro[4,4]nonane with Diglycidyl Ether of Bisphenol A
Author(s) -
Canadell Judit,
Mantecón Ana,
Cádiz Virginia
Publication year - 2007
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.200700157
Subject(s) - diglycidyl ether , polymer chemistry , cationic polymerization , chemistry , copolymer , trifluoromethanesulfonate , nonane , polymerization , lanthanum , epoxy , bisphenol a , materials science , organic chemistry , catalysis , polymer
The cationic copolymerization of 2‐phenoxymethyl‐1,4,6‐trioxaspiro[4,4]nonane with DGEBA under microwave irradiation using ytterbium and lanthanum triflates as initiators is described. A comparison with thermal heating showed a great enhancement in the reaction rates and a higher SOE incorporation in the network. The double ring opening of SOE reduces the usual shrinkage of epoxy resins on curing, and it was lower under microwave irradiation. Moreover, the ytterbium triflate initiator lead to a higher incorporation of linear ester moieties in the network than lanthanum triflate.