Anionic copolymerization of diglycidyl ether of bisphenol A with Meldrum's acid derivatives initiated by 4‐(N,N‐dimethylamino) pyridine

作者: Lidia González , Xavier Ramis , Josep Maria Salla , Ana Mantecón , Angels Serra

DOI: 10.1002/APP.29211

关键词: Fourier transform infrared spectroscopyDiglycidyl etherChemistryBisphenol APolymer chemistryCuring (chemistry)Meldrum's acidEpoxideRing-opening polymerizationPyridine

摘要: The anionic copolymerization of diglycidyl ether bisphenol A with 2,2,5,5-tetramethyl-4,6-dioxo-1,3-dioxane or 6,6-dimethyl-(4,8-dioxaspiro[2.5]octane-5,7-dione) 4-(N,N-dimethylamino) pyridine as an initiator to form thermosets was studied differential scanning calorimetry, and the kinetics were evaluated isoconversional procedures. evolution during curing process epoxide, lactone, linear ester bands Fourier transform infrared spectroscopy in attenuated total reflection mode clarify reactions taking place. shrinkage curing, thermomechanical properties, thermal degradability materials obtained by different derivatives Meldrum's acid related chemical structure final network.

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