Intercalation compound of 1,4-diazabicyclo[2,2,2]octane (DABCO) with alpha-zirconium phosphate (alpha-ZrP) and that of 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU) with alpha-ZrP were prepared using the general procedure. The content ratio of DABCO and DBU in these componds was 0.73 and 0.57 per 1 mol of the phosphate compound. We demonstrated that the compounds of alpha-ZrP�DABCO and alpha-ZrP�DBU served as latent thermal catalysts with a curing reagent: hexahydro-4-methylphthalic anhydride (Me-HHPA) for reaction of glycidyl phenyl ether (GPE). Bulk reaction of a mixture of Me-HHPA and GPE (molar ratio of Me-HHPA/GPE = 1/1) with these intercalated compounds (3 mol% of alpha-ZrP�amine for GPE) did not take place at ambient temperature, the reaction proceeded over 100 �C or above to give a polymer. Increasing the temperature, the conversion factors of GPE increased such that, at 140 �C, both of the conversions of 91% were obtained. These intercalated compounds showed good thermal latency for the reaction of GPE with acid anhydride.

DABCO- and DBU-intercalated a-zirconium phosphates as latent thermal catalysts

248th National Meeting (2014)

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