Studies on novel tri-phthalonitrile phenyl polyhedral oligomeric silsesquioxane and the phthalonitrile–epoxy blends
作者： Kumudha Kaliavaradhan , Sarojadevi Muthusamy
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摘要: A novel tri-phthalonitrile phenyl polyhedral oligomeric silsesquioxane (TPnPh-POSS) was synthesized from trisilanol POSS and 4-nitrophthalonitrile. The structure of the TPnPh-POSS monomer characterized by Fourier transform infrared spectroscopy nuclear magnetic resonance spectroscopy. phthalonitrile thermally polymerized with various concentrations (3, 4, 5 wt%) 4,4′-diaminodiphenyl sulfone (DDS) as curing agent. behavior investigated differential scanning calorimetry. influence content additive on polymer properties studied. Blends diglycidyl ether bisphenol (epoxy resin) were successfully prepared. thermal mechanical these blends DDS agent evaluated compared neat epoxy resin. stability cured polymers epoxy/TPnPh-POSS studied thermogravimetric analysis. Dynamic analysis ...
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