Abstract
We have attempted two methods to improve the properties of the epoxy materials for high performance applications. Solventless reactions of epoxy backbones tailored with hard-soft segments were adopted to improve the toughness. This was followed by curing of epoxy groups with cyanate to enhance the properties of epoxy formulations. We have reported here the synthesis of new epoxy resins having hard-soft segments based on aromatic and aliphatic backbones. An attempt was made at the modification and characterization of TGDDM/DDS (Tetraglycidyl 4,4′′-diaminodiphenyl methane/diaminodiphenyl sulphone) system with new epoxides and 4-dicyanato diphenyl-2,2′-propane (DCDPP). Thus, new epoxides of 1,4-, 1,5- and 1,6-methylene groups with terephthalate/isophthalate backbones were synthesized and the intermediates were characterized by FT-IR, 1H/13C-NMR spectroscopic methods. The synthesized epoxides were used to modify the TGDDM/DDS/DCDPP. The neat cast laminates were made and characterized for their physical and mechanical properties.
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Suguna Lakshmi, M., Srividhya, M. & Reddy, B.S.R. New Epoxy Resins Containing Hard-soft Segments: Synthesis, Characterization and Modification Studies for High Performance Applications. Journal of Polymer Research 10, 259–266 (2003). https://doi.org/10.1023/B:JPOL.0000004628.09607.b6
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DOI: https://doi.org/10.1023/B:JPOL.0000004628.09607.b6