Optical epoxy resin and synthesis method thereof
A technology of epoxy resin and synthesis method, applied in the direction of organic chemistry, etc., can solve problems such as limited dosage, difficulty in popularization and application, and difficulty in dispersion of nanoparticles, and achieve the effect of good transparency, moderate viscosity, and easy popularization and application
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Embodiment 1
[0031] Embodiment 1 (this example is comparative reference example)
[0032] Add 0.25 moles of epichlorohydrin and 0.1 moles of dimercapto diphenyl sulfide into a three-necked flask equipped with a stirring device, a thermometer and a reflux condenser, stir and dissolve in a water bath; add 0.001 moles of quaternary ammonium salt as a catalyst ;React for 2 hours at a water bath temperature of 70°C; then raise the temperature, and recover most of the unreacted epichlorohydrin by distillation at a temperature lower than 120°C; then keep the reaction temperature at 70°C, and within 2 to 2.5 hours Add solid sodium hydroxide four times, adding once every 0.5 hours, wherein the total amount of sodium hydroxide added is 0.2 mole; then keep warm at 70°C for 0.5 to 1 hour to generate a reaction product. Add 0.2-2 moles of methyl isobutyl ketone into the reaction product, then stop stirring and discharge. Put the material in a separatory funnel, add 10 moles of distilled water, oscilla...
Embodiment 2
[0034] Add 0.25 moles of epichlorohydrin, 0.1 moles of dimercaptodiphenyl sulfide and 0.1 moles of bisphenol F diglycidyl ether into a three-necked flask equipped with a stirring device, a thermometer and a reflux condenser, and stir and dissolve in a water bath ; Add 0.001 moles of quaternary ammonium salt as a catalyst; react for 2 hours at a water bath temperature of 70°C; then raise the temperature, and recover most of the unreacted epichlorohydrin by distillation at a temperature lower than 120°C; then maintain the reaction temperature At 70°C, add solid sodium hydroxide four times within 2 to 2.5 hours, adding once every 0.5 hours, wherein the total amount of sodium hydroxide added is 0.2 moles; then at 70°C, keep warm for 0.5 to 1 hours, a reaction product was formed. Add 0.2-2 moles of methyl isobutyl ketone into the reaction product, then stop stirring and discharge. Put the material in a separatory funnel, add 10 moles of distilled water, oscillate to form an organi...
Embodiment 3
[0036] Add 0.25 moles of epichlorohydrin, 0.1 moles of dimercaptodiphenyl sulfide and 0.1 moles of bisphenol A diglycidyl ether into a three-necked flask equipped with a stirring device, a thermometer and a reflux condenser, and stir and dissolve in a water bath ; Add 0.001 moles of quaternary ammonium salt as a catalyst; react for 2 hours at a water bath temperature of 70°C; then raise the temperature, and recover most of the unreacted epichlorohydrin by distillation at a temperature lower than 120°C; then maintain the reaction temperature At 70°C, add solid sodium hydroxide four times within 2 to 2.5 hours, adding once every 0.5 hours, wherein the total amount of sodium hydroxide added is 0.2 moles; then at 70°C, keep warm for 0.5 to 1 hours, a reaction product was formed. Add 0.2-2 moles of methyl isobutyl ketone into the reaction product, then stop stirring and discharge. Put the material in a separatory funnel, add 10 moles of distilled water, oscillate to form an organi...
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