Method for preparing and processing binary copolymer polycarbonate adhesive resin
A technology of binary copolycarbonate and binary copolycarbonate, which is applied in the field of polymer bonding resin preparation, can solve the problem of chlorinated alkanes and alcohol solvent emissions, affecting device performance and service life, and mixed solvents cannot be separated Recycling and other issues, to achieve the effect of good dissolution, recyclable solvents, and applicable treatment methods
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Embodiment 1
[0023] 2.01 g (7.5 mmol) of bisphenol Z (1,1'-bis(4-hydroxyphenyl) cyclohexane), 1.71 g (7.5 mmol) of bisphenol A (2,2-bis(4-hydroxyphenyl) ) propane) was dissolved in 150 mL of 2% sodium hydroxide aqueous solution under stirring. After adding 0.24 g (0.75 mmol) of tetrabutylammonium bromide and 0.66 mL (0.15 mmol) of triethylamine at -5°C, 2.98 g (10.05 mmol) of triphosgene was added dropwise and dissolved in 150 mL of dichloromethane (CH 2 Cl 2 ) solution, after fully stirring for half an hour, the temperature was raised to 15° C. to carry out liquid-liquid two-phase polycondensation for 3 hours. After the reaction, the water phase was separated with a separatory funnel to obtain a dichloromethane solution containing bisphenol Z-bisphenol A binary copolycarbonate.
[0024] The dichloromethane solution of bisphenol Z-bisphenol A binary copolycarbonate obtained in the previous step was washed twice with 1.0M NaOH solution, and then repeatedly washed with deionized water unti...
Embodiment 2
[0026] 2.82 g (10.5 mmol) of bisphenol Z and 1.03 g (4.5 mmol) of bisphenol A were dissolved in 150 mL of 3% sodium hydroxide aqueous solution under stirring. After adding 0.48 g (1.5 mmol) of tetrabutylammonium bromide and 1.32 mL (0.30 mmol) of triethylamine at 0°C, 4.54 g (15.30 mml) of triphosgene was added dropwise and dissolved in 150 mL of dichloromethane (CH 2 Cl 2 ) solution, after fully stirring for half an hour, the temperature was raised to 25° C. to carry out liquid-liquid two-phase polycondensation for 2 hours. After the reaction, the water phase was separated with a separatory funnel to obtain a dichloromethane solution containing bisphenol Z-bisphenol A binary copolycarbonate.
[0027] The dichloromethane solution of bisphenol Z-bisphenol A binary copolycarbonate obtained in the previous step was washed twice with 0.8M NaOH solution, and then repeatedly washed with deionized water until the aqueous phase was detected to be free of chloride ions with silver nit...
Embodiment 3
[0029] 3.62 g (13.5 mmol) of bisphenol Z and 0.34 g (1.5 mmol) of bisphenol A were dissolved in 150 mL of 4% sodium hydroxide aqueous solution under stirring. After adding 0.72 g (2.25 mmol) of tetrabutylammonium bromide and 3.28 mL (0.75 mmol) of triethylamine at 10°C, 5.92 g (19.95 mml) of triphosgene was added dropwise and dissolved in 150 mL of dichloromethane (CH 2 Cl 2 ) solution, after fully stirring for half an hour, the temperature was raised to 35° C. to carry out liquid-liquid two-phase polycondensation for 4 hours. After the reaction, the water phase was separated with a separatory funnel to obtain a dichloromethane solution containing bisphenol Z-bisphenol A binary copolycarbonate.
[0030] The dichloromethane solution of bisphenol Z-bisphenol A binary copolycarbonate obtained in the previous step was washed twice with 0.1NaOH solution, and then repeatedly washed with deionized water until the aqueous phase was detected to be free of chloride ions with silver nit...
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