A kind of graft copolymer containing epoxy group and its preparation method and application
A technology of graft copolymers and epoxy groups, which is applied in the field of graft copolymers containing epoxy groups and its preparation, can solve the problems of low mechanical strength and achieve the effect of improving strength
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Embodiment 1
[0056] Under nitrogen protection, after mixing and stirring 76g styrene, 24g acrylonitrile, 1.5g chain transfer agent mercaptopropanol, 4.2g initiator azobisisobutyronitrile and 200g solvent butyl acetate, move to a mixing paddle, In a four-neck flask with a condenser and a thermometer, heat to 65°C and react for 6 hours to obtain a butyl acetate solution containing polymer D; lower the reaction system to room temperature, add 0.01g of inhibitor hydroquinone, 0.04g catalyst N,N-dimethylbenzylamine and 2.1g carbon-carbon double bond-containing monomer E methacryloyl chloride (the molar ratio of polymer D to carbon-carbon double bond-containing monomer E is 1:1.2 ), after stirring and reacting at room temperature for 8 hours, the product was rotary evaporated and dried to obtain a polymer C containing carbon-carbon double bonds. The number average molecular weight of the obtained polymer C was about 5400 through GPC testing.
Embodiment 2
[0059] Under nitrogen protection, after mixing and stirring 70g α-methylstyrene, 50g α-methacrylonitrile, 1.5g chain transfer agent mercaptopropanol, 3.5g initiator azobisisobutyronitrile and 240g solvent butanone, Move to a four-necked flask equipped with a stirring paddle, a condenser and a thermometer, heat to 65°C, and react for 6 hours to obtain a butanone solution containing polymer D; lower the reaction system to room temperature, and add 0.01g of polymerization inhibitor Diphenylamine sulfide, 0.02g catalyst triethylamine and 1.36g carbon-carbon double bond-containing monomer E methacryloyl chloride (the molar ratio of polymer D to carbon-carbon double bond-containing monomer E is 1:0.8) , After stirring and reacting at room temperature for 5 h, the product was dried by rotary evaporation to obtain a polymer C containing carbon-carbon double bonds. According to the GPC test, it can be seen that the number average molecular weight of the obtained polymer C is about 5770...
Embodiment 3
[0062] Under the protection of nitrogen, mix and stir 80g styrene, 40g α-methacrylonitrile, 2g chain transfer agent mercaptoethanol, 1.2g initiator azobisisoheptanonitrile and 150g solvent ethyl acetate, and then move to a stirring In a four-neck flask with paddle, condenser and thermometer, heat to 70°C and react for 5 hours to obtain an ethyl acetate solution containing polymer D; lower the reaction system to room temperature, add 0.01g of inhibitor nitroso Benzene, 0.02g catalyst N,N-dimethylcyclohexylamine and 5.0g carbon-carbon double bond-containing monomer E isocyanoethyl methacrylate (polymer D and carbon-carbon double bond-containing monomer The molar ratio of E is 1:1.25), after stirring and reacting at room temperature for 10 h, the product was rotary evaporated and dried to obtain a polymer C containing carbon-carbon double bonds. According to the GPC test, it can be seen that the number average molecular weight of the obtained polymer C is about 12800.
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