Polymerizable composition and dental material
a polymerizable composition and dental material technology, applied in the field of polymerizable composition and dental material, can solve the problems of easy loss, difficulty in supporting teeth, loose teeth, etc., and achieve the effects of good adhesive properties to tooth structure, bone, metals, and good viscosity and forming properties
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reference example 1
Production of the Acrylic Block Copolymer (a)-1
[0111](1) A three-way stopcock was attached to a 1 liter three-necked flask, the inside of which was degassed and substituted by nitrogen. Thereafter, 390 g of toluene, 1.4 ml of N,N′,N′,N″,N″-pentamethyl diethylene triamine, and 18 ml of a toluene solution containing 11 mmol of isobutylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum was added thereto at room temperature, and 1.7 ml of a mixed solution of cyclohexane and n-hexane containing 2.2 mmol of sec-butyl lithium was further added thereto. 14 ml of methyl methacrylate was added thereto, which was allowed to react at room temperature for 1 hour. 1 g of the reaction solution at that time was collected as Sample 1. Subsequently, the internal temperature of the polymerization solution was cooled to −15° C., and 120 ml of n-butyl acrylate was added dropwise thereto over 6 hours. After completion of addition, 1 g of the reaction solution was collected as Sample 2. Subsequently, 14 ml of me...
reference example 2
Production of the Acrylic Block Copolymer (a)-2
[0113](1) A three-way stopcock was attached to a 1 liter three-necked flask, the inside of which was degassed and substituted by nitrogen. Thereafter, 390 g of toluene, 1.4 ml of N,N′,N′,N″,N″-pentamethyl diethylene triamine, and 18 ml of a toluene solution containing 11 mmol of isobutylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum was added thereto at room temperature, and 1.7 ml of a mixed solution of cyclohexane and n-hexane containing 2.2 mmol of sec-butyl lithium was further added thereto. 35 ml of methyl methacrylate was added thereto, which was allowed to react at room temperature for 1 hour. 1 g of the reaction solution at that time was collected as Sample 1. Subsequently, the internal temperature of the polymerization solution was cooled to −15° C., and 75 ml of n-butyl acrylate was added dropwise thereto over 5 hours. After completion of addition, 1 g of the reaction solution was collected as Sample 2. Subsequently, 35 ml of met...
reference example 3
Production of the Acrylic Block Copolymer (a)-3
[0115](1) A three-way stopcock was attached to a 1 liter three-necked flask, the inside of which was degassed and substituted by nitrogen. Thereafter, 390 g of toluene, 0.95 ml of N,N′,N′,N″,N″-pentamethyl diethylene triamine, and 12 ml of a toluene solution containing 11 mmol of isobutylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum was added thereto at room temperature, and 1.1 ml of a mixed solution of cyclohexane and n-hexane containing 2.2 mmol of sec-butyl lithium was further added thereto. 5 ml of methyl methacrylate was added thereto, which was allowed to react at room temperature for 1 hour. 1 g of the reaction solution at that time was collected as Sample 1. Subsequently, the internal temperature of the polymerization solution was cooled to −15° C., and 97 ml of n-butyl acrylate was added dropwise thereto over 5 hours. After completion of addition, 1 g of methanol was added to this reaction solution to stop the polymerization. Th...
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