(Meth)acrylic acid silicone graft polymer, its production method, and cosmetic
A technology of acrylic silicone and its manufacturing method, which is applied in cosmetics, cosmetic preparations, pharmaceutical formulations, etc., can solve problems such as makeup film adhesion, and achieve the effects of excellent heat resistance, good makeup retention, and high purity
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Embodiment 1
[0203] 19.9 mg of tetrabutylammonium m-chlorobenzoate dried under reduced pressure was put into a three-necked flask, and 25 mL of tetrahydrofuran (THF) was added to dissolve it. Under a nitrogen atmosphere, 436 mg of dimethylketene methyltrimethylsilyl acetal was added, and 10 g of a monomer mixture (methyl methacrylate (MMA)) was added dropwise over 30 minutes, and a monomer represented by the following formula was added dropwise. Body (a) 10 g). After further stirring at room temperature for 30 minutes, 4 mL of methanol was added to terminate the reaction. The copolymer was obtained by distillation under reduced pressure at 150°C for 1 hour. The obtained copolymer was dissolved in deuterated chloroform and measured 1 H-NMR. according to 1 The H-NMR spectrum confirmed the copolymer represented by the following formula (7). Will 1 The H-NMR map is shown in figure 1 and figure 2 middle. figure 1 Yes 1 The overall picture of the H-NMR chart, figure 2 will 1 In the...
Embodiment 2
[0213] 19.9 mg of tetrabutylammonium m-chlorobenzoate dried under reduced pressure was put into a three-necked flask, and 25 mL of THF was added to dissolve it. Under a nitrogen atmosphere, 436 mg of dimethylketene methyltrimethylsilyl acetal was added, and a monomer mixture (15 g of methyl methacrylate, 15 g of the monomer (a)) was added dropwise over 30 minutes. After further stirring at room temperature for 30 minutes, 4 mL of methanol was added to terminate the reaction. The copolymer was obtained by distillation under reduced pressure at 150°C for 1 hour. The obtained copolymer was dissolved in deuterated chloroform and measured 1 H-NMR. according to 1 The H-NMR spectrum confirmed the copolymer represented by the above formula (7). Moreover, the number average molecular weight and polydispersity (Mw / Mn) (polystyrene conversion) were calculated|required by GPC. Furthermore, the residual monomer was quantified by GC-MS. The results are as follows.
[0214] Number ave...
Embodiment 3
[0217] 19.9 mg of tetrabutylammonium m-chlorobenzoate dried under reduced pressure was put into a three-necked flask, and 25 mL of THF was added to dissolve it. Under a nitrogen atmosphere, 436 mg of dimethylketene methyltrimethylsilyl acetal was added, and a monomer mixture (20 g of methyl methacrylate, 20 g of the monomer (a)) was added dropwise over 30 minutes. After further stirring at room temperature for 30 minutes, 4 mL of methanol was added to terminate the reaction. The copolymer was obtained by distillation under reduced pressure at 150°C for 1 hour. The obtained copolymer was dissolved in deuterated chloroform and measured 1 H-NMR. according to 1 The H-NMR spectrum confirmed the copolymer represented by the above formula (7). Moreover, the number average molecular weight and polydispersity (Mw / Mn) (polystyrene conversion) were calculated|required by GPC. Furthermore, the residual monomer was quantified by GC-MS. The results are as follows.
[0218] Number ave...
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