メタクリル酸イソボルニル 化学特性,用途語,生産方法
外観
無色～うすい黄色、液体
定義
本品は、次の化学式で表される有機化合物である。
用途
有機合成原料。
化粧品の成分用途
人工爪剤
化学的特性
CLEAR COLORLESS TO YELLOW LIQUID
特性
Isobornyl methacrylate is a colorless transparent liquid. It is a monomer that unifies hardness and flexibility. Due to its molecular structure, its polymer has excellent high gloss, sharp image, scratch resistance, medium resistance and weather resistance, and Its hygroscopicity is significantly lower than that of MMA (methyl methacrylate). In addition, IBOMA-added acrylic resin has good compatibility with polyester, alkyd and many volatile paint film-forming substances.
使用
Isobornyl methacrylate is a versatile hydrophobic monomer with a good combination of hardness and flexibility that can improve the chemical and water resistance of polymer systems.
製造方法
Isobornyl methacrylate was synthesized by direct esterification of camphene and methacrylic acid.
一般的な説明
Isobornyl methacrylate is a reactive solvent with low vapor pressure. It facilitates the free radical polymerization by forming a polymer with high glass transition temperature (T
g).
合成
Isobornyl methacrylate is obtained by reacting (1S,2S,4S)-(+)-isoborneol and 4-methoxyphenol.Dissolve5g (1S,2S,4S)-(+)-isoborneol in 15 mL toluene. Add 4 mg (0.032 mmol) 4-methoxyphenol to the solution. After the addition of 0.4 g (3.24 mmol)4-dimethylamino pyridine, add a solution of 10 g (64.8 mmol) methacrylic anhydride (MAA) in 10 mL toluene dropwise to the mixture. Heat the reaction mixture to 80 °C. Stir the reaction mixture for 16 hours. After cooling down to room temperature, wash the mixture with 50 mL 1M sodium bicarbonate solution four times. Wash the organic phase with 50 mL brine two times. Separate the organic phase. Remove the toluene by rotary evaporation followed by a fractional distillation under reduced pressure.
1H NMR (CDCl3, 300 MHz): δ(ppm) = 6.06 (dq, 1H, 1); 5.51 (dq, 1H, 2); 4.71 (m ,1H, 4); 1.93 (dd, 3H, 3); 1.87-1.5 (m, 5H, 6,7,8); 1.23-1.04 (m, 2H, 5); 1.012 (s, 3H, 9);0.86 (s, 3H, 10); 0.85 (s, 3H, 11). IR (film): ν(cm-1) = 2954 (CH2), 2879 (CH2), 1715 (C=O) 1454 (CH2), 1157 and 1053 (C=O).
Fig The synthetic method of Isobornyl methacrylate
メタクリル酸イソボルニル 上流と下流の製品情報
原材料
準備製品