Perez Beatriz, Blanco Noelia, Villaverde Haizea, Echeverria Oihane, Gomez de Miranda Olga, Rodriguez Raquel
TECNALIA, Basque Research and Technology Alliance (BRTA), Paseo Mikeletegi 2, 20009 Donostia-San Sebastian, Spain.
Polymers (Basel). 2024 Aug 20;16(16):2355. doi: 10.3390/polym16162355.
The direct acrylation of soybean oil was investigated by the activation of soybean oil's (SO's) internal fatty unsaturation with acidic catalysts. The effect of the catalyst and the reactant ratio with respect to the unsaturation and reaction time on the direct acrylation process were explored. ASO (acrylated soybean oil) with acrylation degrees (the number of acrylate molecules introduced in a triglyceride molecule) between 1.6 and 2.55 were obtained. The effect of the ASO acrylation degree on copolymerization processes was investigated. The resulting monomers were successfully copolymerized with meth(acrylate) monomers by the miniemulsion polymerization process, favoring the droplet nucleation mechanism and showing conversions higher than 97%. The acrylic-ASO copolymers presented lower Tg and higher hydrophobicity and oleophobicity than the acrylic copolymer.
通过用酸性催化剂活化大豆油（SO）内部的脂肪不饱和度来研究大豆油的直接丙烯酸酯化反应。探讨了催化剂、反应物比例（相对于不饱和度）以及反应时间对直接丙烯酸酯化过程的影响。获得了丙烯酸化程度（三酰甘油分子中引入的丙烯酸酯分子数）在1.6至2.55之间的丙烯酸化大豆油（ASO）。研究了ASO丙烯酸化程度对共聚过程的影响。通过细乳液聚合过程，所得单体成功地与甲基丙烯酸酯单体共聚，有利于液滴成核机理，转化率高于97%。与丙烯酸共聚物相比，丙烯酸-ASO共聚物具有更低的玻璃化转变温度以及更高的疏水性和疏油性。
