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以丙烯酸改性松香(AR)为原料,先与草酰氯反应合成丙烯酸改性松香酰氯(AR-C l),然后与甲基丙烯酸-2-羟基乙基酯进行酯化反应合成了丙烯酸改性松香(2-甲基丙烯酰氧基乙基)酯(AR-2-HEMA),并分别采用FT-IR、GC-MS、13C NMR和差示扫描量热仪(DSC)对其结构和性能进行表征。研究结果表明,丙烯酸改性松香(2-甲基丙烯酰氧基乙基)酯主要由丙烯海松酸(2-甲基丙烯酰氧基乙基)酯(37.88%)和树脂酸(2-甲基丙烯酰氧基乙基)酯(52.48%)组成。丙烯海松酸(2-甲基丙烯酰氧基乙基)酯两种异构体质量分数分别为31.79%和6.09%。所制备的丙烯酸改性松香(2-甲基丙烯酰氧基乙基)酯在引发剂的存在下可以发生聚合反应。
Acrylic acid-modified rosin (AR) was used as the starting material to react with oxalyl chloride to synthesize acrylic acid-modified rosin acid chloride (AR-C l) and then esterified with 2-hydroxyethylmethacrylate Rosin (2-methacryloyloxyethyl) ester (AR-2-HEMA) was synthesized and characterized by FT-IR, GC-MS, 13C NMR and DSC, Characterization. The results show that the acrylic acid modified rosin (2-methacryloyloxyethyl) ester is mainly composed of (2-methacryloyloxyethyl) propionate (37.88%) and resin acid Methacryloyloxyethyl) ester (52.48%). The two isomers of propylene pimaric acid (2-methacryloyloxyethyl) were 31.79% and 6.09%, respectively. The prepared acrylic-modified rosin (2-methacryloyloxyethyl) ester can undergo polymerization reaction in the presence of an initiator.