系列环状螯合硼酸酯键合剂的合成及工艺优化
发布时间：2018-10-08 12:09
【摘要】：为解决硼酸酯键合剂易水解的问题,选择酯化和酯交换的方法合成出了2个系列共8种环状螯合硼酸酯键合剂,用FTIR、1H NMR、硼含量和羟值测定表征产物结构。采用单因素法和正交实验的方法,探究各系列硼酸酯键合剂的最佳合成条件。结果表明,硼酸酯成环后耐水解性提高;CBA1系列采用酯化法,合成最优工艺为二醇与硼酸的摩尔比为2∶1.4,温度为105℃,收率为98.4%;CBA2系列采用酯交换法,合成最优条件为硼酸、二醇、连接单体的摩尔比为1∶1.05∶0.45,温度为105℃,收率为97.2%。
[Abstract]:In order to solve the problem of easy hydrolysis of borate ester bond agent, two series of eight kinds of cyclic chelate borate bond agents were synthesized by esterification and transesterification. The structure of the product was characterized by FTIR,1H NMR, boron content and hydroxyl value. Single factor method and orthogonal experiment were used to study the optimum synthesis conditions of each series of borate ester bonding agents. The results showed that the hydrolysis resistance of borate ester was improved by esterification method. The optimum reaction conditions were as follows: molar ratio of diol to boric acid was 2: 1.4, temperature was 105 鈩，
本文编号：2256691
[Abstract]:In order to solve the problem of easy hydrolysis of borate ester bond agent, two series of eight kinds of cyclic chelate borate bond agents were synthesized by esterification and transesterification. The structure of the product was characterized by FTIR,1H NMR, boron content and hydroxyl value. Single factor method and orthogonal experiment were used to study the optimum synthesis conditions of each series of borate ester bonding agents. The results showed that the hydrolysis resistance of borate ester was improved by esterification method. The optimum reaction conditions were as follows: molar ratio of diol to boric acid was 2: 1.4, temperature was 105 鈩，
本文编号：2256691
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