学术论文

      丙烯酸与莰烯加成制备丙烯酸异冰片酯(IBOA)的动力学研究

      Synthesis kinetics of isobornyl acrylate by addition reaction of acrylic acid and camphene

      摘要:
      以磺酸改性的SBA-15(SO3H-SBA-15)为催化剂,丙烯酸与莰烯为原料加成反应制备丙烯酸异冰片酯(IBOA).在转速600 r/min下消除外扩散的影响,并采集反应动力学数据.将SO3H-SBA-15催化莰烯异构化副反应生成的α-松油烯、柠檬烯、葑烯归类为异构烯烃,与丙烯酸加成生成的相应丙烯酸酯归类为丙烯酸异构酯,采用拟一级动力学模型进行数据回归,得到丙烯酸与莰烯加成酯化、烯烃异构以及异构烯烃酯化反应的反应热分别为-9.41、-31.32和-13.39 kJ/mol,动力学拟合结果与实验数据吻合良好,并且通过统计检验,表明动力学模型是可靠的.
      Abstract:
      The addition reaction of camphene with acrylic acid to prepare isobornyl acrylate (IBOA) was carried out over sulfonic acid functionalized SBA-15 (SO3H-SBA-15).Kinetic experimental data were obtained with the eliminated external diffusion at the stirring speed of 600 r/min.The α-terpinene,limonene,fenchene derived from the isomerization of camphene catalyzed by SO3H-SBA-15 were treated as isomeric olefins,and the corresponding acrylic esters generated by addition of acrylic acid and isomeric olefins were regarded as isomeric acrylate.From the established pseudo-first-order kinetic model,the parameters were regressed.The reaction heat of addition esterification of acrylic acid and camphene,isomerization of camphene,and esterification of isomeric olefins was-9.41,-31.32 and-13.39 kJ/mol,respectively.The correlated results agreed well with the experimental data,and the statistic test results indicated that the kinetic model was reliable.
      Author: ZHANG Tingjian TANG Jihai FEI Zhaoyang CHEN Xian CUI Mifen QIAO Xu
      作者单位: 南京工业大学 化工学院 材料化学工程国家重点实验室,江苏南京,210009
      年,卷(期): 2017, 39(3)
      分类号: TQ351
      在线出版日期: 2017年7月3日
      基金项目: 国家自然科学基金,江苏省"六大人才高峰"