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林产化学与工业 ›› 2009, Vol. 29 ›› Issue (6): 57-60.

• 研究报告 • 上一篇    下一篇

丙烯酸松香与乙二醇二缩水甘油醚预聚体的合成和性能研究

马一静1,2, 沈敏敏1, 李因文1,2, 哈成勇1   

  1. 1. 中国科学院纤维素化学重点实验室, 广州化学研究所, 广东 广州 510650;2. 中国科学院 研究生院, 北京 100039
  • 收稿日期:2008-12-18 修回日期:1900-01-01 出版日期:2009-12-30 发布日期:2009-12-30
  • 通讯作者: 沈敏敏,研究员,硕士生导师,主要从事天然产物化学的研究;E-mail:shenmm@gic.ac.cn。

Synthesis and Properties of the Prepolymer from Acrylic Acid Rosin and Ethylene Diglycidyl Ether

MA Yi-jing1,2, SHEN Min-min1, LI Yin-wen1,2, HA Cheng-yong1   

  1. 1. Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China;2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2008-12-18 Revised:1900-01-01 Online:2009-12-30 Published:2009-12-30

摘要: 丙烯酸松香与乙二醇二缩水甘油醚酯化合成环氧树脂预聚体。探讨了反应温度、催化剂用量等因素对反应的影响,得到最优条件为三乙胺用量 0.02%(以丙烯酸松香质量计),反应温度 130℃,反应时间 5 h。预聚体的环氧值 0.19 mol/100 g,黏度 16.3 Pa·s(36℃),酸值 0.4 mg/g。采用差示扫描量热分析(DSC)、FT-IR等方法研究了固化物性能。结果表明,甲基六氢苯酐(MeHHPA)为固化剂,当m(MeHHPA):m(预聚体)8:10,固化条件为:预聚 100℃,反应 2 h,190℃ 固化 5 h,固化物的玻璃化转变温度(Tg)最高(53.0℃)。

关键词: 丙烯酸松香, 乙二醇二缩水甘油醚, 环氧树脂, 性能

Abstract: Prepolymer from acrylic acid rosin and ethylene diglycidyl ether was prepared by esterification between acrylic acid rosin and ethylene diglycidyl ether. Influences of temperature and the amount of catalyst on the reaction were investigated. The optimum experimental condition was as follows:c(Et3N)0.02%(based on acrylic acid rosin), 130℃ and 5 h. The prepolymer had the following properties:epoxy value 0.19 mol/100 g, viscosity (36℃) 16.3 Pa·s, acid value 0.4 mg/g. Property of the cured product was studied by differential scanning calorimetry (DSC) and FT-IR. The glass transition temperature (Tg) of the cured product reached 53.0℃ when curing condition was as follows:m(MeHHPA):m(prepolymer)8:10, pre-polymerized at 100℃ for 2 h, cured at 190℃ for 5 h.

Key words: acrylic acid rosin, ethylene diglycidyl ether, epoxy rosin, property

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