中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (5): 41-44.

• 研究论文 • 上一篇    下一篇

碱金属碳酸盐催化合成酚酞环氧树脂

夏萍, 王巍屹, 薄淑琴, 杨国钧, 陈天禄   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1994-01-17 修回日期:1994-03-30 出版日期:1994-10-10 发布日期:1994-10-10

synthesis of Phenolphthalein Epoxy Resin Catalyzed by Alkali Carbonate

Xia Ping, Wang Weiyi, Bo Shuqin, Yang Guojun, Chen Tianlu   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-01-17 Revised:1994-03-30 Published:1994-10-10 Online:1994-10-10

PDF

401

被引次数

8

摘要： 在碱金属碳酸盐(K2CO3,Na2CO3)/H2O催化下制备了低分子量酚酞环氧树脂。用IR、1H NMR表征了其分子结构,测定了树脂产物的环氧值E和数均分子风及分子量分布,讨论了单体的摩尔比,催化剂含量及水含量对产物的影响,结果表明,在实验范围内,改变酚酞与环氧氯丙烷的摩尔比(1:10～1:4)或酚酞与催化剂的摩尔比(1:2～1:1),均可以得到低分子量酚酞环氧树脂(Mn500～700)。

关键词: 酚酞环氧树脂, 碱金属碳酸盐, 合成

Abstract: A series of low molecular weight phenolphthalein epoxy resins (Mn500～700) have been prepared from phenolphthalein and epichlorohydrin using K2CO3(Na2CO3)/H2O as catalvsts instead of NaOH/H2O. The structures of epoxy resins were characterized by IR and 1H NMR spectra.The epoxy value (E),number average molecular weight (Mn),and molecular weight distributions of the resins were also measured.The effects of the molar ratios of monomer,contents of the catalyst and water on the reaction have been examined.The results indicated that the low molecular weight phenolphthalein epoxy resins can be obtained in a wide range of molar ratios among phenolphthalein,epichlorohydrin and the catalyst(K2CO3,Na2CO3).

Key words: phenolphthalein epoxy resin, alkali carbonate, synthesis

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