P33凌俊利张军营新型含呋喃环的环氧树脂的合成与表征.pdfVIP

Synthesis and characterization of a new epoxy resin with furan ring 新型含呋喃环的环氧树脂的合成与表征 Ling Junli, Zhang Junying ﹡ Lab.of Adhesive and In-situ Polymerization Technology School of Materials Science ＆ Engineering Beijing University of Chemical Technology 100029 凌俊利 张军营﹡ 胶接材料与原位固化技术研究室 材料科学与工程学院 北京化工大学 100029 Abstract: Bis(4-hydroxy-3,5-di-methylphenyl)-furylmethane has been synthesized by condensation reaction using 2,6-xylenol and furfural as starting materials，sodium hydroxide as catalyst，and a novel furan epoxy resin has been prepared by two-step approach condensation of Bis(4-hydroxy-3,5-di-methylphenyl)-furylmethane with 1 13 epichlorohydrine. FT-IR, H-NMR and C-NMR spectroscopy showed that bis(4-hydroxy-3,5-di-methylphenyl)-furylmethane was the right product and the furan epoxy resin was a multi-functional epoxy resin with furan ring. Viscosity, molecular weight and epoxy value measurements gave consistent values. The new epoxy was freely soluble in the most organic solvent, especially in alcohols, indicating its practical utility. Key words: furylmethane, epoxy resin, furan ring, two-step approach 摘要：本文以2,6-二甲基苯酚和糠醛为原料，氢氧化钠为催化剂，催化缩合而成4,4-二（3,5-二甲基-4 羟苯 基）呋喃甲烷，并以此呋喃甲烷和环氧氯丙烷为原料通过二步法缩合聚合得到了新型含呋喃的环氧树脂。 1 13 通过FT-IR 、H-NMR 和 C-NMR 谱图证明了4,4-二（3,5-二甲基-4 羟苯基）呋喃甲烷和含呋喃环的环氧树 脂的结构，同时测定了树脂的粘度、分子量和环氧值。该树脂在大部分有机溶剂中具有很好的溶解性能， 特别是醇类溶剂中，具有良好的使用性能。 关键词：呋喃甲烷，环氧树脂，呋喃环，二步法 1. Introduction Epoxy resin by virtue of having high adhesive, low curing shrinkage, good solvent resistance and well chemical resistance in the form of cured products , electric insulativity and mechanical property, are wide