酚醛环氧树脂季铵盐的合成及表征

Synthesis and characterization of quaternary ammonium salt groups epoxy phenolic resin

利用三乙胺盐酸盐与酚醛环氧树脂进行开环反应合成了酚醛环氧树脂季铵盐。通过对其溶解性和季铵离子含量的测定 ,研究了相转移催化剂、反应物配比、反应温度、反应时间等对季铵化反应的影响。结果表明 :相转移催化剂对反应的影响不大 ,反应有自催化作用 ;当三乙胺盐酸盐与环氧基的物质的量比为 1∶1 ,反应温度为 80℃ ,反应 5h时 ,三乙胺盐酸盐的转化率可以达到 95 .6%。

The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride. The effects of phase transfer catalyst,reactant proportion,reaction temperature and time on quaterisation were studied.The results showed that no phase transfer catalyst was needed to accelerate the reaction,since the product formed could act as a phase tranfer catalyst.The conversion of triethylamine hydrochloride was 95.6%.The product was characterized by IR.