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通过脱氢枞酸钠(DHANa)和3-氯-2-羟丙基三甲基氯化铵(CTA)反应,以制备(3-脱氢枞酰氧基-2-羟基)丙基三甲基氯化铵(DHAHPTMC),考察了溶剂类型、反应温度和时间及物料比对产物收率的影响,用FTIR和~1H NMR表征了产物结构,表面张力法研究了产物的表面活性。实验结果表明,当CTA与DHANa物质的量比为3.0,异戊醇为反应溶剂,在回流条件下反应12.0h,DHAHPTMC的收率可达82%;研究结果还表明,DHAHPTMC的临界胶束浓度(cmc)为4.25×10~(-3)mol/L,cmc时对应的表面张力(γ_(cmc))为38.62 mN/m,能够实现的最低表面张力(γ_(min))在36.6mN/m左右。
Was reacted with sodium dehydroabietate (DHANa) and 3-chloro-2-hydroxypropyltrimethylammonium chloride (CTA) to prepare (3-dehydroabryloxy-2-hydroxy) The effects of solvent type, reaction temperature and time, and material ratio on the yield of the product were investigated. The structure of the product was characterized by FTIR and 1H NMR. The surface tension of the product was investigated by surface tension method. The experimental results show that when the molar ratio of CTA to DHANa is 3.0, isoamyl alcohol is the reaction solvent and reacted at reflux for 12.0h, the yield of DHAHPTMC can reach 82%. The results also show that the critical micelle concentration (cmc) was 4.25 × 10 -3 mol / L, the corresponding surface tension (cmc) was 38.62 mN / m cmc and the lowest achievable surface tension (γ min) was 36.6 mN / m or so.