Synthesis of fatty alcohols polyoxyethylene ether acrylates and analysis of influencing factors
Fatty alcohol polyoxyethylene ether acrylate was synthesized directly from fatty alcohol polyoxy-ethylene ether and acrylic acid by esterification reaction,using p-toluenesulfonic acid as catalyst and hy-droquinone as polymerization inhibitor.The effects of reactant feeding ratio,catalyst dosage,catalyst type,reaction temperature and reaction time on the esterification reaction were investigated.The results showed that the suitable synthesis process conditions were:n(aliphatic alcohol ethoxylate)∶n(acrylic acid)= 1∶3,the amount of catalyst p-toluenesulfonic acid was 1%(mass fraction of aliphatic alcohol ethoxylate),the reaction temperature was 120℃,the reaction time was 3 h,and the amount of resorcinol was 0.05%(mass fraction of acrylic acid).Under the above conditions,the conversion of the esterification reaction could reach 90.70%.
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