2014•Chemical ResearchRequires access
Synthesis of iso-butyl acrylate under catalysis of sodium bisulfate monohydrate
Zhang Xiao-hu
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Abstract
Iso-butyl acrylate was synthesized in high yield through the esterification of acrylic acid and iso-butanol under the catalysis of sodium bisulfate monohydrate.The effects of sodium bisulfate monohydrate dosage,iso-butyl alcohol dosage,reaction time,temperature and polymerization inhibitor dosage on the yield of iso-butyl acrylate were investigated.It was found that,when the molar ratio of iso-butyl alcohol to acrylic acid is fixed at 3∶1,the molar ratio of sodium bisulfate monohydrate to acrylic acid is fixed at 2%,the mass ratio of polymerization inhibitor(hydroquinone)to acrylic acid is fixed at 0.05%,the yield of the ester could reach 88.51% under a reaction temperature of 115℃ and a reflux reaction time of 3h.