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Synthesis of trimethylolpropane tris-acrylate catalyzed by calcium sulfate whisker

Tian Yan-wen

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Abstract

Trimethylolpropane tris-acrylate (TMPTA) has been obtained by the reaction of trimethylolpropane (TMP) and acrylic acid (AA) with calcium sulfate whisker as catalyst and cyclohexane and toluene as water-carrying agent.The effects of ratio of TMP to AA and the amount of catalyst on the reaction were investigated.The results showed that esterification rate of TMPTA can reach above 96.8% and its purity is 97.6%,respectively,under optimal reaction conditions of n(AA)∶n(TMP)=3.40,catalyst concentration of 2.0%,mixed water-carrying agents and in the presence of polymerization inhibitor,reaction temperature 98 ℃,reaction time 5 h,flow of air 15 mL/min.

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What this paper is about

Trimethylolpropane tris-acrylate (TMPTA) has been obtained by the reaction of trimethylolpropane (TMP) and acrylic acid (AA) with calcium sulfate whisker as catalyst and cyclohexane and toluene as water-carrying agent.The effects of ratio of TMP to AA and the amount of catalyst on the reaction were investigated.The results showed that esterification rate of TMPTA can reach above 96.8% and its purity is 97.6%,respectively,under optimal reaction conditions of n(AA)∶n(TMP)=3.40,catalyst concentration of 2.0%,mixed water-carrying agents and in the presence of polymerization inhibitor,reaction temperature 98 ℃,reaction time 5 h,flow of air 15 mL/min.

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Available abstract

Trimethylolpropane tris-acrylate (TMPTA) has been obtained by the reaction of trimethylolpropane (TMP) and acrylic acid (AA) with calcium sulfate whisker as catalyst and cyclohexane and toluene as water-carrying agent.The effects of ratio of TMP to AA and the amount of catalyst on the reaction were investigated.The results showed that esterification rate of TMPTA can reach above 96.8% and its purity is 97.6%,respectively,under optimal reaction conditions of n(AA)∶n(TMP)=3.40,catalyst concentration of 2.0%,mixed water-carrying agents and in the presence of polymerization inhibitor,reaction temperature 98 ℃,reaction time 5 h,flow of air 15 mL/min.

Key concepts: TMPTA, Trimethylolpropane, Catalysis, Chemistry, Cyclohexane, Polymer chemistry, Acrylate, Acrylic acid

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Synthesis of trimethylolpropane tris-acrylate catalyzed by calcium sulfate whisker — Research Paper | ScholarLens