Esterification Synthesis Methylacrylic Acid Polyethylene Glycol Single Methyl Ether(400) Ester
Tan Hongbo
2007
Citations
1
Citations
Journal
Journal of Wuhan University of Technology
Semantic Scholar
Key Takeaway Key Takeaway: The esterification process for methylacrylic acid polyethylene glycol single methyl ether(400) ester can achieve 98.9% production rate and is extremely similar to the overseas product functional group structure.
Abstract
Under the catalyst,the polymerization retarder,the including water medicinal preparation existence condition,the methylacrylic acid and the polyethylene glycol single methyl ether(400) direct esterification synthesis methylacrylic acid polyethylene glycol single methyl ether(400) ester,and the influence factors of the catalyst,polymerization retarder,including water medicinal preparation has mellowly carried on the comparison.The research indicated that under the compound use of hydroquinone and methyl quinone or independent use of phenothiazines or nitrogen oxygen free radical made the polymerization retarder,opposite-methyl-phenylsulfon made the esterification catalyst,toluol made the backflow including water condition,the acid mellowly compared to when it was 1.15, the production rate of the synthesis methylacrylic acid polyethylene glycol single methyl ether(400) ester may achieve 98.9%,was extremely similar to the overseas product functional group structure.