Synthesis of plasticizer ester using acid-functionalized ionic liquid as catalyst.
Several plasticizer esters were synthesized by using acid-functionalized ionic liquids as catalyst. The results indicated that HSO3-functionalized Brønsted acidic ionic liquids show better catalytic and reusable performance than non-functionalized ionic liquids. For each plasticizer ester examined, one or two ionic liquids with high catalytic activity were chosen. Especially, the ionic liquids could be separated easily from the products and be reused at least six times with the conversion of the acid not less than 95%. Therefore, an environmental friendly approach for the synthesis of plasticizer ester is provided.
Xie
Congxia
C
Key Laboratory of Eco-Chemical Engineering, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, People's Republic of China.
Li
Hongliang
H
Li
Lu
L
Yu
Shitao
S
Liu
Fusheng
F
D000143:Acids / Q000737:chemistry*; D002384:Catalysis; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002625:Chemistry, Organic / Q000379:methods; D004951:Esterification; D004952:Esters / Q000138:chemical synthesis* / Q000737:chemistry; D007477:Ions; D008956:Models, Chemical; D015394:Molecular Structure; D010968:Plasticizers / Q000138:chemical synthesis* / Q000737:chemistry; D012997:Solvents
D000143:Acids; D004952:Esters; D007477:Ions; D010968:Plasticizers; D012997:Solvents