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Citation: Kang Ruhong, Fan Fengge, He Yanzhang, Zhang Lanping. SILICA GEL SUPPORTED POLYETHYLENE GLYCOLS FOR PHASE TRANSFER CATALYSIS[J]. Chinese Journal of Applied Chemistry, ;1989, 6(3): 78-80. shu

SILICA GEL SUPPORTED POLYETHYLENE GLYCOLS FOR PHASE TRANSFER CATALYSIS

1.
Department of Chemistry, Hebei Teacher's University, Shijiazhuang

Received Date: 13 July 1988
Available Online: 28 October 1988

Polyethylene glycols with different mean molecular weight (200-1000) were immobilizedon to silica gels. They all exhibited a certain catalytic activity in esterification and some nucleophilic substitution reactions. The influence of the chain length of polyethylene glycol,the dosage of catalyst used and the polarity of the solvents on the catalytic activity were studied. The catalysts could be used repeatedely seven times with little loss of its activity.
- Silica gel,
- Polyethylene glycol,
- Catalytic activity,
- Esterification,
- Nucleophilic substitution
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