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Synthesis and characterization of a new kind of immobilized Mn(salen) and catalytic epoxidation of styrene on the catalyst
被引:15
|作者:
Shen, Hongsheng
[1
]
Fu, Xiangkai
[1
]
Bao, Hebin
[1
]
Chen, Junxian
[1
]
Gong, Biwei
[1
]
机构:
[1] Southwest Univ, Res Inst Appl Chem, Key Lab Appl Chem Chongqing Municipal, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China
关键词:
copolymerization;
functionalization of polymers;
hydroxylation;
axial immobilization;
catalysis;
PHOSPHONATE HYDROGEN PHOSPHATE;
ALPHA-ZIRCONIUM PHOSPHATE;
ENANTIOSELECTIVE EPOXIDATION;
UNFUNCTIONALIZED OLEFINS;
MESOPOROUS MATERIALS;
COMPLEXES;
EPOXIDES;
EXCHANGE;
D O I:
10.1002/pat.1214
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
A linear polystyrene-isopropenyl phosphonic acid (PS-IPPA) copolymer was newly synthesized by free radical reaction in solution with isopropenyl phosphonic acid (IPPA) and styrene. Zirconium poly(styrene-isopropenyl phosphonate)-phosphate acid (ZPS-IPPA) was also synthesized. The benzene rings of ZPS-IPPA were hydroxylated and then further reacted with Mn(salen)CI. Thus the heterogeneous catalyst, Mn(salen) axially immobilized onto ZPS-IPPA was synthesized. These substances were characterized by IR spectra, X-ray diffraction (XRD), SEM, TEM, NMR, thermo-gravimetric analysis, and AAS. The catalyst showed good activity to epoxidation of styrene, which is close to that of the corresponding homogeneous catalyst. Copyright (C) 2008 John Wiley & Sons, Ltd.
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页码:77 / 83
页数:7
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