Alternating Copolymerization of Isoprene with Maleic Anhydride by Rare Earth Coordination Catalyst

Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (6): 1049.

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Alternating Copolymerization of Isoprene with Maleic Anhydride by Rare Earth Coordination Catalyst

HU Zhi-Guo, ZHANG Yi-Feng, SHEN Zhi-Quan

Institute of Polymer Science, Zhejiang University, Hangzhou 310027, China

Received:2000-05-17 Online:2001-06-24 Published:2001-06-24

Abstract

Abstract: Alternating copolymerization of isoprene with maleic anhydride was carried out by rare earth coordination catalyst[Nd(naph)₃-AlEt-3] for the first time. The better copolymerization conditions are: [M]_total=2.6 mol/L, n(Al)/n(Nd)=10, [Nd]=5×10^-3 mol/L, V(toluene)/V(dioxane)=2/5 as solvent, 5 ℃, 2 h. Copolymer yield was 70%. The copolymer was characterized by elemental analysis, IRand ¹³C NMR.

Key words: Rare earth catalyst, Maleic anhydride, Isoprene, Alternating copolymerization

CLC Number:

O632

TrendMD:

HU Zhi-Guo, ZHANG Yi-Feng, SHEN Zhi-Quan . Alternating Copolymerization of Isoprene with Maleic Anhydride by Rare Earth Coordination Catalyst[J]. Chem. J. Chinese Universities, 2001, 22(6): 1049.

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Alternating Copolymerization of Isoprene with Maleic Anhydride by Rare Earth Coordination Catalyst

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