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Journal of Zhejiang University SCIENCE A 2000 Vol.1 No.1 P.20-26

http://doi.org/10.1631/jzus.2000.0020


POLYMERIZATION OF METHYL METHACRYLATE WITH IRON-YTTERBIUM DINUCLEAR METALLOCENE CATALYST


Author(s):  PAN Zhi-da, SUN Jun-quan, YANG Shi-lin

Affiliation(s):  Institute of Chemical Engineering, Yuquan Campus of Zhejiang University, Hangzhou 310027, China

Corresponding email(s): 

Key Words:  heterodinuclear catalyst, synergistic effect, lanthanocene, kinetics, polymerization, MMA


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PAN Zhi-da, SUN Jun-quan, YANG Shi-lin. POLYMERIZATION OF METHYL METHACRYLATE WITH IRON-YTTERBIUM DINUCLEAR METALLOCENE CATALYST[J]. Journal of Zhejiang University Science A, 2000, 1(1): 20-26.

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author="PAN Zhi-da, SUN Jun-quan, YANG Shi-lin",
journal="Journal of Zhejiang University Science A",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2000.0020"
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%T POLYMERIZATION OF METHYL METHACRYLATE WITH IRON-YTTERBIUM DINUCLEAR METALLOCENE CATALYST
%A PAN Zhi-da
%A SUN Jun-quan
%A YANG Shi-lin
%J Journal of Zhejiang University SCIENCE A
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%@ 1869-1951
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T1 - POLYMERIZATION OF METHYL METHACRYLATE WITH IRON-YTTERBIUM DINUCLEAR METALLOCENE CATALYST
A1 - PAN Zhi-da
A1 - SUN Jun-quan
A1 - YANG Shi-lin
J0 - Journal of Zhejiang University Science A
VL - 1
IS - 1
SP - 20
EP - 26
%@ 1869-1951
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2000.0020


Abstract: 
A novel iron-ytterbium dinuclear catalyst,FcB(MeCp)Yb (MeCp) Cl (Fc: ferrocenyl, B: diethylene ether),was synthesized for the polymerization of methyl methacrylate (MMA). synergistic effects between the ferrocenyl group and the lanthanocene part were investigated regarding their catalytic behaviors. UV, IR, GPC and NMR were used to characterize the structures of the catalyst and polymer. Kinetic study showed that polymerization is first order in monomer concentration and fractional order (0.78) in the catalyst. The bimetallic complex is a good catalyst for the polymerization of MMA, giving high molecular weight PMMA with 78% syndiotacticity.

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Reference

[1]Chen Shoushan., 1986.Synthesis Handbook of Organometallic Compounds. Chemical Industry Press, Beijing, p.184.

[2]Chen Yaozhu, 1981. Organic analysis. High Education Press, Beijing, p.544.

[3]Diamond, G. M., Green, M. L. H., Popham N. A. et al., 1994. Synthesis of homo and hetero-bimetallic complexes incorporating the [(η5-C5H4)CMe25-C9H6)] ligand. J. Chem. Soc., Chem. Commun., 6:727-728.

[4]Diamond, G. M., Green, M. L. H., Popham, N. A. et al., 1996. New mono- and binuclear ansa-metallocene of zirconium and hafnium as catalyst for the polymerization of ethene and oropene. J. Chem. Soc., Dalton Trans., 6:921-938.

[5]Dombek, B. D., 1985. Synergistic behavior of homogeneous ruthenium-rhodium catalysts for hydrogenation of carbon monoxide. Organometallics, 4:1707-1712.

[6]Duda, A., Penczek, S., 1990. Anionic and pseudoanionic polymerization of ε-caprolactone. Polym. Prepr., 31(1):12-13

[7]Harter, P., Boguth, G., Herdtweck, E. et al., 1989. The first heterodinuclear complexes with bis(cyclopentadienyl)methane bridges. Angew. Chem., Int. Ed. Engl., 28:1008-1009.

[8]Jerschow, A., Ernst, E., Herrman, W. et al., 1995. Nuclear magnetic resonance evidence for a new microstructure in ethene-cyclopentene copolymers. Macromolecules, 28:7095-7099.

[9]Junling, S., Mulhaupt, R., Plenio, H., 1993. Cooperative effects in binuclear zirconocene: their synthesis and use as catalyst in propene polymerization. J. Organomet. Chem., 460:191-195.

[10]Liu Jianfei, Shen Zhiquan, Sun Junquan, 1995. Polymerization of &egr;-caprolactone and lactide with rare earth acetylacetonates. Appl. Chem., 12(6):69-71.

[11]McCollum, D. G., Yap, G. P. A., Rheingold, A. L. et al., 1996. Bimetallic reactivity, synthesis of bimetallic complexes of macrocyclic binucleating ligands containing 6- and 4-coordinate sites and their reactivity with dioxygen and other oxidants. J. Am. Chem. Soc., 118:1365-1379.

[12]Mitani, M., Oouchi, K., Hayakawa, M. et al., 1995. Olefin polymerization catalyzed by homo- or hetero-bimetallic zirconocene complex/Methyl aluminoxane system. Polym. Bull., 35:677-682.

[13]Mitani, M., Oouchi, K., Hayakawa M. et al., 1996. Novel zirconium-iron multinuclear complex catalysts for olefin polymerizations. Bull. Chem. Soc. Jpn., 69:2967-2976.

[14]Nifant'ev, I. E., Borzov, M. V., Churakov, A. V., 1992. Synthesis of bimetallic complexes via 4-stannatetrahydro-5-indacenes. Organometallics, 11:3942-3947.

[15]Ouhadi, T., Hamitou, A., Jerome, R. et al., 1976. Soluble bimetallic μ-oxo-alkoxides. 8. structure and kinetic behavior of the catalytic species in unsubstituted lactone ring-opening polymerization. Macromolecules, 9(6):927-931.

[16]Reddy, K. P., Petersen, J. L., 1989. Synthesis and characterization of binuclear zirconocene complexes linked by a bridged bis(cyclopentadienyl) ligand. Organometallics, 8:2107-2113.

[17]Scott, P., Rief, U., Diebold, J. et al., 1993. Homo- and heterobimetallic bis(fulvalene) complexes from bis(cyclopentadienyl)- and bis(indenyl)-substituted ferrocenes. Organometallics, 12:3094-3101.

[18]Shen Deyan, 1982. Application of IR spectrum in the polymer research. Science Press, Beijing,p.174

[19]Sun Junquan, Pan Zhida, Yang Shilin, 1998. Ring-opening polymerization of &egr;-caprolactone by lanthanocene catalysis. Chinese J. Polym. Sci., 16(4):297-303.

[20]Wang, J. S., Matyjaszewski, K., 1995. Controlled/"living" radical polymerization atom transfer radical polymerization in the presence of transition-metal complexes. J. Am. Chem. Soc., 117:5614-5615.

[21]Webster, O. W., Hertler, W. R., Sogah, D. Y., 1983. Group-transfer polymerization. 1. A new concept for addition polymerization with organsilicon initiators. J. Am. Chem. Soc., 105:5706-5707.

[22]Xie Zuowei, Chui Kwoli, Yang Qingchuan et al., 1998. Synthesis, molecular structure and reactivity of organolanthanide floride complexes, [{(Me3Si)2C5H3}2Ln(μ-F)]2 (Ln=La, Nd, Sm, Gd) and [(C5H5)2Ln(μ-F)(THF)]2 (Ln=Y, Yb). Organometallics, 17:3937-3944.

[23]Zhang Yifeng, Su Qi, Zhang Qin et al., 1994. The kinetics and mechanism of polymerization of methyl methacrylate and butyl methacrylate by coordination of neodymium compound. Polym. Sci., 6:653-657

[24]Zheng Changren., 1986. Molecular weight and molecular weight distribution of polymers. Chemical Industry Press, Beijing, p.640

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