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Nickel (salen) / methylaluminoxane catalyzed polymerization of norbornene

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Summary

Nickel (salen) in conjunction with methylaluminoxane (MAO) catalyzes the polymerization of norbornene to poly (2,3-bicyclo [2.2.1] hept-2-ene) [poly (norbornene)]. Methylaluminoxane (MAO) was used as cocatalyst as such (MAO-I) and after distilling off free trimethylaluminium (MAO-II). The catalyst system was very active in chlorobenzene at room temperature. It was also found that MAO-II gave higher activity as compared to MAO-I. The samples of polynorbornene were soluble in 1,2,4-trichlorobenzene. The poly (norbomene)s were characterized by intrinsic viscosity and thermal properties.

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Authors and Affiliations

  1. Polymer Chemistry Division, National Chemical Laboratory, Pune-411008, India, , , , , , IN

    S. Borkar & P. K. Saxena

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  1. S. Borkar
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  2. P. K. Saxena
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Received: 4 November 1999/Revised version: 25 January 2000/Accepted: 31 January 2000

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Borkar, S., Saxena, P. Nickel (salen) / methylaluminoxane catalyzed polymerization of norbornene. Polymer Bulletin 44, 167–172 (2000). https://doi.org/10.1007/s002890050588

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  • DOI: https://doi.org/10.1007/s002890050588

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