Polymerization of 2-allylnorbornane using Ziegler-Natta catalysts: copolymerization with ethylene

Marathe, S. ; Mohandas, T. P. ; Sivaram, S. (1995) Polymerization of 2-allylnorbornane using Ziegler-Natta catalysts: copolymerization with ethylene Macromolecules, 28 (22). pp. 7318-7324. ISSN 0024-9297

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ma00126a005

Related URL: http://dx.doi.org/10.1021/ma00126a005

Abstract

The copolymerization of ethylene with 2-allylnorbornane (2-ANB) was studied using Ziegler-Natta and homogeneous metallocene catalysts. The copolymers were characterized by IR, NMR, XRD, GPC, and thermal methods. It was found that the copolymers obtained using the TiCl4/TIBAL catalyst were heterogeneous and blocky in nature while those obtained using Cp2ZrC12/methylaluminoxane (MAO) were homogeneous and random in nature. A comparison between ethylene-2-ANB (norbornyl pendant) and ethylene-4-methyl-1-pentene (isopropyl pendant) copolymers led to the conclusion that both the isopropyl and norbornyl pendant give rise to a similar lowering in the values of ΔHf and Tm.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:70132
Deposited On:18 Nov 2011 12:58
Last Modified:18 Nov 2011 12:58

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