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Polynorbornene: synthesis, properties and simulations

✍ Scribed by Thomas F. A. Haselwander; Walter Heitz; Stefan A. Krügel; Joachim H. Wendorff

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
860 KB
Volume
197
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

The vinylic polymerization of norbornenes upon catalysis with Pd^2+^ complexes with norbornylnitrile as ligands is reported. The polynorbornenes (M̄~w~ = 10^6^) display a set of unique properties including a dense packing in the amorphous state, high glass transition temperatures, large refractive index, low birefringence and significant brittleness. To test the concept that these properties can be traced back to the conformational constraints of the polymer chains, we performed ab initio calculations, semi‐empirical quantum mechanical calculations and force‐field calculations employing a force field developed by us for polynorbornenes.

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