Pd(II)-catalyzed vinylic polymerization of norbornene and copolymerization with norbornene and copolymerization with norbornene carboxylic acid esters
β Scribed by Beate S. Heinz; Frank P. Alt; Water Heitz
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 532 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1022-1336
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## Abstract Summary: In nonβpolar solvents such as toluene, CpβNi and βPd complexes (Cpβ=β__Ξ·__^5^βC~5~H~5~) with appropriate activators have been found to induce the addition polymerization of norbornene in excellent yields, for example (Cp)Pd(allyl)/[Ph~3~C][B(C~6~F~5~)~4~] gave 105β120 kgβpolyme
In this article we will discuss the synthesis of the new copolymers of norbornene derivatives with an ester group and carbon monoxide, using Pd(CH 3 CN) 4 (BF 4 ) 2 as a catalyst and 2,2 -bipyridine as a ligand in nitromethane/methanol at 60ΠC. Elementary analysis, infrared spectra, and NMR spectra
## Abstract Pd(II) catalysts with nitrilo ligands and BF~4~^β^ counter ions give the best results in vinylic polymerization of norbornene. Absolute molecular weight determination of polynorbornene (PN) by means of light scattering and the threeβdimensional shape of PN were also investigated. By cor