Electrochemically reduced tungsten-based active species as catalysts for metathesis-related reactions: ring-opening metathesis copolymerization of cyclopentene with cyclooctene


Karabulut S., Cetinkaya S. , Imamoglu Y.

APPLIED ORGANOMETALLIC CHEMISTRY, vol.19, no.9, pp.997-1001, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 9
  • Publication Date: 2005
  • Doi Number: 10.1002/aoc.921
  • Title of Journal : APPLIED ORGANOMETALLIC CHEMISTRY
  • Page Numbers: pp.997-1001

Abstract

The ring-opened metathesis copolymerization of cyclopentene with cyclooctene by an electrochemically generated WCl6-based catalyst has been prepared and C-13 NMR spectroscopy used to analyse in detail the nature of the homo- and hetero-dyad units. This copolymer was characterized by gel-permeation chromatography (M-n, = 12 900, PDI= 2.2) and differential scanning calorimetry analysis. The glass-transition temperature T-g of the copolymer was -18.7 degrees C. Homopolymerization of cyclopentene is also reported to compare with copolymers produced in this work. Copyright (c) 2005 John Wiley & Sons, Ltd.