Synthesis and characterization of polyoctenamer with WCl6?e−?Al?CH2Cl2 catalyst system via ring‐opening metathesis polymerization |
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Authors: | Sevil etinkaya Solmaz Karabulut Bülent Düz Yavuz Ïmamolu |
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Institution: | Sevil Çetinkaya,Solmaz Karabulut,Bülent Düz,Yavuz Ïmamo?lu |
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Abstract: | A typical low‐strain monomer, cyclooctene, was polymerized via ring‐opening metathesis polymerization with electrochemically produced active species. The structural properties of the polyoctenamer were determined by NMR, gel‐permeation chromatography and differential scanning calorimetry. Analysis of the polyoctenamer microstructure by 1H and 13C NMR spectroscopy indicates that the polymer contains a highly cis stereoconfiguration of the double bonds (σc = 0.75). The resulting polymer is of low molecular weight and has a reasonably broad molecular weight distribution (Mw = 18 000, PDI = 1.9). The glass transition temperature and melting point of the polyoctenamer are ?11.3 °C and 36.5 °C respectively. Copyright © 2005 John Wiley & Sons, Ltd. |
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Keywords: | electrocatalysis cyclooctene ROMP tungsten hexachloride electrochemistry |
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