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Molecules 2015, 20(9), 15597-15615; doi:10.3390/molecules200915597

Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs’ 1st-Generation Catalyst

1
Industrial Chemistry Laboratory, Department of Chemistry, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
2
Inorganic Chemistry Laboratory, Department of Chemistry, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Georgios C. Vougioukalakis
Received: 26 June 2015 / Revised: 18 August 2015 / Accepted: 19 August 2015 / Published: 27 August 2015
(This article belongs to the Special Issue Olefin Metathesis)
View Full-Text   |   Download PDF [841 KB, uploaded 27 August 2015]   |  

Abstract

Statistical copolymers of norbornene (NBE) with cyclopentene (CP) were prepared by ring-opening metathesis polymerization, employing the 1st-generation Grubbs’ catalyst, in the presence or absence of triphenylphosphine, PPh3. The reactivity ratios were estimated using the Finemann-Ross, inverted Finemann-Ross, and Kelen-Tüdos graphical methods, along with the computer program COPOINT, which evaluates the parameters of binary copolymerizations from comonomer/copolymer composition data by integrating a given copolymerization equation in its differential form. Structural parameters of the copolymers were obtained by calculating the dyad sequence fractions and the mean sequence length, which were derived using the monomer reactivity ratios. The kinetics of thermal decomposition of the copolymers along with the respective homopolymers was studied by thermogravimetric analysis within the framework of the Ozawa-Flynn-Wall and Kissinger methodologies. Finally, the effect of triphenylphosphine on the kinetics of copolymerization, the reactivity ratios, and the kinetics of thermal decomposition were examined. View Full-Text
Keywords: Ring Opening Metathesis Polymerization (ROMP); norbornene; cyclopentene; copolymerization; thermogravimetric analysis (TGA) Ring Opening Metathesis Polymerization (ROMP); norbornene; cyclopentene; copolymerization; thermogravimetric analysis (TGA)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nikovia, C.; Maroudas, A.-P.; Goulis, P.; Tzimis, D.; Paraskevopoulou, P.; Pitsikalis, M. Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs’ 1st-Generation Catalyst. Molecules 2015, 20, 15597-15615.

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