The catalytic polymerization of phenylacetylene and p-tolylacetylene under homogeneous and heterogeneous conditions is described. The catalysts used are either (cod)Rh(AAEMA) [cod: 1,5-cyclooctadiene, AAEMA−: deprotonated form of 2-(acetoacetoxy)ethylmethacrylate] or the supported metal complex obtained by thermal copolymerization of (cod)Rh(AAEMA) with suitable comonomers and cross-linkers. Complexes of general formula (diene)Rh(acac) [diene: 2,5-norbornadiene (nbd) or 1,5-cyclooctadiene (cod)] have also been used for comparison. High yields in poly(arylacetylene) are achieved in the homogeneous phase for both substrates using THF as solvent at room temperature even in the absence of any co-catalyst. The use of the supported rhodium(I) catalyst facilitates the polymerization of arylacetylenes yielding, in the case of poly(phenylacetylene) (PPA), a polymer having high stereoregularity and higher molecular weight respect to that obtained in homogeneous phase. A new correlation between IR data and the cis-percentage of PPA is proposed and discussed.

Polymerization of phenylacetylene and of p-tolylacetylene catalyzed by β-dioxygenato rhodium(I) complexes in homogeneous and heterogeneous phase / Mastrorilli, Pietro; Nobile, Cosimo Francesco; Rizzuti, Antonino; Suranna, Gian Paolo; Acierno, Domenico; Amendola, Eugenio. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - STAMPA. - 178:1-2(2002), pp. 35-42. [10.1016/S1381-1169(01)00291-6]

Polymerization of phenylacetylene and of p-tolylacetylene catalyzed by β-dioxygenato rhodium(I) complexes in homogeneous and heterogeneous phase

Piero Mastrorilli;Cosimo Francesco Nobile;Antonino Rizzuti;Gian Paolo Suranna;
2002-01-01

Abstract

The catalytic polymerization of phenylacetylene and p-tolylacetylene under homogeneous and heterogeneous conditions is described. The catalysts used are either (cod)Rh(AAEMA) [cod: 1,5-cyclooctadiene, AAEMA−: deprotonated form of 2-(acetoacetoxy)ethylmethacrylate] or the supported metal complex obtained by thermal copolymerization of (cod)Rh(AAEMA) with suitable comonomers and cross-linkers. Complexes of general formula (diene)Rh(acac) [diene: 2,5-norbornadiene (nbd) or 1,5-cyclooctadiene (cod)] have also been used for comparison. High yields in poly(arylacetylene) are achieved in the homogeneous phase for both substrates using THF as solvent at room temperature even in the absence of any co-catalyst. The use of the supported rhodium(I) catalyst facilitates the polymerization of arylacetylenes yielding, in the case of poly(phenylacetylene) (PPA), a polymer having high stereoregularity and higher molecular weight respect to that obtained in homogeneous phase. A new correlation between IR data and the cis-percentage of PPA is proposed and discussed.
2002
Polymerization of phenylacetylene and of p-tolylacetylene catalyzed by β-dioxygenato rhodium(I) complexes in homogeneous and heterogeneous phase / Mastrorilli, Pietro; Nobile, Cosimo Francesco; Rizzuti, Antonino; Suranna, Gian Paolo; Acierno, Domenico; Amendola, Eugenio. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - STAMPA. - 178:1-2(2002), pp. 35-42. [10.1016/S1381-1169(01)00291-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/5859
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