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Fractionation of poly(vinyl methyl ether) / Simona Morariu in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6943–6948 Titre : Fractionation of poly(vinyl methyl ether) : comparison of two large-scale fractionation techniques Type de document : texte imprimé Auteurs : Simona Morariu, Auteur ; John Eckelt, Auteur ; Bernhard A. Wolf, Auteur Année de publication : 2009 Article en page(s) : pp. 6943–6948 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Continuous  polymer  fractionation  Continuous  spin  fractionation  Poly(vinyl  methyl  ether) Résumé : The efficiencies of two large-scale fractionation techniques namely continuous polymer fractionation (CPF) and continuous spin fractionation (CSF) are compared. To this end, we used a commercially available sample of poly(vinyl methyl ether). Both methods are suitable to reduce the nonuniformity of the sample below 0.6. The results demonstrate that CSF has a better fractionation performance than the progenitor method, CPF. A further advantage is the three times higher throughput of CSF. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900484g [article] Fractionation of poly(vinyl methyl ether) : comparison of two large-scale fractionation techniques [texte imprimé] / Simona Morariu, Auteur ; John Eckelt, Auteur ; Bernhard A. Wolf, Auteur . - 2009 . - pp. 6943–6948. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6943–6948 Mots-clés : Continuous  polymer  fractionation  Continuous  spin  fractionation  Poly(vinyl  methyl  ether) Résumé : The efficiencies of two large-scale fractionation techniques namely continuous polymer fractionation (CPF) and continuous spin fractionation (CSF) are compared. To this end, we used a commercially available sample of poly(vinyl methyl ether). Both methods are suitable to reduce the nonuniformity of the sample below 0.6. The results demonstrate that CSF has a better fractionation performance than the progenitor method, CPF. A further advantage is the three times higher throughput of CSF. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900484g

Vapor pressures of polymer solutions and the modeling of their composition dependence / Maria Bercea in Industrial & engineering chemistry research, Vol. 48 N° 9 (Mai 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4603–4606 Titre : Vapor pressures of polymer solutions and the modeling of their composition dependence Type de document : texte imprimé Auteurs : Maria Bercea, Auteur ; John Eckelt, Auteur ; Bernhard A. Wolf, Auteur Année de publication : 2009 Article en page(s) : pp. 4603–4606 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Vapor  pressures  Poly(vinyl  methyl  ether)  Polystyrene  Tetrahydrofuran Résumé : Equilibrium vapor pressures, p, are reported for the systems tetrahydrofuran + poly(vinyl methyl ether) and tetrahydrofuran + polystyrene at 20, 40, and 60 °C. These data plus information from the literature serve to demonstrate that the composition dependence of p can be modeled quantitatively for polymer solutions in thermodynamically very different solvents by means of three, physically meaningful parameters. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801965h [article] Vapor pressures of polymer solutions and the modeling of their composition dependence [texte imprimé] / Maria Bercea, Auteur ; John Eckelt, Auteur ; Bernhard A. Wolf, Auteur . - 2009 . - pp. 4603–4606. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4603–4606 Mots-clés : Vapor  pressures  Poly(vinyl  methyl  ether)  Polystyrene  Tetrahydrofuran Résumé : Equilibrium vapor pressures, p, are reported for the systems tetrahydrofuran + poly(vinyl methyl ether) and tetrahydrofuran + polystyrene at 20, 40, and 60 °C. These data plus information from the literature serve to demonstrate that the composition dependence of p can be modeled quantitatively for polymer solutions in thermodynamically very different solvents by means of three, physically meaningful parameters. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801965h