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Experimental study of the effect of reflux rate during suspension polymerization on particle properties of PVC resin / Nasrin Etesami in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp.1997–2002 Titre : Experimental study of the effect of reflux rate during suspension polymerization on particle properties of PVC resin Type de document : texte imprimé Auteurs : Nasrin Etesami, Auteur ; Mohsen Nasr Esfahany, Auteur ; Roohollah Bagheri, Auteur Année de publication : 2010 Article en page(s) : pp.1997–2002 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Chemistry;  Particle  PVC;  Polymerization;  Resin Résumé : The particle morphological properties of poly(vinyl chloride) produced by suspension polymerization in a pilot-scale reactor under different reflux rates have been investigated. It was found that the monomer conversion decreased with increasing reflux rate. It was also observed that the cold plasticizer absorption (CPA) increased with reflux rate, whereas the bulk density (BD) and K value of the resin decreased. SEM micrographs showed that PVC resin with a rougher particle surface, more separate aggregates, and smaller primary particles was prepared at higher reflux rates. The particle size distribution determined by laser size analysis showed that the standard deviation of the particle size distribution and the mean particle size did not change significantly with reflux rate. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9008259 [article] Experimental study of the effect of reflux rate during suspension polymerization on particle properties of PVC resin [texte imprimé] / Nasrin Etesami, Auteur ; Mohsen Nasr Esfahany, Auteur ; Roohollah Bagheri, Auteur . - 2010 . - pp.1997–2002. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp.1997–2002 Mots-clés : Chemistry;  Particle  PVC;  Polymerization;  Resin Résumé : The particle morphological properties of poly(vinyl chloride) produced by suspension polymerization in a pilot-scale reactor under different reflux rates have been investigated. It was found that the monomer conversion decreased with increasing reflux rate. It was also observed that the cold plasticizer absorption (CPA) increased with reflux rate, whereas the bulk density (BD) and K value of the resin decreased. SEM micrographs showed that PVC resin with a rougher particle surface, more separate aggregates, and smaller primary particles was prepared at higher reflux rates. The particle size distribution determined by laser size analysis showed that the standard deviation of the particle size distribution and the mean particle size did not change significantly with reflux rate. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9008259