NEW ASPECTS REGARDING THE SYNTHESIS OF POLYVINYL-ALCOHOL .2. POLYVINYL ACETATE ALCOHOLYSIS IN MEDIA POSSESSING ENHANCED HYDROPHOBIC CHARACTER

Authors
POCSAN I HUBCA G TEODORESCU M DIMONIE M
Citation
I. Pocsan et al., NEW ASPECTS REGARDING THE SYNTHESIS OF POLYVINYL-ALCOHOL .2. POLYVINYL ACETATE ALCOHOLYSIS IN MEDIA POSSESSING ENHANCED HYDROPHOBIC CHARACTER, Revue Roumaine de Chimie, 42(3), 1997, pp. 233-238
Citations number
2
Categorie Soggetti
Chemistry
Journal title
Revue Roumaine de Chimie → ACNP
ISSN journal
00353930
Volume
42
Issue
3
Year of publication
1997
Pages
233 - 238
Database
ISI
SICI code
0035-3930(1997)42:3<233:NARTSO>2.0.ZU;2-Y
Abstract
Base-catalyzed alcoholysis of polyvinyl acetate in methanol/melhyl ace tate and methanol/n-butanol solvent mixtures was studied. The alcoholy sis reaction was carried out in a Brabender-type micro-mixer. Quantita tive data regarding the evolution of the polyvinyl alcohol synthesis p rocess were obtained. The addition of 30 weight-% n-butanol determines the decrease of the length of the homogeneous step of the reaction an d the disappearance of the polyvinyl alcohol particle aggregation. The phenomenon was ascribed to the enhancement of the hydrophobic charact er of the reaction medium.