Viscometric investigation of compatibilization of the poly(vinyl chloride)/poly(ethylene-co-vinyl acetate) blends by terpolymer of maleic anhydride–styrene–vinyl acetate

Autor: Ersen Yılmaz, H. Bayram Zengin, Dilek İmren, Ali Boztuğ
Přispěvatelé: [Imren, Dilek] Cumhuriyet Univ, Fac Engn, Dept Chem Engn, TR-58140 Sivas, Turkey -- [Boztug, Ali -- Yilmaz, Ersen -- Zengin, H. Bayram] Cumhuriyet Univ, Fac Sci & Arts, Dept Chem, TR-58140 Sivas, Turkey
Rok vydání: 2008
Předmět:
Zdroj: Journal of Molecular Structure. 891:329-332
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2008.04.003
Popis: WOS: 000261537800050
In this study, a blend of poly(vinyl chloride) (PVC)/ethylene-co-vinyl acetate (EVA) was compatibilized by terpolymer of maleic anhydride-styrene-vinyl acetate (MAStVA) used as a compatibilizer. It was prepared the blends of 50/50 PVC/EVA containing 2-10% of the terpolymer. The compatibility experiences of these blends were investigated by using viscometric method in the range of concentrations (0.5-2.0 g dL(-1)) where tetrahydrofuran (THF) is the solvent. The interaction parameter (Delta b) was used to Study the miscibility and compatibility of polymer blend in solution, obtained from the modified Krigbaum and Wall theory. Turbidity and FTIR measurements were also used to investigate the miscibility of this pair of polymers. The values of the relative viscosities of the each polymer solution and their blends were measured by a Cannon-Fenske type viscometer. In consequence of the study, it was observed that a considerable improvement was achieved in the miscibility of PVC/EVA blends by adding among 5 and 10 wt% of compatibilizer. (C) 2008 Elsevier B.V. All rights reserved.
Databáze: OpenAIRE
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