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Polymers 2014, 6(11), 2752-2763; doi:10.3390/polym6112752

Miscibility and Hydrogen Bonding in Blends of Poly(4-vinylphenol)/Poly(vinyl methyl ketone)

1
Faculty of Chemistry, University of Sciences and Technology (USTHB), BP 32, El Alia, Algiers 16111, Algeria
2
Departamento de Ciencia y Tecnologia de Polimeros, Instituto de Materiales Poliméricos (POLYMAT), Universidad del Pais Vasco UPV/EHU, P.O. Box 1072, 20080 San Sebastian, Spain
*
Author to whom correspondence should be addressed.
Received: 25 July 2014 / Revised: 30 September 2014 / Accepted: 2 October 2014 / Published: 28 October 2014
(This article belongs to the Special Issue Polymer Blends)
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Abstract

The miscibility and phase behavior of poly(4-vinylphenol) (PVPh) with poly(vinyl methyl ketone) (PVMK) was investigated by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). It was shown that all blends of PVPh/PVMK are totally miscible. A DSC study showed the apparition of a single glass transition (Tg) over their entire composition range. When the amount of PVPh exceeds 50% in blends, the obtained Tgs are found to be significantly higher than those observed for each individual component of the mixture, indicating that these blends are capable of forming interpolymer complexes. FTIR analysis revealed the existence of preferential specific interactions via hydrogen bonding between the hydroxyl and carbonyl groups, which intensified when the amount of PVPh was increased in blends. Furthermore, the quantitative FTIR study carried out for PVPh/PVMK blends was also performed for the vinylphenol (VPh) and vinyl methyl ketone (VMK) functional groups. These results were also established by scanning electron microscopy study (SEM). View Full-Text
Keywords: differential scanning calorimetry (DSC); fourier transform infrared spectroscopy (FTIR); miscibility; hydrogen bonding; polymer-blend differential scanning calorimetry (DSC); fourier transform infrared spectroscopy (FTIR); miscibility; hydrogen bonding; polymer-blend
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bourara, H.; Hadjout, S.; Benabdelghani, Z.; Etxeberria, A. Miscibility and Hydrogen Bonding in Blends of Poly(4-vinylphenol)/Poly(vinyl methyl ketone). Polymers 2014, 6, 2752-2763.

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