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

Bourara, Hana; Hadjout, Slimane; Benabdelghani, Z.; Etxeberria, Agustín

doi:10.3390/polym6112752

Cited by 44 publications

(23 citation statements)

References 25 publications

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“…The DSC thermograms for blends and their pure components are presented in Figure 1 and reveal glass transition temperatures, T g , at 90 °C and 35°C for pure PAA and pure PMVK, respectively, which perfectly agree with those of the literature [41,42]. However, those of PAA/PMVK blends show only a single T g for each composition localized between those of its components which decreased with increasing the PMVK content.…”

Section: Resultssupporting

confidence: 84%

Miscibility of poly(acrylic acid)/poly(methyl vinyl ketone) blend and in vitro application as drug carrier system

Alghamdi

Alsolami

Saeed

et al. 2018

Designed Monomers and Polymers

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A series of poly(acrylic acid)/poly(methyl vinyl ketone) (PAA/PMVK) blends with different compositions were prepared by the solvent casting method. The miscibility of this pair of polymers was investigated by differential scanning calorimetry(DSC), Fourier transform infra-red (FTIR) and X-Ray diffraction (XRD) techniques. An in-vitro cytotoxicity test of the drug-carrier system via MTT (3-(4,5-demethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay revealed no significant cytotoxic effects at concentrations up to 100 µg· ml−1. The STX/PAA-50 drug carrier systems were also prepared by solvent casting of solutions containing the sulfamethoxazole (STX) used as drug model and PAA/PMVK blend in N.N-dimethylformamide then crosslinked with acidified ethylene glycol. The release dynamic of STX from the prepared hydrogels was investigated in which the diffusion through the polymer matrix, the enhancement of the water solubility of STX, the influence of the initial drug concentration, the pH of the medium, and the effect of the degree of swelling of the polymer matrix on the release dynamic was evaluated. According to the total gastrointestinal transit time estimated by Belzer, the estimate distribution of STX released in the different organs indicated that the performance is obtained with the drug – carrier-system containing equal ratios of polymer and 10 wt% of STX (STX-10/PAA-50).

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Section: Resultssupporting

confidence: 84%

Miscibility of poly(acrylic acid)/poly(methyl vinyl ketone) blend and in vitro application as drug carrier system

Alghamdi

Alsolami

Saeed

et al. 2018

Designed Monomers and Polymers

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“…In DMA, there was no change in the overall shape of the curves, nor to the constancy of Tg after adding 10% CAP. As for TGA, the improvement in thermal stability was very clear (Bourara et al 2014). …”

Section: Scanning Electron Microscopymentioning

confidence: 94%

“…The polar interactions between the blend components and the nature of their spread in the blend matrix have an active role in making the blend homogeneous and stable against phase separation. Furthermore, the formation of hydrogen bonds in the carbonyl group of PMMA helps the amorphous phases in the blend to become miscible (Jeong et al 2000;He et al 2004;Bhat and Kumar 2006;Dixit et al 2009;Bourara et al 2014). The high homogeneity polymer blend shows homopolymer behaviour.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

“…Physically mixing two or more polymers often yields immiscible or partially miscible blends (Manson 2012); however, miscibility in the polymer blend is the property we hoped to achieve in this study. Although there are a number of studies that have reported miscibility in polymer blends (Edgar et al 2001;Bhat and Jois 2014;Bourara et al 2014;Bao et al 2015;Huang et al 2015), it is an infrequent occurrence, so it is treated as a special case (Paul 2012). Some thermodynamic factors are interconnected in a complex way to the polymer-polymer interaction such as miscibility, adhesion, and interfacial energies (Park et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Cellulose acetate propionate (CAP) is an amorphous, transparent, and thermally stable polymer belonging to the cellulose ester family that has attracted attention from scientists because of its biocompatibility and properties intermediate between cellulose acetate and cellulose acetate butyrate. In CAP, a hydrogen bond with the presence of hydroxyl groups and ester carbonyl groups plays an important role in forming a homogeneous polymer blend (Edgar et al 2001;Bhat and Jois 2014;Bourara et al 2014). It was reported that the orientation birefringence behaviour of cellulose ester blends with polymers has a significant influence on the optical properties of the blend, whereas the unusual wavelength distribution of the orientation behaviour of CAP macromolecules is due to the polarisability anisotropy of ester groups.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Miscible Transparent Polymethylmethacrylate/Cellulose Acetate Propionate Blend: Optical, Morphological, and Thermomechanical Properties

Raouf¹,

Wahab²,

Ibrahim³

et al. 2016

BioResources

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To obtain a high transmittance blend within ultraviolet and visible regions, various transparent samples of ascending percentages of polymethylmethacrylate (PMMA)/cellulose acetate propionate (CAP) were prepared by melt blending using a twin screw extruder. These blends were characterised by ultraviolet-visible spectroscopy, and the curves illustrated that the blending ratio of 10% CAP in PMMA meets the required purpose. The morphological, mechanical, and thermal properties for pure PMMA and the PMMA/CAP 10% blend were investigated using X-ray diffraction, scanning electron microscopy, dynamic mechanical analysis, and thermogravimetric analysis. The results showed that the PMMA/CAP 10% blend has an amorphous structure and low stiffness than pure PMMA. The miscible PMMA/CAP 10% blend exhibited mechanical stability below the glass transition temperature (Tg), with a slight increase in Tg value relative to that of pure PMMA. The study also demonstrated that the intermolecular interaction between blend elements has an effective influence on the physical properties of the blend.

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Thermal Properties and Intermolecular Interaction of Blends of Poly(ethylene oxide) and Poly(methyl acrylate)

Halim

Chan

Sim

2016

Macromolecular Symposia

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Summary Polymer blends of poly(ethylene oxide) (PEO) and poly(methyl acrylate) (PMA) were prepared by solution casting method. Thermal stability of the binary PEO/PMA blends was examined by termogravimetric analysis (TGA). Decomposition temperatures of the binary blends were estimated from the onsets of the weight loss curves of TGA thermograms. The decomposition temperatures of the blends increase when the content of PEO elevates. Hence, PEO has a better thermal stability as compared to PMA. The activation energy of thermal decomposition of each sample was calculated from the initial stage of the decomposition. Quantities of EA increase when content of PEO increases in the blends. Differential scanning calorimeter (DSC) was used to investigate the thermal properties of binary PEO/PMA blends. An existence of a single and composition‐dependent glass transition temperature (Tg) for the blends indicates the miscibility of the PEO/PMA blends. The Tgs of PEO/PMA blends increase when PMA content increases. Furthermore, when PMA is blended with PEO, the crystallinity (X*) and melting temperature (Tm) of PEO in PEO/PMA blends are depressed. Thus, the miscibility of the blends in the molten state is in agreement with Tg results. Fourier‐transform infrared (FTIR) spectroscopy was used to study the intermolecular interaction of between PEO and PMA in the blends. The characteristic absorbance bands of ether and carbonyl groups of PEO and PMA were examined by FTIR. PEO and PMA only display weak van der Waals interactions in blends. Hence the miscibility of PEO and PMA in the blends may be more towards the entropic effect instead of the enthalpic effect.

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

Cited by 44 publications

References 25 publications

Miscibility of poly(acrylic acid)/poly(methyl vinyl ketone) blend and in vitro application as drug carrier system

Miscibility of poly(acrylic acid)/poly(methyl vinyl ketone) blend and in vitro application as drug carrier system

Miscible Transparent Polymethylmethacrylate/Cellulose Acetate Propionate Blend: Optical, Morphological, and Thermomechanical Properties

Thermal Properties and Intermolecular Interaction of Blends of Poly(ethylene oxide) and Poly(methyl acrylate)

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