Microwave irradiation induced modifications on the interfaces in SAN/EVA/PVC and PVAc/BPA/PVP ternary polymer blends: Positron lifetime study

Dinesh, Meghala; Ranganathaiah, Chikkakuntappa

doi:10.1016/j.nimb.2013.05.020

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…(9) achieves 1.92). The above 3 value correlates well with o-Ps lifetimes measured at mediate humidity in fine-grained K25/Kollidon PVP powder affected by wet granulation procedure (1.75-1.91 ns) [15] and pure PVP films (2.02 ns) [23].…”

Section: Free-volume Structuresupporting

confidence: 70%

Positron annihilation lifetime study of polyvinylpyrrolidone for nanoparticle-stabilizing pharmaceuticals

Shpotyuk

Bujňáková

Baláž

et al. 2016

Journal of Pharmaceutical and Biomedical Analysis

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Section: Free-volume Structuresupporting

confidence: 70%

Positron annihilation lifetime study of polyvinylpyrrolidone for nanoparticle-stabilizing pharmaceuticals

Shpotyuk

Bujňáková

Baláž

et al. 2016

Journal of Pharmaceutical and Biomedical Analysis

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Section: Introductionmentioning

confidence: 99%

“…Applications of ethylene-vinyl acetate (EVA) has been commonly evaluated in radiation physics research such as in electron beam irradiations [1][2][3][4][5], UV measurements [6], and microwave irradiation [7]. The gamma radiation is well known and has several applications in radiation dosimetry [7][8][9][10]. In this way, after choosing the dosimetric system and its range for the irradiations, it is necessary to evaluate it; the evaluation of EVA and other dosimeters can be done by the Fourier Transform Infrared (FTIR) spectrophotometry technique [11,12].…”

Section: Introductionmentioning

confidence: 99%

Ethylene-vinyl acetate detector exposed to gamma radiation and evaluated via principal component regression

Oliveira¹,

Nascimento²,

Antonio³

et al. 2022

Braz. J. Rad. Sci.

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Ethylene-vinyl acetate (EVA) is the flexible plastic material commonly used in industries. The EVA samples, in green, white and black colors were irradiated with absorbed doses of 0.01 kGy up to 10.0 kGy using a 60Co Gamma Cell-220 system, and the Fourier Transform Infrared (FTIR) spectrophotometry technique was used for evaluating the samples. This work aimed to investigate EVA samples in measurements with gamma radiation, analyzing the linearity through the Principal Component Regression (PCR) method and its sensitivity. For sensitivity and linearity, the green samples showed the best results, followed by white and black EVA samples. The PCR method inflated gradually the number of principal components, then reducing the residuals between the measured and calculated values, consequently obtaining maximum linearity of 1.000 for all EVA samples. In conclusion, the FTIR was adequate for the acquisition of absorbance spectra, the linearity via PCR and sensitivity showed good results indicating that the EVA detectors can be useful in radiation measurements.

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“…Polymer blending has been widely considered as one of the most facile methods to achieve many high performances that are not obtained through single polymer component . Currently, more attention has been paid to the development of polymer blending because of its relatively low cost compared with the synthesis of a new polymer.…”

Section: Introductionmentioning

confidence: 99%

Study of the phase morphology and toughness in poly (vinyl chloride)/acrylonitrile–styrene‐acrylic/styrene–butadiene–styrene ternary blends influenced by interfacial/surface tension

Zhang

Mao

Zhang

2019

J of Applied Polymer Sci

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The effect of interfacial interaction on the phase morphology and toughness of poly (vinyl chloride) (PVC)/acrylonitrile–styrene‐acrylic (ASA) terpolymer/styrene–butadiene–styrene (SBS) block copolymer ternary blends has been investigated. Water and diiodomethane liquids were used for static contact angle measurements to get surface tension and calculate interfacial tension. A dispersed phase morphology of ASA and SBS in the PVC matrix was predicted by the spreading coefficient theory, which was calculated through interfacial tensions between different polymer pairs. Extraction experiment and scanning electron microscopy were combined to verify this morphology. When the volume fraction of SBS was small, SBS was dispersed in the matrix as droplets and the strong PVC/styrene–acrylonitrile interfacial interaction made up for the poor interfacial adhesion between SBS and PVC. Herein, SBS showed an effective toughening effect on PVC/ASA blends. With the addition of 2.5‐ and 5‐phr SBS, the blends had the highest impact strength of 88.75 kJ/m2 at 23 °C and 9.98 kJ/m2 at 0 °C, respectively. With the further increase of the SBS content, the diameter of the SBS drops increased largely and the poor interfacial adhesion between SBS and PVC played a leading role, resulting in a sharp decrease in toughness and a sharp ductile–brittle transition. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47721.

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Microwave irradiation induced modifications on the interfaces in SAN/EVA/PVC and PVAc/BPA/PVP ternary polymer blends: Positron lifetime study

Cited by 11 publications

References 32 publications

Positron annihilation lifetime study of polyvinylpyrrolidone for nanoparticle-stabilizing pharmaceuticals

Positron annihilation lifetime study of polyvinylpyrrolidone for nanoparticle-stabilizing pharmaceuticals

Ethylene-vinyl acetate detector exposed to gamma radiation and evaluated via principal component regression

Study of the phase morphology and toughness in poly (vinyl chloride)/acrylonitrile–styrene‐acrylic/styrene–butadiene–styrene ternary blends influenced by interfacial/surface tension

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