Author
S.E. Svanson
Bio: S.E. Svanson is an academic researcher from University of Gothenburg. The author has contributed to research in topics: Vinyl polymer & Copolymer. The author has an hindex of 1, co-authored 1 publications receiving 19 citations.
Papers
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TL;DR: In this paper, two glass transition temperatures are observed in DSC-thermograms from blends of suspension-polymerized vinyl chloride and ethylenevinyl acetate copolymer (Levapren 450M, 45 wt % VAc).
19 citations
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TL;DR: Surface free energy results were found to be greatly dependent on the calculation method and on the number of standard liquids used for contact angle measurements, and it seems that there is not yet a definite solution for the calculation of solid surface free energy.
90 citations
86 citations
01 Jan 1978
TL;DR: In this paper, the authors provide a detailed account of solid-state transition behavior of poly (2, 6-dimethylphenylene oxide)-polystyrene blends and PPO-poly-chloro-structure blends.
Abstract: Publisher Summary This chapter focusses on the solid-state transition behavior of blends. It discusses the criteria for miscibility and briefly reviews the widely used methods of glass transition temperature (Tg) measurement in polymer blends with respect to their advantages and limitations in the study of polymer compatibility. The methods by which Tg of polymers may be determined are differential thermal analysis (DTA), thermal optical analysis (TOA), probe penetration thermo-mechanical analysis (TMS), differential scanning calorimetry (DSC), dynamic mechanical and dielectric measurements, and dilatometry. DSC has been widely used in the study of blend compatibility and in the determination of crystallinity in crystalline-amorphous polymer blends. DSC thermograms are plots of heat capacity (Cp) versus temperature. Apart from rapidity of measurement, the principal advantages of DSC in the study of polymer blends are that only small (typically 5–30 mg) samples are required and the available rapid temperature scan permits the study of heat sensitive polymers such as PVC without the addition of stabilizers. Dynamic mechanical measurements are widely used in the study of polymer compatibility. With this technique, a dynamic modulus can be measured as a function of temperature over a range of frequencies. From traditional torsion pendulum measurements, the dynamic shear loss modulus (G") and the dynamic shear storage modulus (G') can be obtained as a function of temperature at a nominal frequency in the vicinity of 1 Hz. The chapter provides a detailed account of solid-state transition behavior of poly (2, 6-dimethylphenylene oxide)-polystyrene blends and PPO- poly-chloro-styrene blends.
51 citations
TL;DR: In this paper, Fourier transform infra-red spectra of polyvinyl chloride (PVC) and chlorinated polyethylene (CPE) were used to investigate the properties of compatible EVA-PVC and CPE-CPE blends.
48 citations
TL;DR: In this paper, morphological and mechanical properties of polypropylene [PP]/poly(ethylene vinyl acetate) [EVA] blends have been studied using thin films and infrared results using thin film first indicated a transition toward compatibility between both components at concentrations above 40% EVA.
Abstract: Morphological and mechanical properties of polypropylene [PP]/poly(ethylene vinyl acetate) [EVA] blends have been studied Infrared results using thin films first indicated a transition toward compatibility between both components at concentrations above 40% EVA The transition was verified with different experimental techniques and it was associated to morphological changes and mechanical properties The PP/EVA blends were mechanically evaluated in terms of impact and tensile strength to determine the influence of blending on the performance properties of these materials Agreement was found between the transition and the enhancement of both elongation at break and impact strength
34 citations