Poly(ethylene oxide) irradiated in the solid state, melt and aqueous solution—a DSC and WAXD study

Jurkin, Tanja; Pucić, Irina

doi:10.1016/j.radphyschem.2011.12.021

Cited by 42 publications

(32 citation statements)

References 19 publications

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“…. Such crystallinity changes were observed in pure PEO irradiated in a solid state and are due to easier crystallization of shorter chains formed by chain scission of a more radiation sensitive amorphous phase of PEO. On irradiation of PEO or its nanocomposites in contact with air initially formed PEO radicals with oxygen give rise to peroxyl radicals (Fig.…”

Section: Resultsmentioning

confidence: 79%

Irradiation effects in poly(ethylene oxide)/silica nanocomposite films and gels

Jurkin

Pucić

2013

Polymer Engineering & Sci

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Poly(ethylene oxide)/silica (PEO/SiO2) nanocomposite films were modified, and nanocomposite gels were prepared by γ‐irradiation up to 100 kGy. Thermal analysis, optical microscopy, X‐ray diffraction, and Fourier transform infrared spectroscopy revealed that the outcome mostly depended on the state of the PEO matrix on irradiation and that the state of the sample had a bearing on the effect of nanosilica addition. In unirradiated films, nanosilica induced heterogenous nucleation and increased crystallization temperatures proportional to its content. On irradiation of nanocomposite films, degradation prevailed, resulting in an increased crystallinity of samples irradiated to 50 kGy and a significant deterioration of mechanical properties at higher doses. In films irradiated in air, nanosilica did not provide radiation resistance. It enhanced oxidative degradation by increasing the content of a more radiation sensitive amorphous phase and probably facilitated the crystallization of broken chains resulting in an additional crystallinity increase. In the same dose range, the irradiation of PEO/nano‐SiO2 aqueous solutions produced cross‐linked nanocomposite gels of much lower crystallinity and phase transformation temperatures and better mechanical properties. Interactions and radiation‐induced effects in nanosilica likely contributed to a further crystallinity reduction in nanocomposite gels. Pronounced changes on the addition of 20 wt% of nano‐SiO2 to both nanocomposite films and gels indicate a possible synergism of γ‐irradiation and nanoparticle addition. POLYM. ENG. SCI., 53:2318–2327, 2013. © 2013 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 79%

Irradiation effects in poly(ethylene oxide)/silica nanocomposite films and gels

Jurkin

Pucić

2013

Polymer Engineering & Sci

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“…These prominent characteristic properties of polymer electrolyte were recognized as the most suitable for fabrication of various electrochemical devices such as solid state battery, solar cell, super capacitor, optical display devices, and sensors etc., [4][5][6]. There are various polymers were used to establish the polymer electrolytes such as polypropylene oxide (PPO), polyvinyl alcohol (PVA) and PEO, among these PEO is a semi crystalline polymer with a wide range of applications [7] because of its material characteristics like easily soluble in various inorganic solvents, low glass transition (~− 85°C) and most active polar group adjoin with polymer unit.…”

Section: Introductionmentioning

confidence: 99%

The physical and chemical properties of gamma ray irradiated polymer electrolyte films

Raghu

Archana

Chapi

et al. 2015

Journal of Non-Crystalline Solids

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“…Other polymers that have been crosslinked by radiation are polyvinyl alcohol/polyethylene glycol blends (Abdel Tawab et al, 2011), polyamides (Feng et al, 2002;Ferro and de Andrade e Silva, 2004), polytetrafluoroethylene (Abdou and Mohamed, 2002;Pugmire et al, 2009), and poly(ethylene oxide) (Jurkin and Pucić, 2012).…”

Section: Introductionmentioning

confidence: 99%