Chemical and physical changes induced in polyvinylidene fluoride by irradiation with high energy ions
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Cited by (67)
Effect of carbon ions beam irradiation on structural and dielectric properties of Poly(vinylidene fluoride–trifluoroethylene) P(VDF-TrFE) copolymer
2023, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsCitation Excerpt :The ejected electron around this path is responsible for chemical modification of polymer structure. It is reported that the crystallinity of fluoro polymers decreases after low-energy ion implantation [9–10]. The ion irradiation of P(VDF-TrFE) is important to understand its special properties such as dielectric, piezo and pyroelectric.
Effect of electron beam irradiation on structural and thermal properties of gamma poly (vinylidene fluoride) (γ-PVDF) films
2018, Radiation Physics and ChemistryCitation Excerpt :To improve the properties, PVDF can be modified by many methods, for example, surface coating and grafting, blending modification, mechanical stretching, electrical poling, high energy irradiation and so on (Dargaville et al., 2003; Kang and Cao, 2014; Liu et al., 2011; Lovinger, 1983). Since the early 1960s, many studies have been carried out about the investigations of the irradiated PVDF by X-ray (Le Moel et al., 1986), ion (Fina et al., 1989; Guzman et al., 1985; Komaki et al., 1996; Le Moel et al., 1986, 1988, 1987; Melilli et al., 2017) or γ irradiation (Aarya et al., 2009; Batista and Faria, 2017; Rosenberg et al., 1991; Yoshida et al., 1965; Yu et al., 2017; Zhong et al., 1993). Lyons (1995) and Forsythe and Hill (2000) have reviewed the effect of irradiation on the PVDF in detail.
Pulsed UV laser-induced modifications in optical and structural characteristics of alpha-irradiated PM-355 SSNTD
2017, Applied Radiation and IsotopesCitation Excerpt :This behavior commonly occurs because of the presence of extended systems of conjugate bonds, which results in the possible formation of carbon clusters and/or defects. The absorption bands in the investigated range of wavelength are associated to the π–π* electronic transitions (Phukan et al., 2003; Cruzman et al., 1985; Calcagno et al., 1992). The excitation of π electrons requires smaller energy, and hence, transition of this type occurs at longer wavelengths.
Solar radiation-induced changes in optical characteristics of PM-355 polymeric films
2016, Radiation MeasurementsPhysico-chemical modification induced in PLGA/OMMT nanocomposite films by Li<sup>3+</sup> ion beam
2016, VacuumCitation Excerpt :The increase in optical absorption or change in absorption edge as evident from Fig. 10 possibly attributed to formation of conjugate bonds having wavelength associated to π-π* transitions and also reflects the decrease in the optical band gap after irradiation. This shift in the absorption edge may be associated to the ion-induced damage and the creation of defects which further results in structural deformation [47–49]. Color changes in the irradiated nanocomposite samples have also been observed at high fluence; possibly ascribed to trapped free radicals or charge species in the polymer matrix.
60MeV Ni ion induced modifications in nano-CdS/polystyrene composite films
2014, Radiation Physics and Chemistry