Naslov
Radiation crosslinking for improvement of properties of (PEO)8ZnCl2 polyelectrolyte

Autori
Radmanović, Kristijan ; Pucić, Irina ; Turković, Aleksandra

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
10. mednarodni znanstveni sestanek Vakuumska znanost in tehnika : Zbornik povzetkov / Irmančnik Belič, Lidija - Ljubljana : Zagreb : Društvo za vakuumsko tehniko Slovenije ; Hrvatsko Vakuumsko Društvo (HVD), 2003, 9-9

Skup
Mednarodni znanstveni sestanek Vakuumska znanost in tehnika (10 ; 2003)

Mjesto i datum
Brdo kod Kranja, Slovenija, 22.05.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nanocomposite polymer; (PEO)8ZnCl2; electrical properties; thermical properties; optical properties

Sažetak
Nanocomposite polymer electrolytes are coming to the focus of interests of scientists as it is expected them to be applied in construction of nanostructured solar cells and in the second generation of galvanic cells. Their electrical properties can be considerably improved by crosslinking. Thus the amorphous phase, which is more conductive than crystalline phase of polymer, can be enhanced. By initiation with ionising radiation we can avoid addition of initiators and achieve homogeneity of initiation throughout the whole sample. Primary poly(ethylene-oxide), PEO was crosslinked by y-irradiation of 60Co till chosen doses and used in preparation of (PEO)8ZnCl2 polymer electrolyte films with and without addition of nano-particles of Ti02. Electrical, thermical and optical properties of the polymer electrolytes were determined and as well as IR spectra were measured. With the increase of irradiation dose conductivity abruptly increase and the temperature of phase transition to the superionic phase is approaching the room temperature, which is optimal for the work of above-mentioned opto-electronic devices. Higher conductivity is achieved by the decrease of crystallinity as a result of the decrease of the size of spherulites. The growth of spherulites is suppressed with the crosslinking and addition of nano-particles of Ti02, which was confirmed by different methods.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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