Pregled bibliografske jedinice broj: 557191
Effect of polyvinylpyrrolidone on the formation AgBr grains in gelatine media
Effect of polyvinylpyrrolidone on the formation AgBr grains in gelatine media // Croatica chemica acta, 85 (2012), 3; 269-276 doi:10.5562/cca1919 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 557191 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of polyvinylpyrrolidone on the formation AgBr grains in gelatine media
Autori
Jukić, Marijana ; Sviben, Igor ; Zorić, Zoran ; Milardović, Stjepan
Izvornik
Croatica chemica acta (0011-1643) 85
(2012), 3;
269-276
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
silver bromide; polyvinylpyrrolidone (PVP); physical ripening; nanoparticles
Sažetak
In this study, AgBr nanoparticles were prepared by controlled single jet method in the presence of gelatine and polyvinylpyrrolidone (PVP). In order to obtain better insight about the effect of PVP and its compatibility with gelatine on the formation of AgBr nanoparticles, effects of both components (gelatine, PVP) in the process of physical ripening on grain and grain size distribution were investigated. Several processing variables such as PVP/Ag weight ratio and addition time were investigated. PVP of three different molecular weights (PVP/ K 15, Mw = 1.0 · 104 g mol−1, PVP/ K 25, Mw = 2.4 · 104 g mol−1, PVP/ K 30, Mw = 4.0 · 104 g mol−1) were tested for their ability to act as capping agent. With increasing PVP molecular mass its inhibiting effect on physical ripening of grain increases and grains with narrow size distribution are obtained (95 % grains size from 0.22 to 0.44 μm).
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
058-0582261-2253 - Ekološke priprave i elektrokemijska karakterizacija biološki aktivnih spojeva (Jukić, Marijana, MZOS ) ( CroRIS)
Ustanove:
Prehrambeno-biotehnološki fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus