Napredna pretraga

Pregled bibliografske jedinice broj: 557191

Effect of polyvinylpyrrolidone on the formation AgBr grains in gelatine media


Jukić, Marijana; Sviben, Igor; Zorić, Zoran; Milardović, Stjepan
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)


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


Projekt / tema
058-0582261-2253 - Ekološke priprave i elektrokemijska karakterizacija biološki aktivnih spojeva (Marijana Jukić, )

Ustanove
Prehrambeno-biotehnološki fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

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


Citati