Naslov
Thermal and UV-Degradation of Modified Impact-Resistant Polystyrene

Autori
Jelenčić, Jasenka ; Mlinac-Mišak, Marica ; Parać, Ivan ; Bravar, Mladen ; Sišul, Nikica

Izvornik
Polimeri (0351-1871) 14 (1993); 3-6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
antioxidant; degradation; polystyrene; impact-resistant; thermal ageing; UV ageing

Sažetak
A commercial blended impact-resistant polystyrene, PS-HI, wasinvestigated. It was modified withmethacrylate/butadiene/styrene, MBS, in the amounts of 5, 10, 15, 20 and 25 wt.% and stabilised with the antioxidant Irganox 245.Films of 300 um tickness were thermally treated at 100 C for 7, 14, 21, 28 and 35 days. Colour changes of dumbbells were measuredon a Data Color 3890 apparatus, showing a change from the whiteto the yellow area besause of the formation of double bonds.Measurements of carbonyl and hydroxyl groups, as well aspolybutadiene unsaturation absorbance were made by IRspectrophotometer.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA