Naslov
Isothermal degradation of poly(3-hydroxybutyrate)/organically modified montmorillonite nanocomposites

Autori
Erceg, Matko ; Kovačić, Tonka ; Perinović, Sanja

Izvornik
Polymer composites (0272-8397) 31 (2010), 2; 272-278

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

Ključne riječi
Isothermal thermogravimetry (TG); Kinetic analysis; Nanocomposites; Organically modified montmorillonite; Poly(3-hydroxybutyrate)

Sažetak
Polymer nanocomposites consisted of biodegradable poly(3-hydroxybutyrate) (PHB) and organically modified montmorillonite Cloisite25A (OMMT), prepared by the solution casting method, were isothermally degraded for 120 min at 230, 235, 240 and 245C in the nitrogen atmosphere. The addition of OMMT increases the thermal stability of PHB and the most pronounced effect has the addition of 7 wt. % of OMMT. Kinetic analysis was performed using reduced time plots and model-free isoconversional methods. The empirical kinetic triplets (E, A, and g(alpha)) for the isothermal degradation of pure PHB and PHB/OMMT nanocomposites were determined.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA