Naslov
Kinetic analysis of the non-isothermal degradation of poly(vinyl chloride)/poly(ethylene oxide) blends

Autori
Jakić, Miće ; Stipanelov Vrandečić, Nataša ; Erceg, Matko

Izvornik
Journal of thermal analysis and calorimetry (1388-6150) 123 (2016), 2; 1513-1522

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

Ključne riječi
Kinetic analysis; Multivariate non-linear regression method; Poly(vinyl chloride); Poly(ethylene oxide)

Sažetak
Kinetic analysis of the non-isothermal degradation of poly(vinyl chloride)/poly(ethylene oxide) (PVC/PEO) blends was performed using isoconversional Friedman method in combination with the multivariate nonlinear regression method. The dependencies of E on α have been evaluated at whole conversion range, and it was concluded that E depends on α for all investigated samples, which indicated the complex degradation mechanism. The kinetic analysis indicated four-stage degradation mechanism, except for PVC sample which showed five-stage degradation mechanism. As the PEO content increased in the investigated samples, the probable mechanism changed from the reaction of nth order with autocatalysis (Cn) to the Avrami–Erofeev reaction type (An).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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