Fig. 6
From: Conversion among photo-oxidative products of polypropylene in solid, liquid and gaseous states

Peak area of four typical gaseous degradation products in CPP and UPP with aging time. a H2; b CO; c CH4; d C2H4
From: Conversion among photo-oxidative products of polypropylene in solid, liquid and gaseous states
Peak area of four typical gaseous degradation products in CPP and UPP with aging time. a H2; b CO; c CH4; d C2H4