Synthesis, characterization and thermokinetic analysis of the novel sugar based styrene co-polymer
Makaleler > Tam Makale · 2020
Yazarlar: Fatma TELLİ
POLIMEROS-CIENCIA E TECNOLOGIA, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2020, cilt 30, ss 1-8
Özet
<p>A new ?-chloralose (1,2-O-(R)-trichloroethylidene-?-D-glucofuranose)-based copolymer of styrene (PSVTEG) (2) was</p><p>synthesized from vinyl (hydroxyl) furan monomer (1) and styrene by a conventional free radical polymerization reaction.</p><p>The thermal decomposition kinetics of polymer were investigated by means of thermogravimetric analysis in dynamic</p><p>nitrogen atmosphere at different heating rates. The apparent activation energy for the main stage thermal decomposition</p><p>of the copolymer PSVTEG (2) was calculated using the Flynn-Wall-Ozawa and found to be 159.0±3 kj/mol. In addition,</p><p>the activation energy value was calculated according to Coats-Redfern method and found to be compatible with the</p><p>obtained result. The thermogram of the glycopolymer (PSVTEG) (2) has two decomposition stages and the calculated</p><p>activation energy indicated that the main degradation stage is a nonspontaneous process (integral form 1/(1-?)2 for F3).</p>