Synthesis, characterization and thermokinetic analysis of the novel sugar based styrene co-polymer


Telli F.

Polimeros-Ciencia E Tecnologia, cilt.30, ss.1-8, 2020 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 30 Konu: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1590/0104-1428.02620
  • Dergi Adı: Polimeros-Ciencia E Tecnologia
  • Sayfa Sayıları: ss.1-8

Özet

A new α-chloralose (1,2-O-(R)-trichloroethylidene-α-D-glucofuranose)-based copolymer of styrene (PSVTEG) (2) was

synthesized from vinyl (hydroxyl) furan monomer (1) and styrene by a conventional free radical polymerization reaction.

The thermal decomposition kinetics of polymer were investigated by means of thermogravimetric analysis in dynamic

nitrogen atmosphere at different heating rates. The apparent activation energy for the main stage thermal decomposition

of the copolymer PSVTEG (2) was calculated using the Flynn-Wall-Ozawa and found to be 159.0±3 kj/mol. In addition,

the activation energy value was calculated according to Coats-Redfern method and found to be compatible with the

obtained result. The thermogram of the glycopolymer (PSVTEG) (2) has two decomposition stages and the calculated

activation energy indicated that the main degradation stage is a nonspontaneous process (integral form 1/(1−α)2 for F3).