Application of inverse gas chromatography for polymer characterization

Abstract

The possibility of polymer characterization by inverse gas chromatography (IGC) was illustrated with the study of sorption properties of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), PGME, synthesized by suspension copolymerization, and copolymer modified with ethylene diamine, PGME-en. The data collected from IGC experiments at infinite dilution are used for the calculation of the thermodynamic parameters of adsorption, dispersive components of the surface free energies, and the acid/base constants. .

U okviru rada prikazane su mogućnosti korišćenja inverzne gasne hromatografije (IGC) za karakterizaciju polimera. Umreženi makroporozni kopolimer glicidilmetakrilata, GMA, i etilenglikoldimetakrilata, EGDMA, poli (GMA-co-EGDMA) sintetizovan je suspenzionom kopolimerizacijom, a zatim modifikovan reakcijom sa etilendiaminom. Uzorcima polaznog i modifikovanog kopolimera, poli(GMA-co-EGDMA)-en, su pri nultoj prekrivenosti određeni termodinamički parametri adsorpcije, disperzivna komponenta slobodne površinske energije i kiselo/bazna svojstva.