Solvent, temperature and concentration effects on the adsorption of poly(n-butyl methacrylate) on alumina from solutions


Pekel N., Guven O.

TURKISH JOURNAL OF CHEMISTRY, cilt.26, ss.221-227, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 26 Konu: 2
  • Basım Tarihi: 2002
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Sayfa Sayıları: ss.221-227

Özet

Adsorption of poly(n-butyl methacrylate) (PnBMA) on alumina from solution was studied by UV and FT-IR Photoacoustic Spectroscopy techniques. The effects of the solvent, temperature, concentration, and molecular weight of the polymer on adsorption were investigated. Three solvents, cyclohexane, carbon tetrachloride and benzene, were employed. The adsorption was dependent on molecular weight, and much more polymer was adsorbed in cyclohexane than in other solvents on the alumina surface. A decrease in adsorption was observed with increasing temperature. The results are in conformity with Langinuir's isotherm. The differences observed in Langmuir parameters were explained by polymer-polymer, polymer-solvent, polymer-adsorbent, and solvent-adsorbent interactions.