Kinematic Viscosities of polyethylene glycol plus dextran plus water solutions


Gunduz U., Dogan Ö. M.

CHEMICAL ENGINEERING COMMUNICATIONS, cilt.192, ss.1586-1597, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 192
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1080/009864490896188
  • Dergi Adı: CHEMICAL ENGINEERING COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1586-1597
  • Gazi Üniversitesi Adresli: Evet

Özet

The kinematic viscosities of aqueous polyethylene glycol and dextran and polyethylene glycol + dextran + water were measured at temperatures of 30, 50, and 70 degrees C Polyethylene glycol with relative molecular masses of 200 and 1000 and dextran samples with nominal molecular masses of 37 500 and 2 000 000 were used A one-parameter Grunberg-like equation proposed earlier by one of the present authors was used for estimating the values of viscosity of polyethylene glycol + dextran + water. A disposable parameter for the temperature range was calculated as 0.96 and 1.05 for PEG200+dextran 37 500+water and PEG 1000+dextran 37 500+water, respectively, and as 2.74 and 2.80 for PEG 200+dextran 2 000 000 + water, and PEG 1000 + dextran 2 000 000 + water, respectively. In view of our results, the proposed model works well for systems containing polyethylene glycol and dextran with different molecular masses.