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Rheological monitoring of in situ poly(acrylamide) gel preparation

I. NEAMTU1, L. E. NITA1, A. P. CHIRIAC1,* , M. BERCEA1

Affiliation

  1. “Petru Poni” Institute of Macromolecular Chemistry Grigore Ghica Voda Alley No. 41 A, RO - 700487 Iasi, Romania

Abstract

The sol-gel transition for a polyacrylamide gel during in situ preparation was investigated by dynamic rheology at constant frequency of 0.1 Hz and by means of temperature, pH and conductivity variation. The gels were prepared by polymerization of acrylamide crosslinked with N, N'- methylene-bis-acrylamide using a redox initiation (potassium persulfate / ascorbic acid) system..

Keywords

Acrylamide, Hydrogel, Redox initiation, Crosslinking copolymerization, Gelation, Gel point, Rheologic experiment.

Submitted at: Oct. 14, 2005
Accepted at: Jan. 26, 2006

Citation

I. NEAMTU, L. E. NITA, A. P. CHIRIAC, M. BERCEA, Rheological monitoring of in situ poly(acrylamide) gel preparation, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 1, pp. 201-204 (2006)