SYNTHESIS OF POLYACRYLAMIDE FLOCCULANTS WITH POLY(ETHYLENE GLYCOL) SEGMENTS BY REDOX POLYMERIZATION

ERCIYES A., ERIM M., HAZER B., YAGCI Y.

ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol.200, pp.163-171, 1992 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 200
  • Publication Date: 1992
  • Doi Number: 10.1002/apmc.1992.052000113
  • Journal Name: ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.163-171
  • Karadeniz Technical University Affiliated: No

Abstract

The polymerization of acrylamide (AAm) initiated by polyazoesters (PAE) possessing poly(ethylene glycol) (PEG) segments and azo functions was investigated in aqueous solution at 70-degrees-C. Polymerization of AAm initiated by PAE yields polymers with PEG segments and appropriate hydroxy functions for the subsequent redox polymerization. Polymerization of AAm induced by these polymers in conjunction with Ce(IV) provided increase in the molecular weight of the initial polymer without formation of insoluble polymer. The water-soluble polymers obtained at various stages were tested in the flocculation of suspension of tincal concentrate and showed good flocculating properties.