Monomer reactivity ratios of itaconic acid and acrylamide copolymers determined by using potentiometric titration method


Uyanik N., Erbil C.

EUROPEAN POLYMER JOURNAL, vol.36, no.12, pp.2651-2654, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 12
  • Publication Date: 2000
  • Doi Number: 10.1016/s0014-3057(00)00045-8
  • Journal Name: EUROPEAN POLYMER JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2651-2654
  • Istanbul Technical University Affiliated: Yes

Abstract

Itaconic acid (methylene succinic acid)-acrylamide (IA-AAm) copolymers were synthesised with solution polymerisation by using potassium persulphate. The potentiometric titration method was used to determine the copolymer compositions. The results were evaluated by various methods. The monomer reactivity ratios were found to be r(IA) = 0.99 +/- 0.04, r(AAm) = 0.58 +/- 0.02 with the Fineman-Ross, r(IA) = 1.05 +/- 0.10, r(AAm) = 0.62 +/- 0.06 with the Kelen-Tudos, and r(IA) = 1.36 +/- 0.11, r(AAm) = 0.77 +/- 0.06 with the Tidwell-Mortimer methods. As expected, IA is found to be the more reactive monomer in IA-AAm copolymers. (C) 2000 Elsevier Science Ltd. All rights reserved.