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Synthesis and solution properties of hydrophobically associating ionic polymers made from diallylammonium salts/sulfur dioxide cyclocopolymerization

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
45
Issue
11
Identifiers
DOI: 10.1016/j.polymer.2004.03.057
Keywords
  • Hydrophobic Association
  • Associating Ionic Polymers
  • Diallylammonium Monomers

Abstract

Abstract Sulfur dioxide, N, N-diallyl- N-carboethoxymethylammonium chloride and the hydrophobic monomers N, N-diallyl- N-dodecylammonium chloride or N, N-diallyl- N-octadecylammonium chloride were cyclocopolymerized in dimethyl sulfoxide using azobisisobutyronitrile (AIBN) as the initiator to afford water-soluble cationic polyelectrolyte (CPE) having five-membered cyclic structure on the polymeric backbone. The CPE on acidic (HCl) hydrolysis of the pendent ester groups gave the corresponding cationic acid salt (CAS) which was converted to the anionic polyelectrolyte (APE) by treatment with sodium hydroxide. The solution properties of the CPE and APE containing varying amount of the hydrophobic monomers in the range 0–10 mol% were investigated by viscometric techniques. The polymers showed that concentration (C ∗ HA) of less than 1 wt% was required for the manifestation of hydrophobic association, and displayed significant hydrophobic association in salt (NaCl)-free as well as salt-added solutions.

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