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

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-so...

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Bibliographic Details
Published in:Polymer (Guilford) 2004-05, Vol.45 (11), p.3651-3661
Main Authors: Umar, Yunusa, Al-Muallem, Hasan A., Abu-Sharkh, B.F., Ali, Sk.Asrof
Format: Article
Language:English
Subjects:
Applied sciences
Associating ionic polymers
Diallylammonium monomers
Exact sciences and technology
Hydrophobic association
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary: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.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2004.03.057