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The polymerization of acrylamide in the presence of poly(ethylene glycol) II

✍ Scribed by Arun V. Pantar

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
260 KB
Volume
22
Category
Article
ISSN
0014-3057

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✦ Synopsis

Polymerization of acrylamide was studied in the presence of poly(ethylene glycol)s 200 and 400 (PEG) in two diluents, viz. water and methanol, using ammonium persulphate as radical initiator. The polymers prepared in methanol, in general, were of lower intrinsic viscosity than those obtained from an aqueous medium. All the polymers occluded PEG, resulting in a substantial improvement in solubility of polyacrylamide. The extent of occlusion depends on the initial concentrations of PEG in the reaction mixture. NMR and i.r. of the polymers reveal that some molecules of PEG or segments of PEG chains are closely bound to the polyacrylamide backbone. No significant changes in thermal properties were found.

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