Journal
POLYMER INTERNATIONAL
Volume 53, Issue 9, Pages 1382-1387Publisher
WILEY
DOI: 10.1002/pi.1549
Keywords
interpolymer complexes; hydrogen bonding; poly(acrylic acid); critical phenomena; hydrophobic interactions
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The effect of inorganic salts addition on the complex formation of poly(acrylic acid) with various non-ionic polymers such as poly(vinyl pyrrolidone), poly(acrylamide), poly(ethylene oxide), pol(vinyl methyl ether), poly(vinyl alcohol), poly(N-isopropylacrylamide), poly(2-hydroxyethyl vinyl ether), hydroxypropylcellulose and hydroxyethylcellulose has been studied in aqueous solutions. It was found that, depending on the nature of the polymers and pH medium, addition of inorganic salts could increase or decrease the critical pH values of complexation. A new classification of interpolymer complexes based on critical pH values and ionic strength effects is suggested. (C) 2004 Society of Chemical Industry.
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