The intrinsic viscosity of poly(acrylic acid) and partially neutralized poly(acrylic acid) by isoionic dilution

✍ Scribed by Georges Staikos; Georges Bokias

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 350 KB
• Volume: 31
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/pi.4990310412

✦ Synopsis

Abstract

The isoionic dilution method has been used to measure the intrinsic viscosity, [η], of a poly(acrylic acid) (PAA) sample as a function of neutralization degree, i, at low ionic strength, I = 1.0 × 10. The results obtained for the counterion activity are in close agreement with Manning's theory for counterion condensation. The influence of the ionic strength, I, on [η] and on the Huggins coefficient, k', was also examined and the exponents of the scaling laws relating these two parameters with I were found.