NON-NEWTONIAN FLOW OF DILUTE POLYMETHACRYLIC ACID SOLUTIONS AT DIFFERENT DEGREES OF NEUTRALIZATION AND IONIC STRENGTHS

Abstract

A careful experimental study of the gradient dependence of viscosity for dilute solutions of polymethacrylic acid (M = 112,000) was performed. Measurements were made at six degrees of neutralization between 10 and 90 percent and ionic strengths between 0.0005 M and 0.005 M. The velocity gradient range covered is 2 - 71,000/sec. Isoionic dilution was employed to permit linear extrapolation to zero concentration. As expected the gradient dependence is most pronounced when the polymer is highly charged and the ionic strength is low. The experimental results are mainly viewed in the light of theories concerning the rigidity of the macromolecular coil.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0630665

Entities

People

  • Ragnar Stromberg

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  • Uppsala University

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  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemical Synthesis
  • Chemistry
  • Dilution
  • Electrolytes
  • Governments
  • Macromolecules
  • Materials
  • Materials Laboratories
  • Measurement
  • Molecular Weight
  • Molecules
  • Numbers
  • Polyelectrolytes
  • Polymers
  • Viscometers

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