The effect of annealing on the dielectric properties of horn keratin in theβ form View Full Text


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Article Info

DATE

1979-01

AUTHORS

J. E. Algie

ABSTRACT

The dielectric properties of horn keratin which has had its crystalline portions converted from theα helical form to the randomβ form have been examined and various relaxation processes were studied.The method of transforming from the a to the randomβ form introduced internal stresses and the effect of these stresses on the relaxation processes was studied by relieving the stresses with a temperature cycling procedure which annealed the randomβkeratin.It was found that the annealing increased markedly the relaxation time of the relaxation process associated with main chains in the amorphous regions. The d. c. conductance also was reduced by annealing. The dielectric properties of the annealed randomβ keratin were so similar to those ofα keratin that it is highly probable that the dielectric properties are those of the amorphous material. More... »

PAGES

1-6

References to SciGraph publications

  • 1970-04. A method of analysis of dielectric absorption bands from experimental data in COLLOID AND POLYMER SCIENCE
  • 1973-05. Dielectric relaxation processes in vacuum dried rhinoceros horn in COLLOID AND POLYMER SCIENCE
  • 1973-08. Dielectric properties of wool and horn containing absorbed water in COLLOID AND POLYMER SCIENCE
  • 1968-03. Some dielectric properties of dry keratin in COLLOID AND POLYMER SCIENCE
  • 1969-02. The phase transition in wet α-keratin fibres above 100 °C in COLLOID AND POLYMER SCIENCE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf01539009

    DOI

    http://dx.doi.org/10.1007/bf01539009

    DIMENSIONS

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