✦ LIBER ✦

The elastic properties of elastin

✍ Scribed by C. A. J. Hoeve; P. J. Flory

Publisher: Wiley (John Wiley & Sons)
Year: 1974
Tongue: English
Weight: 599 KB
Volume: 13
Category: Article
ISSN: 0006-3525
DOI: 10.1002/bip.1974.360130404

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The thermoelastic properties of elastin immersed in water or in aqueous solutions of alcohols closely resemble those of typical polymers in the rubber elastic state. The evolution of heat much in excess of the work performed on elastin when it is stretched while immersed in water at ca. 25°C is attributable to the exothermic heat of dilution by water absorbed into the polymer during elongation. The negative sign of the temperature coefficient of swelling is confirmatory of this explanation. A network of random chains within the elastin fibers, like that in a typical rubber, is clearly indicated. The elastic properties of elastin are not explicable in terms of a two‐phase model consisting of discrete globules of compact elastin molecules fused one to another by cross‐linkages, with diluent (water) filling the interstices.

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