Extension of the Flory - Rehner Theory of Swelling to an Anisotropic Polymer System
نویسنده
چکیده
The Flory-Reimer t heory for isotropic swelling of rubber crosslinked in t he dry state is extended to an anisotropic system crosslinked in t he dry, oriented state . The new parameters introduced into t he equation can be readily determined from dimensional changes of the fiber in a s ui table solvent using a photomicrographic te::hnique. Unlike other method3, s uch as the cathetometric and weight methods, t his technique enable3 t he attainment of swelling equilibrium usually within 30 minutes. Good agreement is obtained bet ween the equivalents of crosslinks calculated from chemical a nalyses and from swelling measurements, respecti vely.
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