Experiments are described in which the decrease in volume and simultaneous relaxation of
stress in crystallizing extended samples of vulcanized natural rubber were followed with time …

The existence of an equilibrium melting temperature, T0m, at 28±1°, for unstretched natural
rubber has been established, using dilatometric methods. The lower melting temperatures …

Stress‐temperature relations at constant elongation have been studied in a pure‐gum
vulcanizate of natural rubber. Such studies yield information useful for calculations involved …

A theory of oriented crystallization in elongated polymers having network structures (eg, in
vulcanized rubber) is developed through the application of statistical mechanical procedures …

The crystallization and melting of unvulcanized natural rubber in the unstretched state have
been investigated at different temperatures. Change of volume has been used as a …

The formation of crystals at room temperature by stretching rubber, vulcanized or
unvulcanized, has been the subject of considerable study. The crystallization of unstretched …

Stress‐induced crystallization in a rapidly stretched natural rubber gum vulcanizate has
been studied using thermal techniques to follow the development of crystallinity. A special …

Received 2 1st December, I 940. the author has shown that the plastic flow in raw rubber
does not, in general, increase continuously with increasing extension, but after rising to a …

Highly oriented natural rubber samples of Roberts and Mandelkern, prepared by racking
and subsequently cross-linked using 7-radiation, undergo a spontaneous shrinkage upon …

Tensile strengths of natural rubber samples quantitatively crosslinked with decamethylene
dis‐methyl azodicarboxylate have been determined. The proportion of the azo vulcanizing …