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Autor:
K. W. Rollmann, Gerard Kraus
Publikováno v:
Rubber Chemistry and Technology. 38:493-508
Cold mastication of natural rubber in presence of oxygen leads to scission by a shear mechanism with subsequent stabilization of the free radicals by oxygen, while at high temperatures oxidative scission becomes the dominant mechanism. Studies of the
Autor:
M. S. Matheson, E. J. Hart
Publikováno v:
Rubber Chemistry and Technology. 21:639-653
The initial quantum yields of photoöxidation for purified Hevea rubber have been measured for various mercury arc lines in the wave length region 2537– 17,400 A˚. All experiments were carried out at room temperature and at an oxygen pressure of
Autor:
H. J. Osterhof, S. D. Gehman
Publikováno v:
Rubber Chemistry and Technology. 9:275-280
A Raman line spectrum has been secured for rubber and balata by using clear gels of the purified hydrocarbons. It was not found possible to eliminate the background entirely. The most intense frequency for both rubber and balata is the same, 1670 cm.