Determination of the sol-gel transition temperature and phase diagram of a gelation system by Brillouin spectroscopy

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Abstract
A new technique that allows accurate determination of the sol-gel transition temperature and phase diagram of a gelation system triton X-100-water, is reported. The technique is based on the observation that the temperature behaviour of the Brillouin width, which appears in the light scattering spectrum, changes abruptly at the sol-gel transition point.