Macromolecular Rapid Communications

Cover image for Vol. 35 Issue 16

Cover Picture: Macromol. Rapid Commun. 4/2004

25_04/2004Cover: The sol-gel transition is a very important critical phenomenon. The gelation of a radical chain cross-linking copolymerization system has been studied by using in situ time-resolved dynamic light scattering and in situ rheology. Critical dynamical behavior was observed near the sol-gel transition, which is characterized by the presence of power-law spectra in the oscillatory shear experiment (upper left figure of the cover picture) and in the time-intensity correlation function (lower right figure of the cover picture). A experimental comparison of the critical exponents obtained from both methods was done for the first time.

Further details can be found in the Communication by S. Richter,* V. Boyko, and K. Schröter on page 542.

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