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Cover Picture: Macromol. Rapid Commun. 4/2004
Author(s) -
Richter Sven,
Boyko Volodymyr,
Schröter Klaus
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200490006
Subject(s) - cover (algebra) , rheology , dynamic light scattering , copolymer , materials science , intensity (physics) , power law , chemical physics , optics , polymer chemistry , physics , nanotechnology , composite material , polymer , mathematics , nanoparticle , mechanical engineering , engineering , statistics
Cover: 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.