Chemically controlled pattern formation in phase-separating materials |
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| Authors: | Sharon C Glotzer Edmund A Di Marzio M Muthukumar |
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| Institution: | (1) Polymers Division, National Institute of Standards and Technology, 20899 Gaithersburg, MD, USA;(2) Polymers Science and Engineering Department, University of Massachusetts at Amherst, 01003 Amherst, MA, USA |
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| Abstract: | Summary The role of chemical reactions in the selection of patterns in phase-separating mixtures is presented. Linearized theory and
computer simulation show that the initial long-wavelength instability characteristic of spinodal decomposition is suppressed
by chemical reactions, which restrict domain growth to intermediate length scales even in the late stages of phase separation.
Our findings suggest that chemical reactions may provide a novel way to stabilize and tune the steady-state morphology of
phase-separating materials.
Paper presented at the I International Conference on Scaling Concepts and Complex Fluids, Copanello, Italy, July 4–8, 1994. |
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| Keywords: | Thermal expansion and thermomechanical effects |
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