Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2011-02-16
J. Polym. Eng., 30, 523 (2010)
Nonlinear Sciences
Pattern Formation and Solitons
Scientific paper
We report the controllability of a gelation surface pattern formation. Recently, we have found and studied a novel kind of pattern formation that occurs during a radical polymerization (gelation) process. The pattern formation is observed in an open top boundary of quasi two dimensional gelation. In previous studies, we have used two dimensional photo based image processing to analyze the patterns. However, the actual pattern is a three dimensional surface deformation. Thus we develop a three dimensional measurement system using a line laser displacement sensor and an automatic x-stage. Patterns measured by the system are analyzed and discussed by means of pattern controllability. In particular, we focus on the possibility of the pattern control using an external temperature field. As a result, we reveal that the global structure can be controlled, whereas the characteristic length scales (wavelength and amplitude) are not controllable.
Aoki Yasumichi
Barraza H. J.
Honjo Haruo
Katsuragi Hiroaki
Mizoue T.
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