The effective surface roughness scaling of the gelation surface pattern formation

Details The effective surface roughness scaling of the gelation surface pattern formation The effective surface roughness scaling of the gelation surface pattern formation

2011-02-16

arxiv.org/abs/1102.3422v1

Progr. Colloid Polym. Sci., 136, 63 (2009)

Nonlinear Sciences

Pattern Formation and Solitons

Scientific paper

10.1007/2882_2009_9

The surface pattern formation on a gelation surface is analyzed using an effective surface roughness. The spontaneous surface deformation on DiMethylAcrylAmide (DMAA) gelation surface is controlled by temperature, initiator concentration, and ambient oxygen. The effective surface roughness is defined using 2-dimensional photo data to characterize the surface deformation. Parameter dependence of the effective surface roughness is systematically investigated. We find that decrease of ambient oxygen, increase of initiator concentration, and high temperature tend to suppress the surface deformation in almost similar manner. That trend allows us to collapse all the data to a unified master curve. As a result, we finally obtain an empirical scaling form of the effective surface roughness. This scaling is useful to control the degree of surface patterning. However, the actual dynamics of this pattern formation is not still uncovered.

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