Abstract
We present first observations of wetting phenomena in depletion interaction driven, phase separated colloidal dispersions (coated silica-cyclohexane-polydimethylsiloxane). The contact angle of the colloidal liquid-gas interface at a solid substrate (coated glass) was determined for a series of compositions. Upon approach to the critical point, a transition occurs from partial to complete wetting.
Original language | English |
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Pages (from-to) | 196101/1-196101/4 |
Journal | Physical Review Letters |
Volume | 90 |
DOIs | |
Publication status | Published - 2003 |
Keywords
- polymer mixtures
- phase-behavior
- silica dispersions
- light-scattering