Wang, Meng; Chu, Da; Liu, Li; Huang, Shuai; Chen, Xu-Man; Liu, Zhi-Yang; Yang, Hong published the artcile< Intelligent Surfaces Thermally Switchable between the Highly Rough and Entirely Smooth States>, Category: alcohols-buliding-blocks, the main research area is intelligent surface liquid crystal elastomer switchable topol structure.
Reversible switching from a highly rough surface to another entirely smooth surface under external stimuli is crucial for intelligent materials applied in the fields of anti-fogging, self-cleaning, oil-water separation and biotechnol. In this work, a thermal-responsive liquid crystal elastomer (LCE) surface covered with oriented micropillars is prepared via a facile two-step crosslinking method coupled with an extrusion molding program. The reversible change of topol. structures of the LCE surface along with temperature is investigated by metallog. microscope, at. force microscopy and optical contact angle measuring system. At room temperature, the LCE sample is filled with plenty of micropillars with an average length of 8.76 Μm, resulting in a super-hydrophobic surface with a water contact angle (WCA) of 135°. When the temperature is increased to above the clearing point, all the micropillars disappear, the LCE surface becomes entirely flat and presents a hydrophilic state with a WCA of 64°. The roughness-related wetting property of this microstructured LCE surface possesses good recyclability in several heating/cooling cycles. This work realizes a truly reversible transformation from a highly rough surface to an entirely smooth surface, and might promote the potential applications of this dynamic-responsive LCE surface in smart sensors and biomimetic control devices.
Chinese Journal of Polymer Science published new progress about Antifogging agents. 627-27-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H8O, Category: alcohols-buliding-blocks.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts