Tuning surface wrinkles of Janus spheres in supercritical carbon dioxide

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• 作者：Ana Catarina Trindade^a ; ^{acrt@fct.unl.pt} ; Rita Craveiro^b ; Ana P.C. Almeida^a ; Joã ; o P. Canejo^a ; Alexandre Paiva^b ; Susana Barreiros^b ; M. Helena Godinho^a
• 关键词：scCO2 ; Janus particles ; Sol-gel extraction ; Wrinkling instabilities
• 刊名：The Journal of Supercritical Fluids
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：120
• 期：part_P1
• 页码：125-131
• 全文大小：1159 K
• 卷排序：120

文摘

Tuneable equilibrium structures in elastomeric Janus spheres are detailed. Micro- and nano-periodic patterns can be developed on the sphereś top hemisphere. Treatment with scCO2 revealed to two new states switchable reversibly between them. Different patterns are related and it is explained how they can be manipulated.