Dresden 2017 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster: Membranes, Biomaterials, Biopolymers
CPP 15.3: Poster
Monday, March 20, 2017, 18:30–21:00, P1C
Fabricating Complex Composite Porous Structures — •Yize Shao1, Susanne Sihler3, Farid Farajollahi2, Ulrich Ziener3, Othmar Marti2, and Masoud Amirkhani2 — 1Institute of Advanced Materials, Ulm University, Germany — 2Institute of Experimental Physics, Ulm University, Germay — 3Institute of Organic Chemistry III, Ulm University, Germany
The Breath Figure process is a self-assembly based method for producing honeycomb-structured porous films. In the process, evaporation of the solvent induces cooling of solution surface, which will result in water droplets condensing and arranging into ordered hexagonal structure. In Breath Figure technique,mini-emulsion can be used to help stabilize water droplets condensed on the solution surface. Mini-emulsions are stable systems containing oil, water, and surfactant. It is obtained by a high shear process (ultrasonication technique) resulting in small, homogeneous nanodroplets. In our study, we choose organic solvent such as Chloroform and Toluene as the oil phase to make the mini-emulsion, and we measure the nanodroplets size distribution with the help of dynamic light scattering (DLS). We carry out a series of experiments to explore the different parameters like concentration of polymer, relative humidity and especially the effect of surfactant in the polymer solution on forming ordered hexagonal structures by using the Breath Figure method.