Dresden 2017 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster: Membranes, Biomaterials, Biopolymers
CPP 15.2: Poster
Montag, 20. März 2017, 18:30–21:00, P1C
Surfactant-induced Porous Polymer Film — •Dan Peng1, Farid Farajollahi2, Susanne Sihler3, Ulrich Ziener3, Othmar Marti2, and Masoud Amirkhani2 — 1Institute of Advanced Materials, Ulm University, Germany — 2Institute of Experimental Physics, Ulm University, Germany — 3Institute of Organic Chemistry III, Ulm University, Germany
The basic working mechanism of Breath Figure (BF) method is the condensation of water vapor on the polymer solution during the evaporation of the solvent. Holes structure left on the surface of the polymer film after complete evaporation of solvent and condensed water. BF method is an effective way to prepare ordered-arrangement porous polymer films. The aim of this study is to use a surfactant to produce honeycomb structure of polystyrene films by BF method. Samples cast from polystyrene solution without surfactant in three solvents including chloroform, cyclohexane and toluene show no honeycomb structure. After adding the surfactant into these solutions, the best honeycomb pattern films are achieved from the solution with toluene. The result shows that humidity and evaporation rate effect the structure of pores on the surface.