A Simple and Effective Method for the Preparation of Porous Membranes with Three-Dimensionally Arranged Pores


  • The support by M. Möller, B. Rieger, and K. Landfester (University of Ulm), H. Auweter and R. Iden (BASF) is greatly appreciated. We also thank Prof. P. Walther (University of Ulm) for help in high resolution SEM measurements. This work was funded by the Deutsche Forschungsgemeinschaft (SFB 569, SPP 1052).


A one-step process for the preparation of porous polymer membranes (see Figure) by spreading mixtures of particles and organic liquid onto a water surface, followed by solidification of the liquid, removal of the particles, and transfer to desired supports, is reported (see Figure). The thickness of the porous membranes can be tuned from a single layer to more than ten layers.