title: Porous Membranes Built Up from Hydrophilic Poly(ionic liquid)s.
abstract: Porous polymer membranes made via electrostatic complexation are fabricated from a water-soluble poly(ionic liquid) (PIL) for the first time. The porous structure is formed as a consequence of simultaneous phase separation of the PIL and ionic complexation with an acid, which occurred in a basic solution of a nonsolvent for the PIL. These membranes have a stimuli-responsive porosity, with open and closed pores in isopropanol and in water, respectively. This property is quantitatively demonstrated in filtration experiments, where water is passing much slower through the membranes than isopropanol.
authors.affiliation: Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.
authors.forename: Karoline
authors.initials: K
authors.lastname: Täuber
authors.affiliation: Federal Institute for Materials Research and Testing, Richard-Willstätter Str. 11, 12489, Berlin, Germany.
authors.forename: Annett
authors.initials: A
authors.lastname: Zimathies
authors.affiliation: Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.
authors.forename: Jiayin
authors.initials: J
authors.lastname: Yuan
mesh_terms: D019840:2-Propanol / Q000737:chemistry*; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D014867:Water / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D014867:Water; D019840:2-Propanol
keywords: crosslinking; phase separation; poly(ionic liquid); porous membranes; responsive materials