Logo JG-Universität MainzProf. Dr. Axel Müller


485. Betthausen, E.; Dulle, M.; Hanske, C.; Müller, M.; Fery, A.; Förster, S.; Schacher, F.H.; Müller, A.H.E.: Nanoporous Sheets and Cylinders via Bulk Templating of Triblock Terpolymer/Homopolymer Blends, Macromolecules 47, 6289–6301 (2014) -- DOI: 10.1021/ma501003z

The selective crosslinking of individual domains in block copolymer bulk morphologies rep-resents an elegant strategy to generate nanostructured materials of tunable size and geometry. We demonstrate the preparation of highly periodic nanoporous sheets and core-shell cylinders from a stimuli-responsive triblock terpolymer, polybutadiene-block-poly(tert-butyl methacry-late)-block-poly(2-(dimethylamino)ethyl methacrylate) (PB-b-PtBMA-b-PDMAEMA). By blending the terpolymer with different types and amounts of homopolymers, a variety of bulk morphologies is accessible, including rarely found examples such as tetragonally perforated lamellae and double gyroid networks. Selective crosslinking of the PB domains of the gener-ated morphologies followed by sonication-assisted dispersion allows the preparation of well-defined nanostructures in non-selective solvents. Due to the PDMAEMA corona, the crosslinked structures are soluble in aqueous media. The high regularity of the pore diameter in combination with a tunable pore permeability by two external stimuli, pH and temperature, renders such perforated lamellae particularly appealing for potential applications as membrane materials.

Zu dieser Publikation gibt es weitere Dateien zum Download


powered by php + PostgreSQL - Letzte Änderung 16.11.2014- Impressum