Please use this identifier to cite or link to this item:
doi:10.22028/D291-41475
Title: | Polyacrylonitrile-containing amphiphilic block copolymers: self-assembly and porous membrane formation |
Author(s): | Gemmer, Lea Niebuur, Bart-Jan Dietz, Christian Rauber, Daniel Plank, Martina Frieß, Florian V. Presser, Volker Stark, Robert W. Kraus, Tobias Gallei, Markus |
Language: | English |
Title: | Polymer Chemistry |
Volume: | 14 |
Issue: | 42 |
Publisher/Platform: | Royal Society of Chemistry |
Year of Publication: | 2023 |
DDC notations: | 500 Science |
Publikation type: | Journal Article |
Abstract: | The development of hierarchically porous block copolymer (BCP) membranes via the application of the self-assembly and non-solvent induced phase separation (SNIPS) process is one important achievement in BCP science in the last decades. In this work, we present the synthesis of polyacrylonitrile-containing amphiphilic BCPs and their unique microphase separation capability, as well as their applicability for the SNIPS process leading to isoporous integral asymmetric membranes. Poly(styrene-co-acrylonitrile)-bpoly(2-hydroxyethyl methacrylate)s (PSAN-b-PHEMA) are synthesized via a two-step atom transfer radical polymerization (ATRP) procedure rendering PSAN copolymers and BCPs with overall molar masses of up to 82 kDa while maintaining low dispersity index values in the range of Đ = 1.13–1.25. The polymers are characterized using size-exclusion chromatography (SEC) and NMR spectroscopy. Self-assembly capabilities in the bulk state are examined using transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) measurements. The fabrication of isoporous integral asymmetric membranes is investigated, and membranes are examined by scanning electron microscopy (SEM). The introduction of acrylonitrile moieties within the membrane matrix could improve the membranes’ mechanical properties, which was confirmed by nanomechanical analysis using atomic force microscopy (AFM). |
DOI of the first publication: | 10.1039/D3PY00836C |
URL of the first publication: | https://doi.org/10.1039/D3PY00836C |
Link to this record: | urn:nbn:de:bsz:291--ds-414752 hdl:20.500.11880/37158 http://dx.doi.org/10.22028/D291-41475 |
ISSN: | 1759-9962 1759-9954 |
Date of registration: | 22-Jan-2024 |
Description of the related object: | Electronic supplementary information |
Related object: | https://www.rsc.org/suppdata/d3/py/d3py00836c/d3py00836c1.pdf |
Faculty: | NT - Naturwissenschaftlich- Technische Fakultät |
Department: | NT - Chemie NT - Materialwissenschaft und Werkstofftechnik |
Professorship: | NT - Prof. Dr. Markus Gallei NT - Prof. Dr. Christopher Kay NT - Prof. Dr. Tobias Kraus NT - Prof. Dr. Volker Presser |
Collections: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Files for this record:
File | Description | Size | Format | |
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d3py00836c.pdf | 4,03 MB | Adobe PDF | View/Open |
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