Block Copolymer Membranes from Polystyrene-b-poly(solketal methacrylate) (PS-b-PSMA) and Amphiphilic Polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA)
by
Sarah Saleem 1, Sofia Rangou 1, Clarissa Abetz 1, Brigitte Lademann 1, Volkan Filiz 1 and Volker Abetz 1,2,*
Sarah Saleem 1, Sofia Rangou 1, Clarissa Abetz 1, Brigitte Lademann 1, Volkan Filiz 1 and Volker Abetz 1,2,*
1
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
2
University of Hamburg, Institute of Physical Chemistry, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Felix H. Schacher
Polymers 2017, 9(6), 216; https://doi.org/10.3390/polym9060216
Received: 1 May 2017 / Revised: 1 June 2017 / Accepted: 2 June 2017 / Published: 10 June 2017
(This article belongs to the Special Issue Polymers and Block Copolymers at Interfaces and Surfaces)
In this paper; we compare double hydrophobic polystyrene-b-poly(solketal methacrylate) (PS-b-PSMA) and amphiphilic polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA) diblock copolymer membranes which are prepared by combining the block copolymer self-assembly in solution with a non-solvent induced phase separation (SNIPS). Diblock copolymers (i.e., PS-b-PSMA) were synthesized by sequential living anionic polymerization, whereas polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA) were obtained by acid hydrolysis of the acetonide groups of the polysolketal methacrylate (PSMA) blocks into dihydroxyl groups (PGMA). Membrane structures and bulk morphologies were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM); respectively. The resulting PS-b-PGMA diblock copolymers produce an ordered hexagonal cylindrical pore structure during the SNIPS process, while membranes fabricated from the double hydrophobic (PS-b-PSMA) do not under similar experimental conditions. Membrane performance was evaluated by water flux and contact angle measurements.
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Keywords:
anionic polymerization; isoporous membrane; amphiphilic block copolymer; self-assembly; non-solvent induced phase separation
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MDPI and ACS Style
Saleem, S.; Rangou, S.; Abetz, C.; Lademann, B.; Filiz, V.; Abetz, V. Block Copolymer Membranes from Polystyrene-b-poly(solketal methacrylate) (PS-b-PSMA) and Amphiphilic Polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA). Polymers 2017, 9, 216.
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