Formation of Integral Asymmetric Membranes of AB Diblock and ABC Triblock Copolymers by Phase Inversion

Jung, Adina; Filiz, Volkan; Rangou, Sofia; Buhr, Kristian; Merten, Petra; Hahn, Janina; Clodt, Juliana Isabel; Abetz, Clarissa; Abetz, Volker

doi:10.1002/marc.201200770

Cited by 73 publications

(71 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The addition of a short third block was also reported to support the structure formation and to enable a significant increase of the process window . A short poly(ethylene oxide) block (PEO) enhanced the formation of an integral asymmetric polystyrene‐ block ‐poly(2‐vinylpyridine)‐ block ‐poly(ethylene oxide) triblock terpolymer membrane compared to the membrane obtained from the PS‐ b ‐P2VP precursor diblock copolymer.…”

Section: Discussionmentioning

confidence: 99%

Isoporous Block Copolymer Membranes

Abetz¹

2014

Macromol. Rapid Commun.

Self Cite

207

241

View full text Add to dashboard Cite

The developments in membranes based on tailored block copolymers are reported with an emphasis on isoporous membranes. These membranes can be prepared in different geometries, namely flat sheets and hollow fibers. They display narrow pore size distributions due to their formation by self-assembly. The preparation of these membranes and possibilities to further functionalize such membranes will be discussed. Different ways to control the pore size will be addressed, and the potential of block copolymer blends to fabricate membranes with tailored pore sizes will be shown.

show abstract

Section: Discussionmentioning

confidence: 99%

Isoporous Block Copolymer Membranes

Abetz¹

2014

Macromol. Rapid Commun.

Self Cite

207

241

View full text Add to dashboard Cite

show abstract

“…Additionally, post-modification of this type of membrane was done and led to superior properties, such as double stimuli-responsivity [15]. This concept was further extended to not only diblock copolymers, but also triblock terpolymers for the fabrication of integral asymmetric membrane via self-assembly SNIPS [16,17]. Blending of block copolymers was shown to be a facile way to tune the pore size of isoporous membranes [18].…”

Section: Introductionmentioning

confidence: 99%

Block Copolymer Membranes from Polystyrene-b-poly(solketal methacrylate) (PS-b-PSMA) and Amphiphilic Polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA)

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract: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.

show abstract

“…Asymmetric polymer membranes are composed of a dense top layer that selectively separates molecules and a porous bottom layer that offers mechanical strength . Asymmetric polymer membranes allow for the separation of small molecules based on chemical affinity for various applications such as pharmaceutical purification, kidney dialysis, and water desalination .…”

Section: Introductionmentioning

confidence: 99%

Vapor Phase Fabrication of Hydrophilic and Hydrophobic Asymmetric Polymer Membranes

Dianat

Seidel

Luna

et al. 2016

Macro Materials & Eng

View full text Add to dashboard Cite

The fabrication of asymmetric polymer membranes via vapor phase deposition is demonstrated. In this solventless process, the dense layer is deposited first and then the porous layer is subsequently deposited onto the dense layer. A variety of functional polymer membranes can be produced by varying the precursor molecules. The functionality of the dense and porous layers can be independently tailored to be either hydrophobic or hydrophilic, resulting in membranes that are fully hydrophilic, fully hydrophobic, or asymmetric in both structure and chemical functionality. The thickness of both the porous and dense layers can be separately tuned by controlling the deposition time.

show abstract

Formation of Integral Asymmetric Membranes of AB Diblock and ABC Triblock Copolymers by Phase Inversion

Cited by 73 publications

References 25 publications

Isoporous Block Copolymer Membranes

Isoporous Block Copolymer Membranes

Block Copolymer Membranes from Polystyrene-b-poly(solketal methacrylate) (PS-b-PSMA) and Amphiphilic Polystyrene-b-poly(glyceryl methacrylate) (PS-b-PGMA)

Vapor Phase Fabrication of Hydrophilic and Hydrophobic Asymmetric Polymer Membranes

Contact Info

Product

Resources

About