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  All-aqueous multi-phase systems and emulsions formed via low-concentration ultra-high-molar mass polyacrylamides

Plucinski, A., Pavlović, M., & Schmidt, B. V. K. J. (2021). All-aqueous multi-phase systems and emulsions formed via low-concentration ultra-high-molar mass polyacrylamides. Macromolecules, 54(12), 5366-5375. doi:10.1021/acs.macromol.1c00400.

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 Creators:
Plucinski, Alexander, Author
Pavlović, Marko1, Author           
Schmidt, Bernhard V. K. J., Author
Affiliations:
1Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3179204              

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Free keywords: Emulsions, Polyacrylamide, Liquids, Phase separation, Polymers
 Abstract: Aqueous multi-phase systems have attracted a broad interest in recent years, which is mainly due to their applicability in biology for purification and isolation of biomolecules and also for separation of particles as well as environment for enzymatic reactions. Here, three polyacrylamides poly(N,N-dimethylacrylamide), poly(acrylamide), and poly(4-acryloylmorpholine) with ultra-high molar mass were synthesized via photo-induced reversible addition–fragmentation chain-transfer polymerization (Mn > 700,000 g·mol–1). The polymers were combined to form aqueous multi-phase systems with low total polymer concentration as low as 1.1 to 2.1 wt %. Furthermore, the aqueous multi-phase system could be transformed into water-in-water (w/w) emulsions, stabilized by layered double hydroxide nanoparticles. Due to the low polymer content, these aqueous multi-phase systems open up new pathways, for example, in the separation of biomolecules or the compartmentalization of aqueous environments in catalysis.

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Language(s): eng - English
 Dates: 2021-06-082021
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.macromol.1c00400
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Title: Macromolecules
  Other : Macromolecules
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 54 (12) Sequence Number: - Start / End Page: 5366 - 5375 Identifier: ISSN: 0024-9297