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  How Can One Controllably Use of Natural ΔpH in Polyelectrolyte Multilayers?

Skorb, E. V., Möhwald, H., & Andreeva, D. V. (2017). How Can One Controllably Use of Natural ΔpH in Polyelectrolyte Multilayers? Advanced Materials Interfaces, 4(1): 1600282. doi:10.1002/admi.201600282.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-2D01-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-847B-C
Genre: Journal Article

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 Creators:
Skorb, Ekaterina. V.1, Author              
Möhwald, Helmuth2, Author              
Andreeva, Daria V., Author
Affiliations:
1Katja Skorb (Indep. Res.), Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2231640              
2Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863287              

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Free keywords: Layer-by-Layer assembly, multilayers, pH sensitive actuation, polyelectrolytes, stimuli-responsive materials
 Abstract: Most natural and synthetic polyelectrolytes (PEs) possess dissociable groups, and therefore the corresponding structures depend on pH. This enables manipulation of their properties, in special permeability, elasticity and swelling, and this can be made use of in many applications. The effect of individual polymer composition on the dissociation equilibrium is discussed. Different concentrations and pH values during the PE assembly affect concentration of charged groups per molecule on the dissociation equilibrium. Ionic strength also influences the protonation/deprotonation behavior of PE, that can be changed by adding different salt concentration but also varies with the concentration of charged groups in the polymer molecules. Electrostatic interactions of the polymer molecules strongly affect the dissociation equilibrium of weak PEs and, thus, layers architecture and properties that can be regulated by natural pH changes in such processes as self-healing, corrosion and antifouling, drug storage and delivery, etc.

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 Dates: 2016-08-112017-01-09
 Publication Status: Published in print
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 Identifiers: DOI: 10.1002/admi.201600282
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Title: Advanced Materials Interfaces
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 4 (1) Sequence Number: 1600282 Start / End Page: - Identifier: ISSN: 2196-7350