Issue 11, 2014
From the journal:

RSC Advances

A facile method for the fabrication of covalently linked PAH/PSS layer-by-layer films†

Qi An,*a   Yong Zhou,b   Yajun Zhang,b   Yihe Zhanga  and  Feng Shi*b  

* Corresponding authors

a School of Materials Sciences and Technology, China University of Geosciences (Beijing), Beijing, China
E-mail: an@cugb.edu.cn

b Key Laboratory of Carbon Fiber and Functional Polymer, Ministry of Education & State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
E-mail: shi@mail.buct.edu.cn

Abstract

We report a facile method for the fabrication of robust polyelectrolyte multilayers including strong polyanions. Covalently cross-linked PAH/PSS [PAH: poly(allylamine hydrochloride); PSS: poly(sodium-p-styrene sulfonate)] multilayered films are fabricated using a traditional layer-by-layer technique, followed by post-infiltration of a bifunctional photoactive molecule 4,4′-diazido-2,2′-stilbenedisulfonic acid disodium (DAS) and subsequent photochemical cross-linking. The stability of the cross-linked multilayers was enhanced significantly. Over 90% of the cross-linked multilayers were preserved in a basic solution or good solvent of the polyelectrolyte, forming a clear comparison with the un-crosslinked multilayers, which almost completely decomposed under the circumstances mentioned above.

Graphical abstract: A facile method for the fabrication of covalently linked PAH/PSS layer-by-layer films

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Article information

DOI
https://doi.org/10.1039/C3RA45646C
Article type
Paper
Submitted
08 Oct 2013
Accepted
18 Nov 2013
First published
19 Nov 2013

RSC Adv., 2014,4, 5683-5688

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A facile method for the fabrication of covalently linked PAH/PSS layer-by-layer films

Q. An, Y. Zhou, Y. Zhang, Y. Zhang and F. Shi, RSC Adv., 2014, 4, 5683 DOI: 10.1039/C3RA45646C

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