Journal Article

FZJ-2015-03379

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Interfacial smoothening of polymer multilayers with molecules: a new approach in growing supramolecular layer structures

Paul, N. (Corresponding Author) ; Paul, A. ; Mattauch, S.FZJ* ; Müller-Buschbaum, P. ; Böni, P. ; Lux-Steiner, M. C.

2013
Royal Soc. of Chemistry London

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Please use a persistent id in citations: doi:10.1039/c3sm51792f

Abstract: The development of polymer-based structures is hindered due to the difficulties in realizing well-defined modulated structures without interpenetration of charged polymers. Two types of polyelectrolyte multilayer structures, with and without embedded layers of the biomolecule, glutamic acid, are compared using infrared spectroscopy and X-ray and neutron scattering techniques. Structure characterization of polyelectrolyte multilayers focuses usually on the arrangement along the surface normal. Using specular and off-specular neutron scattering we get insight into the in- and out-of-plane arrangement of the structure. A formation of well-defined, smooth layers is observed in the structure containing the biomolecule. This reduced roughness is associated with a drastic decrease in chain mobility responsible for interpenetration. In contrast, the multilayer without the biomolecule forms an island-like structure. Thus biomolecules can interrupt the propagation of island-like structures at such interfaces which can be effectively used in achieving well-defined supramolecular layer structures out of charged polymers.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Key Technologies (1st) ; Nano Science and Technology (1st) ; Soft Condensed Matter (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Neutronenstreuung (Neutronenstreuung ; JCNS-1)

Research Program(s):

1. 451 - Soft Matter Composites (POF2-451) (POF2-451)
2. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. TREFF: Neutronenreflektometer (NL5S)

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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