Journal Article

PreJuSER-17151

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Chain conformation of Poly(alkylene oxide)s studied by Small-Angle Neutron Scattering

Gerstl, C.FZJ* ; Schneider, G. J.FZJ* ; Pyckhout-Hintzen, W.FZJ* ; Allgaier, J.FZJ* ; Willbold, S. ; Hofmann, D. ; Disko, U. ; Frielinghaus, H.FZJ* ; Richter, D.FZJ*

2011
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/ma201288a

Abstract: Using small-angle neutron scattering, the unperturbed chain dimensions of a series of poly(alkylene oxide)s (PAO's) were studied as a function of side-chain length. The PAO's were obtained using anionic ring-opening polymerization methods. The deuterated monomers were synthesized from commercially available precomponents. A systematic decrease of the chain dimensions with increasing length of the side chains was found. We also compare the PAO's with the chemically very similar poly(olefin)s with respect to the characteristic ratio C-infinity, the chain dimensions, and the packing length as a function of the molecular weight per backbone bond. In doing so, we found significant differences between the static properties of the two systems.

Keyword(s): Basic research (1st) ; Others (1st) ; Soft Condensed Matter (2nd) ; J

Note: We thank Lewis Fetters for his valuable comments. C.G. acknowledges financial support by the International Helmholtz Research School of Biophysics and Soft Matter (IHRS BioSoft).

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Contributing Institute(s):

1. Neutronenstreuung (ICS-1)
2. Neutronenstreuung (JCNS-1)
3. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
4. Zentralabteilung für Chemische Analysen (ZCH)
5. Agrosphäre (IBG-3)

Research Program(s):

1. BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung (P45)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Experiment(s):

1. KWS-1: Small angle scattering diffractometer (NL3b)

Appears in the scientific report 2011

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