Journal Article

DESY-2014-02776

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png pH controlled condensation of polysiloxane networks at the water-air interface

Wieland, D. C. F. (Corresponding Author) ; Degen, P.Extern* ; Paulus, M.Extern* ; Schroer, M.DESY* ; Rehage, H. ; Tolan, M.Extern*

2014
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.colsurfa.2014.03.099

Abstract: Structural and mechanical properties of molecularly thick polysiloxane membranes were studied on different liquid subphases to investigate the impact of the subphase's pH value on the cross-linking process. The lateral structure of these films was studied in-situ by grazing incidence diffraction while torsions pendulum experiments reveal the response of the system to mechanical stress. The results show a hindered cross-linking on acidic subphases. At alkaline and neutral pH conditions the cross-linking process was not effected. The data revealed that the degree of polymerization can be tuned by regulating the subphase's pH value, which opens the opportunity to build complex polysiloxane membranes in a controlled manner.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. Coherent X-ray Scattering (FS-CXS)

Research Program(s):

1. DORIS Beamline BW1 (POF2-54G13) (POF2-54G13)

Experiment(s):

1. DORIS Beamline BW1 (DORIS III)

Appears in the scientific report 2014

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Database coverage:
; Current Contents - Social and Behavioral Sciences ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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