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Influence of the polymethacrylate chain conformation in Langmuir-Blodgett-Kuhn films on the glass-transition temperature

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons48236

Kügler,  R.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48198

Knoll,  Wolfgang
MPI for Polymer Research, Max Planck Society;

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Zitation

Kügler, R., & Knoll, W. (2002). Influence of the polymethacrylate chain conformation in Langmuir-Blodgett-Kuhn films on the glass-transition temperature. Macromolecular Chemistry and Physics, 203(7), 923-930.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-65FF-4
Zusammenfassung
Full Paper: Langmuir-Blodgett-Kuhn (LBK) multilayer assemblies of poly(ethyl methacrylate) (PEMA) were analyzed by X-ray- (XR) and neutron reflectometry (NR). The preparation of alternating stacks of perdeuterated and protonated layers allowed for the determination of the inner layer structure via NR. The depression of the glass-transition temperature T-g of these thin films was examined by surface plasmon spectroscopy (SPS) and waveguide spectroscopy (WGS). The depression of a relaxation temperature of the chains in LBK film was measured and related to the T-g depression of spincoat systems. The T-g depression appeared to be independent of the conformation of the polymer chains.