0000000000009435

AUTHOR

Chengming Li

showing 3 related works from this author

New perspectives for the design of molecular actuators: thermally induced collapse of single macromolecules from cylindrical brushes to spheres.

2004

chemistry.chemical_classificationNanostructureMaterials sciencechemistryCollapse (topology)SPHERESNanotechnologyGeneral ChemistryScanning Force MicroscopyPolymerActuatorCatalysisMacromoleculeAngewandte Chemie (International ed. in English)
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Composite Thin Film by Hydrogen-Bonding Assembly of Polymer Brush and Poly(vinylpyrrolidone)

2005

Based on hydrogen-bonding layer-by-layer (LBL) assembly in aqueous solution, poly(vinylpyrrolidone) (PVPON) and a spherical polymer brush with a poly(methylsilsesquioxane) (PSQ) core and poly(acrylic acid) (PAA) hair chains were used to fabricate composite multilayer thin films. Hydrogen bonding as the driving force was confirmed by FT-IR spectrometry. A simple method (Filmetric F20) was introduced to determine the thickness and refractive index of the films. The film thickness was found to be a linear function of the number of bilayers. The average increase in thickness per bilayer is 28.3 nm. The film morphology was characterized with scanning electron microscopy and atomic force microsco…

Aqueous solutionScanning electron microscopeBilayerComposite numberAnalytical chemistrySurfaces and InterfacesCondensed Matter PhysicsPolymer brushchemistry.chemical_compoundchemistryChemical engineeringElectrochemistryGeneral Materials ScienceThin filmRefractive indexSpectroscopyAcrylic acidLangmuir
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Ein neuer Weg zu molekularen Aktuatoren: der thermisch induzierteÜbergang einzelner Makromoleküle von zylindrischen Bürsten zu kugelförmigen Objekten

2004

Materials scienceGeneral MedicineAngewandte Chemie
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