0000000000464961

AUTHOR

Dagmar Ulbrich

showing 2 related works from this author

Complexes of an anionic poly(p-phenylene) polyelectrolyte and dioctadecylammonium bromide at the air–water interface

1999

Abstract By spreading dioctadecyldimethylammonium bromide on a subphase containing rigid rod-like anionic poly( p -phenylene) sulfonate, a complex monolayer is formed in situ at the air–water interface. Complexation results in an increase of the area per amphiphile molecule compared to the amphiphile on pure water. The change in structural order upon complexation and subsequent compression of the monolayer can be demonstrated employing UV/Vis spectroscopy: A red-shift of the polymer absorption band upon compression and a subsequent partial reversion of this shift after monolayer collapse can be observed. The peak shift is discussed to be a result of the electronic interaction of the π -syst…

Materials scienceBioengineeringPhotochemistryPolyelectrolyteBiomaterialschemistry.chemical_compoundUltraviolet visible spectroscopychemistryMechanics of MaterialsPoly(p-phenylene)BromidePhenyleneIntramolecular forceMonolayerAmphiphileOrganic chemistryMaterials Science and Engineering: C
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Makromolekulare Chemie 2001

2002

In der Grundlagenforschung der Makromolekularen Chemie liegen die Schwerpunkte auf gezielten Verfahren zur Polymerisation bekannter Monomerer und auf neuen Polymerarchitekturen. Anwendungsaspekte rucken dabei immer mehr in den Vordergrund – bis zur direkten Entwicklung von Funktionsmaterialien. Die Industrie erweitert mit neuen Katalysatoren, Blends, Additiven und Copolymerstrukturen ihr Repertoire.

General Chemical EngineeringGeneral ChemistryNachrichten aus der Chemie
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