0000000001308420

AUTHOR

R. Zentel

showing 7 related works from this author

Electroactive Liquid Crystalline Polymers ☆

2017

As with low molecular mass liquid crystals, the polymeric liquid crystalline compounds show many possibilities for interaction with electrical fields. Charge transport via the aromatic cores allows the construction of light emitting devices, field effect transistors and photovoltaic cells. The order of the liquid crystalline phases helps to improve intramolecular charge transfer and the mobility allows easy alignment. Liquid crystalline polymers with ferroelectric phases can be used in fast switching optical devices. Their unique switching mechanism proceeds under reduced interaction with the polymer chains. The combination of liquid crystallinity with elastomer networks leads to electromec…

chemistry.chemical_classificationConductive polymerFerroelectric polymersMaterials sciencebusiness.industryPolymerElastomerFerroelectricityCondensed Matter::Soft Condensed MatterCondensed Matter::Materials ScienceCrystallinitychemistryLiquid crystalElectric fieldOptoelectronicsField-effect transistorbusiness
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Towards Plastic Electronics: Patterning Semiconducting Polymers by Nanoimprint Lithography

2002

The direct patterning of functional semiconducting polymers (see Figure) has been achieved with a nanoimprint lithography technique. The room‐temperature process described is time‐saving as repeated temperature cycling is not required. In addition, due to the direct patterning approach the need for further processing steps (plasma treatment) to pattern the underlying semiconducting material is eliminated.

chemistry.chemical_classificationMaterials sciencebusiness.industryMechanical EngineeringNanotechnologyPolymerNanoimprint lithographylaw.inventionchemistryMechanics of MaterialslawOptoelectronicsGeneral Materials SciencebusinessPlastic electronicsAdvanced Materials
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Control of mesogen configuration in colloids of liquid crystalline polymers

2010

We report on a method to chemically predetermine the surface anchoring of mesogens in liquid crystalline colloids formed by different types of dispersion polymerization, and hence to achieve control over the mesogen configuration in such colloids. The surface anchoring is controlled by the chemical linkage of the polymers forming the colloids to the surfactants stabilizing the colloids towards the dispergent. We find that the hydroxypropyl cellulose used in conventional dispersion poylmerization induces parallel mesogen surface anchoring that in turn leads to bipolar director-field configurations, while a methacrylate terminated polysiloxane stabilizer, which is used in nonpolar dispersion …

Dispersion polymerizationchemistry.chemical_classificationMaterials scienceHydroxypropyl celluloseMesogenGeneral ChemistryPolymerCondensed Matter PhysicsMethacrylatechemistry.chemical_compoundColloidchemistryChemical engineeringPolymer chemistryCopolymerDispersion (chemistry)Soft Matter
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CCDC 635327: Experimental Crystal Structure Determination

2008

Related Article: R.Davis, R.Berger, R.Zentel|2007|Adv.Mater.|19|3878|doi:10.1002/adma.200701057

Space GroupCrystallographyNN'-bis(butylcarbamoyl)heptanediamideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 844943: Experimental Crystal Structure Determination

2011

Related Article: Jin-Kyun Lee, M.C.Gwinner, R.Berger, C.Newby, R.Zentel, R.H.Friend, H.Sirringhaus, C.K.Ober|2011|J.Am.Chem.Soc.|133|9949|doi:10.1021/ja201485p

Space GroupCrystallographyCrystal Systemcatena-[bis(mu~8~-47-bis(Trifluoroboranyl)-2-(heptadecan-9-yl)-2H-benzotriazole)-tetra-potassium]Crystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 781606: Experimental Crystal Structure Determination

2016

Related Article: J.-U.Kim, D.Schollmeyer, M.Brehmer, R.Zentel|2011|J.Colloid Interface Sci.|357|428|doi:10.1016/j.jcis.2011.02.006

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(rac)-1-heptan-2-ylureaExperimental 3D Coordinates
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CCDC 151383: Experimental Crystal Structure Determination

2006

Related Article: P.Deindorfer, T.Geiger, D.Schollmeyer, Jian Hui Ye, R.Zentel|2006|J.Mater.Chem.|16|351|doi:10.1039/b510474b

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersEthyl 2-((octylamino)carbonyl)hydrazinecarboxylateExperimental 3D Coordinates
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