Výsledky vyhledávání - "Frank Morgenroth"

Divergent Synthesis of Polyphenylene Dendrimers: The Role of Core and Branching Reagents upon Size and Shape

Autor: Günter Lieser, Uwe-Martin Wiesler, Klaus Müllen, Alexander J. Berresheim, Frank Morgenroth

Publikováno v: Macromolecules. 34:187-199

Monodisperse polyphenylene dendrimers up to the fourth generation were synthesized using a divergent growth protocol. By varying the core, dendrimers with dumbbell-, tetrahedral- and propeller-like structures were synthesized. Because of the high-den

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2ee44c1fa4295fab8133d4cc4fae790
https://doi.org/10.1021/ma991519m

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2,5-diphenyl-3,4-bis[p-(phenylethynyl)phenyl]cyclopentadienone and product of its Diels-Alder homocondensation

Autor: Mukhamed L. Keshtov, Nataliya M. Belomoina, S. V. Keshtova, G. I. Timofeeva, Klaus Müllen, Inga A. Ronova, A. N. Shchegolikhin, Rusanov Aleksandr L, Frank Morgenroth, Pavel V. Petrovskii

Publikováno v: Russian Chemical Bulletin. 48:944-948

A new monomer of the ABA type, 2,5-diphenyl-3,4-bis[p-(phenylethynyl)phenyl]-cyclopentadienone, was synthesized. The Diels-Alder homocondensation of the monomer resulted in a highly branched polyphenylene (Mw=160000), readily soluble in organic solve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e931abf5da5710510f64981bdf26215b
https://doi.org/10.1007/bf02494642

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Dendritic and hyperbranched polyphenylenes via a simple Diels-Alder route

Autor: Klaus Müllen, Frank Morgenroth

Publikováno v: Tetrahedron. 53:15349-15366

A Diels-Alder route to dendritic and hyperbranched polyphenylenes, based on hexa(penta)phenylbenzene units, is described. Using ethynyl-, propynyl- and phenylethynyl-substituted tetraphenylcyclopentadienones 1c−e, hyperbranched polymers with molecu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a872cdb02063915c30293777c3428b71
https://doi.org/10.1016/s0040-4020(97)00967-8

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The benzene ring as modulus: synthesis and supramolecular ordering of novel conjugated polymers

Autor: Thomas Soczka-Guth, Ullrich Scherf, Frank Morgenroth, Klaus Müllen, Gerrit Klärner, Maren Müller

Publikováno v: Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 355:715-726

Conjugated polymers possess attractive electronic and optical properties which also qualify them as active components of devices. Many conjugated polymers are made up of benzenoid building blocks. The functionalization of benzene rings is therefore a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7045bd98e3c03111e940a42309b0fcc5
https://doi.org/10.1098/rsta.1997.0038

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Polyphenylene Dendrimers: From Three-Dimensional to Two-Dimensional Structures

Autor: Erik Reuther, Klaus Müllen, Frank Morgenroth

Publikováno v: Angewandte Chemie International Edition in English. 36:631-634

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18502a4d233dcde2a71843e519c0f946
https://doi.org/10.1002/anie.199706311

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Conjugated oligomers and polymers —new routes, new structures

Autor: Gerrit Klärner, Frank Morgenroth, Klaus Müllen, M. Wehmeier, Markus Müller, Thomas Soczka-Guth

Publikováno v: Synthetic Metals. 84:297-301

We discuss new conjugated materials which are formally derived from classical polymers such as PPP, PPV and PAni. In this context strategies for the systematic separation of dipoles in PPV's, the planarization of PPP-type structures and the design of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39fa7f490a6bc95a0a5eee9aaa70d5c6
https://doi.org/10.1016/s0379-6779(97)80759-x

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Nanosized polyphenylene dendrimers based upon pentaphenylbenzene units

Autor: Frank Morgenroth, Christian Kübel, Klaus Müllen

Publikováno v: Journal of Materials Chemistry. 7:1207-1211

A facile divergent synthesis of monodisperse polyphenylene dendrimers having diameters of 21–55 A is presented. These nanoparticles have been preparedvia a [2+4]cycloaddition–deprotection sequence using an excess of tetraphenylcyclopentadienone 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d49a551b14eede0ec765c2c640feb30
https://doi.org/10.1039/a700032d

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