V
Virgil Percec
Researcher at University of Pennsylvania
Publications - 816
Citations - 46092
Virgil Percec is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Polymerization & Liquid crystal. The author has an hindex of 101, co-authored 798 publications receiving 42465 citations. Previous affiliations of Virgil Percec include University of California, Berkeley & University of Ulm.
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Zero-valent metals accelerate the neopentylglycolborylation of aryl halides catalyzed by NiCl2-based mixed-ligand systems.
Pawaret Leowanawat,Ana-Maria Resmerita,Costel Moldoveanu,Chi Liu,Na Zhang,Daniela A. Wilson,Lisa M. Hoang,Brad M. Rosen,Virgil Percec +8 more
TL;DR: In this article, the NiCl2(dppp)/dppf combined with the reducing effect of zerovalent Zn and of other metals was used to demonstrate a method for the dramatic acceleration of the rate and for the enhancement of the yield of Ni-catalyzed neopentylglycolborylation of aryl halides.
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Liquid crystalline polyethers based on conformational isomerism. 2. Thermotropic polyethers and copolyethers based on 1-(4-hydroxyphenyl)-2-(2-methyl-4-hydroxyphenyl)ethane and flexible spacers containing an odd number of methylene units
Virgil Percec,Raymond Yourd +1 more
TL;DR: The nombre d'unites methylene est de 5, 7, 9 et 11 as discussed by the authors, and polyetherification catalysee par transfert de phase is de 5.
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Nanomechanical Function Made Possible by Suppressing Structural Transformations of Polyarylacetylenes
Jonathan G. Rudick,Virgil Percec +1 more
TL;DR: In this paper, self-assembling dendrons sterically disfavor the cisoid conformation through which 6π-electrocyclization proceeds in cis-polyarylacetylenes.
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A 13C-NMR study of the microstructure of polyphenylacetylenes prepared with MoCl5 and WCl6
Virgil Percec,Peter L. Rinaldi +1 more
TL;DR: In this article, the microstructure of polyphenylacetylenes prepared with MoCl5 and WCl6 catalysts in several solvents was studied by 13C-NMR spectroscopy.
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Liquid crystalline polymers containing mesogenic units based on half-disc and rod-like moieties. I, Synthesis and characterization of 4-(11-undecan-1-yloxy)-4'-[3,4,5-tri(p-n-dodecan-1-yloxybenzyloxy)benzoate]biphenyl side groups
Virgil Percec,J. Heck +1 more
TL;DR: In this paper, l'olefine et le polymere present a mesophase plasmidique monotrope avec une texture optique en eventail, a.k.a. polysiloxane.