G
Goran Ungar
Researcher at Xi'an Jiaotong University
Publications - 328
Citations - 16490
Goran Ungar is an academic researcher from Xi'an Jiaotong University. The author has contributed to research in topics: Liquid crystal & Thermotropic crystal. The author has an hindex of 65, co-authored 311 publications receiving 15024 citations. Previous affiliations of Goran Ungar include University of Reading & University of Pennsylvania.
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Journal ArticleDOI
Controlling polymer shape through the self-assembly of dendritic side-groups
Virgil Percec,Cheol Hee Ahn,Goran Ungar,Duncan J. P. Yeardley,Martin Möller,Sergei S. Sheiko +5 more
TL;DR: In this article, the authors report a general strategy for the rational control of polymer conformation through self-assembly of quasi-equivalent monodendritic (branched) side-groups attached to flexible backbones.
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Interplay of Physical Structure and Photophysics for a Liquid Crystalline Polyfluorene
TL;DR: In this article, a structural model based on intrachain ordering was proposed to account for the changes of the absorption spectrum of poly(9,9-dioctylfluorene) (PFO) films under certain physicochemical treatment protocols.
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Supramolecular dendritic liquid quasicrystals
TL;DR: It is shown that metal alloys known to defy the rules of crystallography and form so-called quasicrystals, which have rotational symmetry other than the allowed two-, three-, four- or six-fold symmetry, can also exist in the scaled-up micellar phases.
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Direct Visualization of Individual Cylindrical and Spherical Supramolecular Dendrimers
Steven D. Hudson,Hannes Jung,Hannes Jung,Virgil Percec,Virgil Percec,Wook-Dong Cho,Wook-Dong Cho,Gary Johansson,Gary Johansson,Goran Ungar,Goran Ungar,Venkatachalapathy S. K. Balagurusamy,Venkatachalapathy S. K. Balagurusamy +12 more
TL;DR: In this article, the stiffness of cylindrical supramolecular dendrimers was evaluated by examining their planar texture and its defects, showing that they are self-assembled, self-organized, and aligned spontaneously and simultaneously in hexagonal columnar or cubic thermotropic liquid-crystal phases with high uniformity.
Journal ArticleDOI
Rational Design of the First Spherical Supramolecular Dendrimers Self-Organized in a Novel Thermotropic Cubic Liquid-Crystalline Phase and the Determination of Their Shape by X-Ray-Analysis
TL;DR: In this article, the rational design, synthesis via a new convergent approach, and the characterization of four generations of monodendrons based on the AB3 building block methyl 3,4,5-trishydroxybenzoate are described.