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Holger Frauenrath

Cette personne a quitté l’EPFL

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Publications associées (53)

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Low-temperature Preparation of Functional Carbon Nanocapsules via Self-assembly and Carbonization of Hexayne Amphiphiles

Holger Frauenrath, Stephen Schrettl

Swiss Chemical Soc2013

Aggregates from Perylene Bisimide Oligopeptides as a Test Case for Giant Vibrational Circular Dichroism

Holger Frauenrath, Roman Niklaus Marty

Vibrational circular dichroism (VCD) spectroscopy has become an excellent tool to study biological nanostructures and biomimetic materials in their functional environment and is thus complementary to otherwise employed diffraction, imaging, and spectroscop ...

Amer Chemical Soc2014

Perfluorophenyl-Phenyl Interactions in the Crystallization and Topochemical Polymerization of Triacetylene Monomers

Holger Frauenrath

A series of symmetrically and unsymmetrically substituted octa-2,4,6-triyne-1,8-diol derivatives with benzoyl, 4-dodecyloxybenzoyl, as well as perfluorobenzoyl substituents were prepared and investigated with respect to their crystal structures and topoche ...

2009

Multi-Set Point Intermittent Contact (MUSIC) Mode Atomic Force Microscopy of Oligothiophene Fibrils

Holger Frauenrath, Liangfei Tian

We developed MUSIC-mode atomic force microscopy (AFM) to emulate intermittent contact mode AFM without a feedback loop and in the absence of lateral forces. This single-pass approach is based On maps of amplitude-phase-distance curves and allows the height ...

2012

Method for the preparation of a coating comprising oligomeric alkynes

Yves Leterrier, Holger Frauenrath, Stephen Schrettl

The invention relates to a method for the preparation of a coating comprising at least one coating layer on a substrate, the method comprising the steps of a. providing monomers of the type R- (N)x-(L)m- (C=C)n-(L')o- (N')y-R', wherein R is a head moiety, ...

2017

Multi-material rail pad and method for manufacturing same

Maurice Ammann, Véronique Michaud, John Christopher Plummer, Joël Cugnoni, Holger Frauenrath, Oguzhan Oguz, Adrien Julien Demongeot

The invention relates to a rail pad (10, lOa-v, 10α-η) comprising: a) a pad matrix (1) comprising a first material and b) at least one damping element (2) at least partially encapsulated or embedded in the pad matrix (1), said damping element (2) comprisin ...

2022

Synthesis and Characterisation of Semiaromatic Polyamides Comprising Benzofurobenzofuran Repeating Units

Rosario Scopelliti, Anne-Clémence Corminboeuf, Farzaneh Fadaei Tirani, Holger Frauenrath, Alberto Fabrizio, Bilal Özen, Daniel Görl, Julien Philippe Cretenoud, Thomas Schmaltz

Semiaromatic polyamides are attractive engineering polymers owing to their outstanding thermo-mechanical properties. To expand the scope of semiaromatic polyamides by additional optoelectronic features, one may consider the incorporation of extended pi-con ...

2017

Dynamics of hydrogen-bonded end groups in bulk polymers revealed by solid-state NMR spectroscopy relaxation dispersion experiments

John Christopher Plummer, Holger Frauenrath, Laura Piveteau, Sophia Thiele

The dynamic nature of supramolecular networks of telechelic polymers offers new avenues for the design of novel materials with enhanced melt strength and extensibility, increased energy at break, or self-healing properties. However, monitoring the kinetics ...

2025

Composition and method for the preparation of sheets, films, fibers, and molded parts

Holger Frauenrath, Oguzhan Oguz, Daniel Görl, Shuichi Haraguchi

The invention describes a composition containing a) a functionalized polymer (10) that comprises at least one polyester segment (13) and at least one, in particular at least two, polymer aggregating segment (11, 12) capable of forming non-covalent bonds ba ...

2020

Droplets Out of Equilibrium

Francesco Stellacci, Holger Frauenrath

American Association for the Advancement of Science2013

A Multi-Step Single-Crystal-to-Single-Crystal Bromodiacetylene Dimerization

Rosario Scopelliti, Anne-Clémence Corminboeuf, Andrzej Sienkiewicz, Holger Frauenrath, Stephen Schrettl, Roman Niklaus Marty, Tobias Hoheisel, Tanya Kumanova Yordanova

Packing constraints and precise placement of functional groups are the reason that organic molecules in the crystalline state often display unusual physical or chemical properties not observed in solution. Here we report a single-crystal-to-single-crystal ...

Nature Publishing Group2013

Materials Taking a Lesson from Nature

Holger Frauenrath, Emmanuel Croisier, Liangfei Tian

Structural biomaterials with their often extraordinary properties and versatile functions are typically constructed from very limited sets of building blocks and types of supramolecular interactions. In this review we discuss how, inspired by nature's desi ...

Swiss Chemical Soc2013

Color conversion films comprising polymer-substituted organic fluorescent dyes

Libero Zuppiroli, Rolando Ferrini, Holger Frauenrath, Stéphane Suarez, Roman Niklaus Marty

The present invention concerns a color conversion film comprising at least one active layer, said layer comprising an organic fluorescent dye containing a fluorescent core, wherein said dye is substituted with at least one polymer segment. It also concerns ...

2012