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Christoph Weder
Researcher at University of Fribourg
Publications - 393
Citations - 26821
Christoph Weder is an academic researcher from University of Fribourg. The author has contributed to research in topics: Polymer & Nanocomposite. The author has an hindex of 80, co-authored 361 publications receiving 22851 citations. Previous affiliations of Christoph Weder include Massachusetts Institute of Technology & ETH Zurich.
Papers
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Journal ArticleDOI
Challenges in Synthesis and Analysis of Asymmetrically Grafted Cellulose Nanocrystals via Atom Transfer Radical Polymerization.
Gwendoline Delepierre,Katja Heise,Kiia Malinen,Tetyana V. Koso,Leena Pitkänen,Emily D. Cranston,Ilkka Kilpeläinen,Mauri A. Kostiainen,Eero Kontturi,Christoph Weder,Justin O. Zoppe,Alistair W. T. King +11 more
TL;DR: In this paper, two reaction pathways are compared to selectively attach atom-transfer radical polymerization (ATRP) initiators to the reducing end-groups (REGs) of CNCs, using reductive amination.
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Metal–organic frameworks: Framing upconversion materials
Yoan C. Simon,Christoph Weder +1 more
TL;DR: Solid-state organic materials that convert low-power visible light into higher-energy radiation have been synthesized using metal–organic frameworks and this approach could be used to make polymers that increase the efficiency of photovoltaic devices.
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Stiffness-Changing of Polymer Nanocomposites with Cellulose Nanocrystals and Polymeric Dispersant.
TL;DR: It is shown here that the addition of PVA to the EO-EPI/CNC nanocomposite increases the modulus difference between the dry and the wet state by a factor of up to four compared to thenanocomposites without the PVA.
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Melt-Spun Nanocomposite Fibers Reinforced with Aligned Tunicate Nanocrystals.
Alexandre Redondo,Sourav Chatterjee,Pierre Brodard,LaShanda T. J. Korley,Christoph Weder,Ilja Gunkel,Ullrich Steiner +6 more
TL;DR: Tensile tests reveal that fibers and films, at similar P-tCNC contents, display Young’s moduli and strain-at-break that are within the same order of magnitude, but the stress- at-break was found to be ten-times higher for fibers, conferring them a superior toughness over films.
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Novel Chromogenic Esters of ortho-Phenylazonaphthols
TL;DR: The photo-labile benzoic acid esters of Sudan I and Sudan Red B, two representatives of the ortho-phenylazonaphthol dye family, exhibited hydroxyazo-hydrazone tautomerism with the hydrazone as the strongly favored form as mentioned in this paper.