Výsledky vyhledávání - "Dennis Oprych"

Mediated Generation of Conjugate Acid by UV and Blue Sensitizers with Upconversion Nanoparticles at 980 nm

Publikováno v: Chemistry (Weinheim an Der Bergstrasse, Germany)

NIR and UV exposure of systems comprising upconversion nanoparticles (UCNP) based on NaYF4:Tm/Yb@NaYF4, a sensitizer absorbing either in the blue or UV region, and an onium salt with weak coordinating anion resulted in formation of conjugate acid (co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c6127f200165254f30ab310a7f53e37
https://doi.org/10.1002/chem.202005076

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NIR‐Sensitized Activated Photoreaction between Cyanines and Oxime Esters: Free‐Radical Photopolymerization

Autor: Qunying Wang, Fan Shuheng, Alfred Feilen, Knut Reiner, Dietmar Keil, Bernd Strehmel, Dennis Oprych, Yulian Pang, Sergey Popov, Yingquan Zou, Yuriy L. Slominsky

Publikováno v: Angewandte Chemie (International Ed. in English)

Cyanines comprising either a benzo[e]‐ or benzo[c,d]indolium core facilitate initiation of radical photopolymerization combined with high power NIR‐LED prototypes emitting at 805 nm, 860 nm, or 870 nm, while different oxime esters function as rad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf51576c56904bc56464d6659d575ed3
https://doi.org/10.1002/anie.202004413

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Photophysics of Up‐Conversion Nanoparticles: Radical Photopolymerization of Multifunctional Methacrylates Comprising Blue‐ and UV‐Sensitive Photoinitiators

Autor: Eugeny Ermilov, Christian Schmitz, Bernd Strehmel, Xavier Allonas, Dennis Oprych, Rainer Erdmann, Christian Ley

Publikováno v: ChemPhotoChem. 3:1119-1126

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e99f2397a8f432cf5806e4ca46bd35b
https://doi.org/10.1002/cptc.201900196

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Upconversion-Nanoparticle-Assisted Radical Polymerization at λ =974 nm and the Generation of Acidic Cations

Autor: Ceren Kütahya, Bernd Strehmel, Dennis Oprych, Zhijun Chen, Si Wu, Chaoming Xie

Publikováno v: ChemPhotoChem. 1:499-503

Upconversion nanoparticles (UCNPs) sensitized photolytitic cleavage of the blue/UV photoinitiator bis(4-methoxybenzoyl) diethyl germanium (1). 1 initiated radical photopolymerization in combination with NaYF4:TmYb@NaYF4 UCNPs. A 974 nm NIR laser serv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d566e4cabce0a5b7ed11de50bb08b11
https://doi.org/10.1002/cptc.201700131

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NIR-Sensitized Photopolymerization with Iodonium Salts Bearing Weak Coordinating Anions

Autor: Yasuhiro Ueda, Bernd Strehmel, Dennis Oprych, Michael Schlapfer, Thomas Brömme, Atsushi Shiraishi, Christian Schmitz

Publikováno v: Journal of Photopolymer Science and Technology. 29:609-615

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5ddd8b0f15b448c3672a79e3fdaf9ca
https://doi.org/10.2494/photopolymer.29.609

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Advances of Near Infrared Sensitized Radical and Cationic Photopolymerization: from Graphic Industry to Traditional Coatings

Autor: Jochen S. Gutmann, Christian Schmitz, Annett Halbhuber, Thomas Brömme, Bernd Strehmel, Dennis Oprych

Publikováno v: Journal of Photopolymer Science and Technology. 29:111-121

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f9572a212e8a789062aa2eef5822228
https://doi.org/10.2494/photopolymer.29.111

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Digital Imaging of Lithographic Materials by Radical Photopolymerization and Photonic Baking with NIR Diode Lasers

Autor: Patrick Lüs, Markus Grabolle, Christian Schmitz, Bernd Strehmel, Andre Wenda, Knut Reiner, Dennis Oprych, Steffen Ernst, Dietmar Keil, Harald Baumann, Veronika Strehmel, Thomas Brömme, Ute Resch-Genger

Publikováno v: Chemical Engineering & Technology. 39:13-25

Photo-initiated cross-linking of multifunctional acrylic esters in polymeric binders was investigated based on digital imaging using the Computer-to-Plate (CtP) technology applying laser exposure in the near-infrared (NIR). Generation of initiating r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::353defa350013bd23eba620462d6e21c
https://doi.org/10.1002/ceat.201500453

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NIR Light for Initiation of Photopolymerization

Autor: Ceren Kütahya, Bernd Strehmel, Dennis Oprych, Christian Schmitz

Publikováno v: Photopolymerisation Initiating Systems ISBN: 9781782629627

NIR light represents an interesting alternative for initiating both radical and cationic polymerization. It also offers the opportunity to provide non-radiative heat generated by the NIR sensitizer, resulting in initiation of physical processes, such

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e86a1f64bda4120bf25310275d84261
https://doi.org/10.1039/9781788013307-00431

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New iodonium salts in NIR sensitized radical photopolymerization of multifunctional monomers

Autor: Thomas Brömme, Bernd Strehmel, Dennis Oprych, Paula Sevenini Pinto, Joachim Horst

Publikováno v: RSC Advances. 5:69915-69924

Reactivity of new iodonium salts [A-I-B]+X− was studied with near infrared (NIR) initiated radical polymerization by photo-DSC using the polymethine dye S1 (5-(6-(2-(3-ethyl-1,1-dimethyl-1H-benzo[e]indol-2(3H)-ylidene)ethylidene)-2-(2-(3-ethyl-1,1-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a09792934a83ca4e940b7c9411745d02
https://doi.org/10.1039/c5ra12236h

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