Results 131 to 140 of about 1,613 (208)
Direct laser writing-enabled 3D printing strategies for microfluidic applications. [PDF]
Lab ChipYoung OM, Xu X, Sarker S, Sochol RD.
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Polymer surface modification by photografting of functional nitroxides [PDF]
European Polymer Journal, 2017 The UV-initiated photografting of X-TEMPO onto the surface of ethylene/a-olefin copolymer (EOC) and of styrene-b-(ethylene-co-butene)-b-styrene (SEBS) block copolymer films is here described. In particular, 4-benzoyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl (BzOTEMPO), 4-(1-naphthoate)-2,2,6,6-tetramethylpiperidine-1-oxyl (NfO-TEMPO) and 4-(4,4, 5,5,6,6,
Serena Coiai +2 more
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Photografting of acrylic monomers on polystyrene support [PDF]
Journal of Applied Polymer Science, 1992 AbstractPolystyrene xanthates, prepared through the reaction of chloromethylated polystyrene resins with potassium O‐ethyl xanthate, have been used for the photografting of acrylic monomers. Monomers such as acrylamide, acrylic acid, methacrylic acid, and methyl methacrylate were grafted onto the xanthate polymers on irradiation with a 450 W medium ...
A. Ajayaghosh, S. Das
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Fabrication of a polypropylene immunoassay platform by photografting reaction [PDF]
Materials Science and Engineering: C, 2019 The technology of an immunoassay detection platform is critical to clinical disease diagnoses, especially for developing a medical diagnostic system. A polymer-based immunoassay platform was fabricated on nonwoven fabric polypropylene (PP) using a photografting reaction to graft 2-hydroxyethyl methacrylate (HEMA) and sulfobetaine (SBMA).
Jing Jin +4 more
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Photografting Modification of PET Nucleopore Membranes
Journal of Macromolecular Science - Pure and Applied Chemistry, 2003PET nucleopore membranes were modified by photografting polymerization. The grafted membrane has a well-defined structure. Grafting polymerization is confined on the membrane surface; no graft occurs inside membrane pores. The grafted PAA was characterized with ESCA, and the morphology of grafted membranes was observed by SEM.
Biao Yang, Wantai Yang
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Photografting of polymer monoliths by a crosslinking monomer
Journal of Chromatography A, 2020The surface of fifteen polymethacrylate monolithic stationary phases has been modified by a post-polymerization UV-initiated grafting reaction with bifunctional poly(ethylene glycol)dimethacrylate monomers. An effect of crosslinking monomer length, its concentration in the modification mixture, and a time of the modification reaction have been selected
Martina Komendová +2 more
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Surface photografting of polymer fibers, films and sheets
Nuclear Instruments & Methods in Physics Research B, 1999Abstract In our recent work on surface photografting, we have studied the molecular mechanism of the grafting reaction and found that the far UV irradiation at 250 nm is the main activation wavelength for the benzophenone to singlet state (S2 about 110 kcal/mol). When the BPS2 is transformed to BPS1 and the triplet states T1 and T2 (about 70 kcal/mol)
B Rånby
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Substrate-Independent Photografting of Hyaluronic Acid for Antifouling Coatings
LangmuirThis work introduces a substrate-independent method for covalently immobilizing pristine hyaluronic acid (HA) as an antifouling coating on various surfaces. A tyrosine-conjugated perfluorophenyl azide (Tyr-PFPA) was synthesized, containing a tyrosine moiety that undergoes tyrosinase-mediated oxidation to form a melanin-mimetic film on various ...
Daeun Chu +4 more
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Photografting: a method for surface modification
Chemical Society ReviewsPhotografting enables the covalent modification of a wide variety of surfaces—including polymers, metals, carbons, and oxides—through irradiation of a deposited solution.
Jean Pinson
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Surface photografting of arylazide derivatives on chalcogenide glasses [PDF]
Journal of Non-Crystalline Solids, 2014 Arylazide derivatives have been used for the surface functionalization of chalcogenide glasses. These compounds are photografted by a deposition step followed by an irradiation step under UV light. Two photosensitive molecules were studied: the so-called "molecular clip" which is a phenylazide moiety linked via a propylene chain to a succinimidyl ester
Julien Amalric +3 more
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