Results 11 to 20 of about 22,210 (290)
Exploring Electrochemically Mediated ATRP of Styrene [PDF]
Processes, 2021 Electrochemically mediated atom transfer radical polymerization (eATRP) of styrene was studied in detail by using CuBr2/TPMA (TPMA = tris(2-pyridylmethyl)amine) as a catalyst. Redox properties of various Cu(II) species were investigated in CH3CN, dimethylformamide (DMF), and dimethyl sulfoxide (DMSO) both in the absence and presence of 50% (v/v ...
Francesco De Bon +3 more
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Fast Bulk Depolymerization of Polymethacrylates by ATRP
ACS Macro Letters, 2023 Fast bulk depolymerization of poly(n-butyl methacrylate) and poly(methyl methacrylate), prepared by atom transfer radical polymerization (ATRP), is reported in the temperature range between 150 and 230 °C. Depolymerization of Cl-terminated polymethacrylates was catalyzed by a CuCl2/TPMA complex (0.022 or 0.22 equiv vs P-Cl) and was studied using TGA ...
De Luca Bossa, Ferdinando +2 more
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BioResources, 2023 Lignin is a potential natural sunlight protector because its benzene derivative structure can absorb UV rays. Pure lignin is not good enough for sunblock because lignin is not fully dispersed in cream, and the range of absorbed UV rays is not broad.
Rui Wen, Shiyu Fu, Hui Zhang
doaj +2 more sources
PVDF-Based Fluoropolymer Modifications via Photoinduced Atom Transfer Radical Polymerizations
Advances in Polymer Technology, 2022 Graft modifications of PVDF fluoropolymers have been identified as the efficient route to improve the properties and expand the applications. Taking advantage of C-F and C-Cl bonds in the repeat units, atom transfer radical polymerizations (ATRP) were ...
Nuo Xu +12 more
doaj +1 more source
Kinetic Modeling of ICAR ATRP [PDF]
Macromolecular Theory and Simulations, 2011 AbstractKinetic modeling is used to better understand and optimize initiators for continuous activator regeneration atom‐transfer radical polymerization (ICAR ATRP). The polymerization conditions are adjusted as a function of the ATRP catalyst reactivity for two monomers, methyl methacrylate and styrene.
Dominik Konkolewicz +5 more
openaire +2 more sources
Macromolecular Engineering by Applying Concurrent Reactions with ATRP [PDF]
Polymers, 2020 Modern polymeric material design often involves precise tailoring of molecular/supramolecular structures which is also called macromolecular engineering. The available tools for molecular structure tailoring are controlled/living polymerization methods, click chemistry, supramolecular polymerization, self-assembly, among others.
Yu Wang +2 more
openaire +2 more sources
Effect of Reactant Concentration Variations on the Kinetics of Atom Transfer Radical Polymerization of Acrylonitrile [PDF]
علوم و تکنولوژی پلیمر, 2013 Polyacrylontrile synthesis, via atom transfer radical polymerization, is studied in various initiator concentrations, transitional metal catalyst and different concentrations of CuBr2.
H. Roghani-Mamaqani +3 more
doaj +1 more source
Controlled surface initiated polymerization of N-isopropylacrylamide from polycaprolactone substrates for regulating cell attachment and detachment [PDF]
, 2012 Poly(ε-caprolactone) (PCL) substrates were modified with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) brushes to direct and control cellular attachment and detachment. Prior to brush growth, the surface of PCL was activated by a diamine to allow
Blitterswijk, C.A. van +5 more
core +3 more sources
Validation of Smart Nanoparticles as Controlled Drug Delivery Systems: Loading and pH-Dependent Release of Pilocarpine [PDF]
, 2018 Micelles are good devices for use as controlled drug delivery systems because they exhibit the ability to protect the encapsulated substance from the routes of degradation until they reach the site of action.
Galbis Fuster, Elsa +6 more
core +6 more sources
Synthesis of cellulose based graft polymers using metal-catalyzed living radical polymerization [PDF]
شیمی کاربردی روز, 2016 A copolymer composed of styrene and acrylonitrile was grafted onto cellulose backbone by free radical polymerization and atom transfer radical polymerization (ATRP) method.
مجتبی عباسیان +1 more
doaj +1 more source