Free Radical Polymerization
Free-Radical Polymerization of Polystyrene Using Microreaction Technology
... solution free-radical polymerization of acrylates in a tube reactor of 500 µm of internal diameter using AIBN (azobisisobutyronitrile) as the chemical ...PS polymerization since no significant ...
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Flavones as Natural Photoinitiators for Light Mediated Free-Radical Polymerization via Light Emitting Diodes
... 1) Chemical compounds: 4-diphenylphosphinobenzoic acid (4-DPPBA), ethyl 4-(dimethylamino)benzoate (EDB), phenyl-N-tert-butylnitrone (PBN) and N-phenylglycine (NPG) were obtained from Sigma Aldrich (Scheme 2). ...
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Novel ketone derivatives based photoinitiating systems for free radical polymerization under mild conditions and 3D printing
... Moreover, this photolysis characterization would be useful to explain the distinct photoinitiating abilities of the ketone derivatives containing the same central cyclohexanone core but different peripheral substituting ...
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Allyloxy ketones as efficient photoinitiators with high migration stability in free radical polymerization and 3D printing
... Herein, five ketone derivatives substituted by the same peripheral 1,3- bis(allyloxy)benzene group are elaborately designed and synthesized for the first time. In combination with an amine and an iodonium salt, these ...
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New 1,8-Naphthalimide Derivatives as Photoinitiators for Free-Radical Polymerization Upon Visible Light
... Keywords: free-radical polymerization; photoinitiators; light-emitting diodes (LEDs); visible light; naphthalimide derivatives ...initiate polymerization is becoming less and less ...
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Sodium nitrite and ascorbic acid: a metal-free combination that controls the free-radical polymerization of tert-butyl methacrylate in water
... the polymerization temperature of 80°C, the amount of nitroxyl radicals decreases with time, which is in line with the loss of control observed at increasing monomer ...
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Free-Radical Polymerization upon Near-Infrared Light Irradiation, Merging Photochemical and Photothermal Initiating Methods
... methacrylate polymerization under low light intensity at 785 ...the polymerization can be started and stopped whenever the user ...thermal polymerization is already widely used with a long history, ...
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Cobalt-mediated radical (co)polymerization of vinyl chloride and vinyl acetate
... by free radical polymerization at 70 40°C in bulk (V70 as initiator) and at 80°C in suspension (confidential initiator) were considered as ...
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Simultaneous initiation of radical and cationic polymerization reactions using the "G1" copper complex as photoredox catalyst: Applications of free radical/cationic hybrid photopolymerization in the composites and 3D printing fields.
... curing polymerization was ...The polymerization ability of theses hybrid systems can be confidently assigned to an improved reactivity and efficiency of the G1 based PIS, resulting from the presence of ...
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Tailor-made polymers by organometallic-mediated radical polymerization (OMRP)
... growing radical chains by a transition metal ...the polymerization, the dominating population of inactive chains is in equilibrium with a low amount of active ones, which strongly decreases the probability ...
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Polymer design by cobalt-mediated radical polymerization
... Organometallic-Mediated Radical Polymerization ...growing radical chains by a transition metal species (See scheme ...the polymerization, the dominating population of inactive chains is in ...
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Relationship between one-electron transition-metal reactivity and radical polymerization processes
... of free radicals for highly reactive propagating radicals, however, is through the OMRP ...controlled polymerization of vinyl acetate by this technique using Co(acac) 2 as spin ...the polymerization ...
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Design of well-defined N-vinylamides based copolymers via organometalllic-mediated radical polymerization
... Design of Well-Defined N-Vinylamides Based Copolymers via Organometallic-Mediated Radical Polymerization A. Debuigne a , A. Kermagoret a , C.-A. Fustin b , R. Poli c , C. Jérôme a , C. Detrembleur a a ...
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Screening anti-colorectal cancer drugs: free radical chemotherapy
... a free radical mechanism is involved in the cytotoxicity of most of a panel of 12 anti-colorectal cancer drugs tested against a panel of 9 colorectal cancer ...involve free radical oxidative ...
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Origin of Activity in Cu-, Ru-, and Os-Mediated Radical Polymerization
... a radical polymerization has dramatic implications on the absolute amount of complex ultimately required to successfully mediate the polymerization (vide ...
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COST Action CM1201 “Biomimetic Radical Chemistry”: free radical chemistry successfully meets many disciplines
... of free radical was significantly developed in the ...a radical cascade reaction for the preparation of pyrroli- dine derivatives, using thiyl radical addition to a ter- minal alkyne function ...
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The frequently overlooked importance of solvent in free radical syntheses
... and termination. 47 In these experiments, the rates of chain initiation were held constant at known and controlled values and overall rates of reduction of alkyl halides in cyclo- hexane were reproducible. 47 Small ...
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Fluoroalkyl Pentacarbonylmanganese(I) Complexes as Initiators for the Radical (co)Polymerization of Fluoromonomers
... The thermal activation of 2 at 80 ◦ C for 24 h (entry 1 in Table 4 ) led only to a small amount of a brown-yellowish powder. However, this material does not contain any PVDF, as shown by the absence of observable ...
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Precision design of novel copolymers and nanohybrids by cobalt-mediated radical polymerization
... EPF 2011, XII GEP Congress, 26 th June - 1 st July 2011, Granada, Spain Precision design of novel copolymers and nanohybrids by Cobalt Mediated Radical Polymerization (CMRP) Christophe Detrembleur, Marie ...
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Influence of confinement on free radical chemistry in layered nanostructures
... of free radicals on different nuclei and also to reaction rates of elementary chemical reactions at a wide range of temperatures, from ultra-low temperatures where quantum effects are man- ifested, to temperatures ...
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