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a mediator. For this reason, this type of reaction is referred to as cobalt mediated radical polymerization. About half of all commercial polymers are
Cobalt-mediated radical polymerization
Cobalt-mediated_radical_polymerization
Polymerization process involving free radicals as repeating units
In polymer chemistry, radical polymerization (RP) is a method of polymerization by which a polymer forms by the successive addition of a radical to building
Radical_polymerization
polymerization RDP. Living free radical polymerization is a type of living polymerization where the active polymer chain end is a free radical. Several
Living free-radical polymerization
Living_free-radical_polymerization
Type of chain polymerization
– sometimes misleadingly called 'free' radical polymerization – is one of the most widely used polymerization processes since it can be applied to a great
Reversible-deactivation radical polymerization
Reversible-deactivation_radical_polymerization
Chemical process
agents in dental restoration by 3M. Radical polymerization Living polymerization Cobalt Mediated Radical Polymerization Enikolopyan, N. S.; Smirnov, B. R
Catalytic_chain_transfer
Chemistry of compounds with a carbon to cobalt bond
processes. The weak cobalt(III)-carbon bond in vitamin B12 analogues can be exploited in a type of Cobalt mediated radical polymerization of acrylic and vinyl
Organocobalt_chemistry
English chemist (born 1962)
synthesis of N-maleimido-functionalized hydrophilic polymers via copper-mediated living radical polymerization: A suitable alternative to PEGylation chemistry
David_Haddleton
Alteration in the polymer properties under the influence of environmental factors
plastic polymers. The major chemical changes are oxidation and chain scission, leading to a reduction in the molecular weight and degree of polymerization of
Polymer_degradation
Hydrocarbon compound containing one or more C=C bonds
endoperoxide: Terminal alkenes are precursors to polymers via processes termed polymerization. Some polymerizations are of great economic significance, as they
Alkene
Family of organometallic compounds
tight fit of the metal in the N42- "pocket." In nature, the insertion is mediated by chelatase enzymes. The insertion of a metal in synthetic porphyrins
Transition metal porphyrin complexes
Transition_metal_porphyrin_complexes
Chemical reaction in which two molecules are joined due to a metal catalyst
especially useful for coupling involving heteroatom-C bonds. Iron- and cobalt-catalysis have also been investigated. The use of nickel-based catalysis
Cross-coupling_reaction
Ultrafine particles of silver between 1 nm and 100 nm in size
borohydride, the silver mirror reaction, the polyol process, seed-mediated growth, and light-mediated growth. Each of these methods, or a combination of methods
Silver_nanoparticle
Process for the dissociation of water into hydrogen and oxygen
can be used instead. Cobalt-based photocatalysts have been reported, including tris(bipyridine) cobalt(II), compounds of cobalt ligated to certain cyclic
Photocatalytic water splitting
Photocatalytic_water_splitting
Battery with a calcium electrode
are areas of study. Candidates include calcium manganese oxide, calcium cobalt oxide and titanium disulfide, hexacyanoferrates, or dual carrier batteries
Calcium_battery
American chemistry award
the elucidation of olefin polymerization and hydrocarbon oxidation mechanisms and development of early metal polymerization catalysts" John F. Hartwig
Willard_Gibbs_Award
Chemical element with atomic number 7 (N)
Trojan, I. A.; Denisov, V. N.; Boehler, R.; Hemley, R. J. (2004). "Polymerization of nitrogen in sodium azide". The Journal of Chemical Physics. 120 (22):
Nitrogen
Allotropes of carbon with a cylindrical nanostructure
discovered that co-vaporising carbon and transition metals such as iron and cobalt could specifically catalyse SWCNT formation. These discoveries triggered
Carbon_nanotube
Organometallic compound: Fe(II) sandwiched between two cyclopentadienyl rings
"Selective electrochemical generation of benzylic radicals enabled by ferrocene-based electron-transfer mediators". Chemical Science. 9 (2): 356–361. doi:10
Ferrocene
Allotrope of carbon
three-dimensional carbon frameworks. Single-strand polymers are formed using the Atom Transfer Radical Addition Polymerization (ATRAP) route. "Ultrahard fullerite"
Fullerene
Chemistry of carbon's allotrope fullerene
bond. Fullerenes can be considered radical scavengers. With a simple hydrocarbon radical such as the t-butyl radical obtained by thermolysis or photolysis
Fullerene_chemistry
Hypothetical scenario for the origin of life
perhaps cobalt, manganese, tungsten and zinc). The catalytic centers catalyzed autotrophic carbon fixation pathways generating small molecule (non-polymer) organic
Iron–sulfur_world_hypothesis
Ionization technique
called the "ultra fine metal plus liquid matrix method" that combined 30 nm cobalt particles in glycerol with a 337 nm nitrogen laser for ionization. Using
Matrix-assisted laser desorption/ionization
Matrix-assisted_laser_desorption/ionization
Any organic compound with alternating C–C and C≡C bonds
(Pt(−C≡C−)nPt, n = 8–14), palladium (Ar(−C≡C−)nPd, n = 3–5, Ar = aryl), and cobalt (Co3C(−C≡C−)nCCo3, n = 7–13) complexes. Long polyyne chains are said to
Polyyne
Class of chemical substance
polymerization in the confined space of MOF channels. Polymerization reactions in confined space might have different properties than polymerization in
Metal–organic_framework
Particle with size less than 100 nm
Nishiyama Y, Isogai A (August 2007). "Cellulose Nanofibers Prepared by TEMPO-Mediated Oxidation of Native Cellulose". Biomacromolecules. 8 (8): 2485–2491. doi:10
Nanoparticle
Chemical element with atomic number 26 (Fe)
neighbors cobalt and nickel in the periodic table, which are also ferromagnetic at room temperature and share similar chemistry. As such, iron, cobalt, and
Iron
Method used to apply surface coatings
photovoltaic devices. Certain carbides and nitrides confer wear-resistance. Polymerization by CVD, perhaps the most versatile of all applications, allows for super-thin
Chemical_vapor_deposition
Metalloprotein that binds with oxygen
oxidase (MAO)-mediated deamination of dopamine and the subsequent reaction of accessible ferrous iron to generate highly toxic hydroxyl radicals". This may
Hemoglobin
Type of synthetic microstructure
carbonaceous gas decomposes on contact with catalytic surface (e.g. iron, cobalt, or nickel). Decomposition leaves behind elemental carbon which diffuses
Vertically aligned carbon nanotube arrays
Vertically_aligned_carbon_nanotube_arrays
Chemical element with atomic number 25 (Mn)
element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes
Manganese
Chemical element with atomic number 24 (Cr)
PMID 9380835. Weckhuysen, Bert M; Schoonheydt, Robert A (1999). "Olefin polymerization over supported chromium oxide catalysts" (PDF). Catalysis Today. 51
Chromium
in liquids it shows excellent sorption capacities. It can remove copper, cobalt, cadmium, arsenate, and organic solvents. Research suggests that graphene
Potential applications of graphene
Potential_applications_of_graphene
Solar-powered catalysts made from environmentally friendly materials
pesticides such as alachlor. Notes/Explanations: NPs: Nanoparticles CoFe2O4: Cobalt Ferrite In addition to degrading organic pollutants, green photocatalyst
Green_photocatalyst
Chemical element with atomic number 5 (B)
July 2025. Bonvini P, Zorzi E, Basso G, Rosolen A (2007). "Bortezomib-mediated 26S proteasome inhibition causes cell-cycle arrest and induces apoptosis
Boron
Classification of membrane proteins including ion channels
Acyl-CoA Thioesterase (AcoT) Family 4.D.1 The Putative Vectorial Glycosyl Polymerization (VGP) Family 4.D.2 The Glycosyl Transferase 2 (GT2) Family 4.D.3 The
Transporter Classification Database
Transporter_Classification_Database
Suspension of gold nanoparticles in a liquid
tissues or cells, in order to improve and target drug delivery. Nanoparticle-mediated drug delivery is feasible only if the drug distribution is otherwise inadequate
Colloidal_gold
Chemical element with atomic number 52 (Te)
characteristic and often dramatic darkening of cells. In yeast, this reduction is mediated by the sulfate assimilation pathway. Tellurium accumulation seems to account
Tellurium
Chemical element with atomic number 30 (Zn)
antimony, bismuth, gold, iron, lead, mercury, silver, tin, magnesium, cobalt, nickel, tellurium, and sodium. Although neither zinc nor zirconium is ferromagnetic
Zinc
Poisoning caused by lead in the body
when it is found to be high, for example, in drinking water. As a more radical solution, entire towns located near former lead mines have been bought
Lead_poisoning
nanoparticles can also be controlled with small deviation by using a stepwise seed-mediated growth procedure as outlined by Bigall et al. (2008). The size of nanoparticles
Platinum_nanoparticle
Methods to make single-atom-thick carbon sheets
nanocomposite hydrogels of poly(N-isopropylacrylamide) prepared by frontal polymerization". Journal of Materials Chemistry. 21 (24): 8727. doi:10.1039/C1JM11076D
Graphene production techniques
Graphene_production_techniques
distance communication, storage and production of energy, modern medicine, polymerization and information technology. Italians also contributed in theorizing
List of Italian inventions and discoveries
List_of_Italian_inventions_and_discoveries
COBALT MEDIATED-RADICAL-POLYMERIZATION
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COBALT MEDIATED-RADICAL-POLYMERIZATION
COBALT MEDIATED-RADICAL-POLYMERIZATION