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Living polymerization

Index Living polymerization

In polymer chemistry, living polymerization is a form of chain growth polymerization where the ability of a growing polymer chain to terminate has been removed. [1]

79 relations: Alkali metal, Alpha-olefin, Anionic addition polymerization, Atom transfer radical polymerization, Barry Trost, Beta-Hydride elimination, Catalysis, Catalyst transfer polymerization, Catalytic chain transfer, Chain propagation, Chain termination, Chain transfer, Chain-growth polymerization, Chelation, Chirality (chemistry), Copolymer, Crystal structure, Cyclopentadienyl, Degree of polymerization, Dispersity, End-group, Gradient copolymer, Grignard reaction, Imine, Initiation (chemistry), International Union of Pure and Applied Chemistry, Ion, Isobutylene, IUPAC books, Journal of the American Chemical Society, Karl Ziegler, Kinetic chain length, Kumada coupling, Living anionic polymerization, Living cationic polymerization, Living free-radical polymerization, Macromolecules (journal), Metallocene, Methacrylate, Methylaluminoxane, Michael reaction, Michael Szwarc, Molar mass, Molecular mass, Monomer, Naphthalene, Nitroxide-mediated radical polymerization, Norbornene, Owen Webster, Oxidative addition, ..., Polyethylene, Polymer, Polymer chemistry, Polymerization, Polypropylene, Pure and Applied Chemistry, Radical (chemistry), Rate-determining step, Reaction rate, Reversible addition−fragmentation chain-transfer polymerization, Richard R. Schrock, Ring-opening metathesis polymerisation, Robert H. Grubbs, Self-healing material, Silyl enol ether, Sodium naphthalenide, Sonogashira coupling, Step-growth polymerization, Stereospecificity, Styrene, Substituent, Tebbe's reagent, TEMPO, Tetrahydrofuran, Transition metal, Transmetalation, Tungsten, Viscosity, 1,3-Bis(diphenylphosphino)propane. Expand index (29 more) »

Alkali metal

The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K),The symbols Na and K for sodium and potassium are derived from their Latin names, natrium and kalium; these are still the names for the elements in some languages, such as German and Russian.

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Alpha-olefin

Alpha-olefins (or α-olefins) are a family of organic compounds which are alkenes (also known as olefins) with a chemical formula CxH2x, distinguished by having a double bond at the primary or alpha (α) position.

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Anionic addition polymerization

Anionic addition polymerization is a form of chain-growth polymerization or addition polymerization that involves the polymerization of vinyl monomers with strong electronegative groups.

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Atom transfer radical polymerization

Atom transfer radical polymerization (ATRP) is an example of a reversible-deactivation radical polymerization.

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Barry Trost

Barry M. Trost (born June 13, 1941 in Philadelphia) is an American chemist, Tamaki Professor of Humanities and Sciences at Stanford University.

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Beta-Hydride elimination

β-Hydride elimination is a reaction in which an alkyl group bonded to a metal centre is converted into the corresponding metal-bonded hydride and an alkene.

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Catalysis

Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalysthttp://goldbook.iupac.org/C00876.html, which is not consumed in the catalyzed reaction and can continue to act repeatedly.

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Catalyst transfer polymerization

Catalyst transfer polymerization (CTP), or Catalyst Transfer Polycondensation, is a type of living chain-growth polymerization that is used for synthesizing conjugated polymers.

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Catalytic chain transfer

Catalytic chain transfer (CCT) is a process that can be incorporated into radical polymerization to obtain greater control over the resulting products.

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Chain propagation

Chain propagation (sometimes referred to as propagation) is a process in which a reactive intermediate is continuously regenerated during the course of a chemical chain reaction.

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Chain termination

Chain termination is any chemical reaction that ceases the formation of reactive intermediates in a chain propagation step in the course of a polymerization, effectively bringing it to a halt.

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Chain transfer

Chain transfer is a polymerization reaction by which the activity of a growing polymer chain is transferred to another molecule.

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Chain-growth polymerization

Chain-growth polymerization or chain polymerization (IUPAC recommended term) is a polymerization mechanism in which monomer molecules add onto the active site of a growing polymer chain one at a time.

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Chelation

Chelation is a type of bonding of ions and molecules to metal ions.

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Chirality (chemistry)

Chirality is a geometric property of some molecules and ions.

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Copolymer

When two or more different monomers unite together to polymerize, the product is called a copolymer and the process is called copolymerization.

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Crystal structure

In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.

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Cyclopentadienyl

Cyclopentadienyl can refer to.

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Degree of polymerization

The degree of polymerization, or DP, is the number of monomeric units in a macromolecule or polymer or oligomer molecule.

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Dispersity

A monodisperse, or uniform, polymer is composed of molecules of the same mass.

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End-group

End groups are an important aspect of polymer synthesis and characterization.

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Gradient copolymer

Copolymers are polymers that are synthesized with more than one kind of repeat unit (or monomer).

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Grignard reaction

The Grignard reaction (pronounced) is an organometallic chemical reaction in which alkyl, vinyl, or aryl-magnesium halides (Grignard reagents) add to a carbonyl group in an aldehyde or ketone.

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Imine

An imine is a functional group or chemical compound containing a carbon–nitrogen double bond.

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Initiation (chemistry)

Chain Initiation: A free radical reaction mechanism step that has no radical reactant (s) and give radical product (s).

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International Union of Pure and Applied Chemistry

The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations that represents chemists in individual countries.

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Ion

An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).

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Isobutylene

Isobutylene (or 2-methylpropene) is a hydrocarbon of industrial significance.

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IUPAC books

The International Union of Pure and Applied Chemistry publishes many books, which contain its complete list of definitions.

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Journal of the American Chemical Society

The Journal of the American Chemical Society (also known as JACS) is a weekly peer-reviewed scientific journal that was established in 1879 by the American Chemical Society.

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Karl Ziegler

Karl Waldemar Ziegler (November 26, 1898 – August 12, 1973) was a German chemist who won the Nobel Prize in Chemistry in 1963, with Giulio Natta, for work on polymers.

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Kinetic chain length

In polymer chemistry the kinetic chain length of a polymer, ν, is the average number of units called monomers added to a growing chain during chain-growth polymerization.

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Kumada coupling

In organic chemistry, the Kumada coupling is a type of cross coupling reaction, useful for generating carbon–carbon bonds by the reaction of a Grignard reagent and an organic halide.

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Living anionic polymerization

Living anionic polymerization is a living polymerization technique involving an anionic propagating species.

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Living cationic polymerization

Living cationic polymerization is a living polymerization technique involving cationic propagating species.

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Living free-radical polymerization

Living free radical polymerization is a type of living polymerization where the active polymer chain end is a free radical.

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Macromolecules (journal)

Macromolecules is a peer-reviewed scientific journal that has been published since 1968 by the American Chemical Society.

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Metallocene

A metallocene is a compound typically consisting of two cyclopentadienyl anions (abbreviated Cp) bound to a metal center (M) in the oxidation state II, with the resulting general formula (C5H5)2M.

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Methacrylate

Methacrylate refers to derivatives of methacrylic acid.

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Methylaluminoxane

Methylaluminoxane, commonly called MAO, is an organoaluminium compound with the approximate formula (Al(CH3)O)n.

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Michael reaction

The Michael reaction or Michael addition is the nucleophilic addition of a carbanion or another nucleophile to an α,β-unsaturated carbonyl compound.

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Michael Szwarc

Michael Szwarc (9 June 1909, Będzin, Poland – 4 August 2000, United States) was a British and American polymer chemist who discovered and studied ionic living polymerization.

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Molar mass

In chemistry, the molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance.

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Molecular mass

Relative Molecular mass or molecular weight is the mass of a molecule.

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Monomer

A monomer (mono-, "one" + -mer, "part") is a molecule that "can undergo polymerization thereby contributing constitutional units to the essential structure of a macromolecule".

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Naphthalene

Naphthalene is an organic compound with formula.

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Nitroxide-mediated radical polymerization

Nitroxide-mediated radical polymerization is a method of radical polymerization that makes use of an alkoxyamine initiator to generate polymers with well controlled stereochemistry and a very low polydispersity index.

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Norbornene

Norbornene or norbornylene or norcamphene is a bridged cyclic hydrocarbon.

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Owen Webster

Owen Wright Webster (March 25, 1929 – April 13, 2018) is a distinguished member of the organic and polymer chemistry communities.

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Oxidative addition

Oxidative addition and reductive elimination are two important and related classes of reactions in organometallic chemistry.

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Polyethylene

Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(ethylene)) is the most common plastic.

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Polymer

A polymer (Greek poly-, "many" + -mer, "part") is a large molecule, or macromolecule, composed of many repeated subunits.

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Polymer chemistry

Polymer chemistry is a chemistry subdiscipline that deals with the structures, chemical synthesis and properties of polymers, primarily synthetic polymers such as plastics and elastomers.

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Polymerization

In polymer chemistry, polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks.

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Polypropylene

Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications.

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Pure and Applied Chemistry

Pure and Applied Chemistry (abbreviated Pure Appl. Chem.) is the official journal for the International Union of Pure and Applied Chemistry (IUPAC).

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Radical (chemistry)

In chemistry, a radical (more precisely, a free radical) is an atom, molecule, or ion that has an unpaired valence electron.

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Rate-determining step

In chemical kinetics, the overall rate of a reaction is often approximately determined by the slowest step, known as the rate-determining step (RDS) or rate-limiting step.

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Reaction rate

The reaction rate or rate of reaction is the speed at which reactants are converted into products.

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Reversible addition−fragmentation chain-transfer polymerization

Reversible addition-fragmentation chain transfer or RAFT polymerization is one of several kinds of reversible-deactivation radical polymerization.

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Richard R. Schrock

Richard Royce Schrock (born January 4, 1945) is an American chemist and Nobel laureate recognized for his contributions to the olefin metathesis reaction used in organic chemistry.

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Ring-opening metathesis polymerisation

Ring-opening metathesis polymerization (ROMP) is a type of olefin metathesis chain-growth polymerization that produces industrially important products.

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Robert H. Grubbs

Robert Howard Grubbs (born February 27, 1942) is an American chemist and the Victor and Elizabeth Atkins Professor of Chemistry at the California Institute of Technology in Southern California.

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Self-healing material

Self-healing materials are artificial or synthetically-created substances that have the built-in ability to automatically repair damage to themselves without any external diagnosis of the problem or human intervention.

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Silyl enol ether

Silyl enol ethers in organic chemistry are a class of organic compounds that share a common functional group composed of an enolate bonded through its oxygen end to an organosilicon group.

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Sodium naphthalenide

Sodium naphthalenide, also known as sodium naphthalide, is an organic salt with the formula Na+C10H8−.

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Sonogashira coupling

The Sonogashira reaction is a cross-coupling reaction used in organic synthesis to form carbon–carbon bonds.

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Step-growth polymerization

Step-growth polymerization refers to a type of polymerization mechanism in which bi-functional or multifunctional monomers react to form first dimers, then trimers, longer oligomers and eventually long chain polymers.

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Stereospecificity

In chemistry, stereospecificity is the property of a reaction mechanism that leads to different stereoisomeric reaction products from different stereoisomeric reactants, or which operates on only one (or a subset) of the stereoisomers.

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Styrene

Styrene, also known as ethenylbenzene, vinylbenzene, and phenylethene, is an organic compound with the chemical formula C6H5CH.

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Substituent

In organic chemistry and biochemistry, a substituent is an atom or group of atoms which replaces one or more hydrogen atoms on the parent chain of a hydrocarbon, becoming a moiety of the resultant new molecule.

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Tebbe's reagent

The Tebbe reagent is the organometallic compound with the formula (C5H5)2TiCH2ClAl(CH3)2.

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TEMPO

(2,2,6,6-Tetramethylpiperidin-1-yl)oxyl or (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl, commonly known as TEMPO, is a chemical compound with the formula (CH2)3(CMe2)2NO.

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Tetrahydrofuran

Tetrahydrofuran (THF) is an organic compound with the formula (CH2)4O.

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Transition metal

In chemistry, the term transition metal (or transition element) has three possible meanings.

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Transmetalation

Transmetalation (alt. spelling: transmetallation) is a type of organometallic reaction that involves the transfer of ligands from one metal to another.

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Tungsten

Tungsten, or wolfram, is a chemical element with symbol W (referring to wolfram) and atomic number 74.

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Viscosity

The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.

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1,3-Bis(diphenylphosphino)propane

1,3-Bis(diphenylphosphino)propane (dppp) is an organophosphorus compound with the formula Ph2P(CH2)3PPh2.

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References

[1] https://en.wikipedia.org/wiki/Living_polymerization

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