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Tacticity

Index Tacticity

Tacticity (from Greek τακτικός taktikos "of or relating to arrangement or order") is the relative stereochemistry of adjacent chiral centers within a macromolecule. [1]

36 relations: Amorphous solid, École Polytechnique Fédérale de Lausanne, Bernoulli process, Carbon-13, Carbon-13 nuclear magnetic resonance, Chirality (chemistry), Crystallinity, Giulio Natta, Gutta-percha, International Union of Pure and Applied Chemistry, Kaminsky catalyst, Macromolecule, Melting, Melting point, Meso compound, Natta projection, Nuclear magnetic resonance, Polymer, Polypropylene, Polystyrene, Polyvinyl chloride, Powder diffraction, Proton, Pure and Applied Chemistry, Racemic mixture, Radical polymerization, Repeat unit, Secondary ion mass spectrometry, Solubility, Solvent, Stereochemistry, Substituent, Tetrahedral molecular geometry, University of California, Los Angeles, Vinyl polymer, Ziegler–Natta catalyst.

Amorphous solid

In condensed matter physics and materials science, an amorphous (from the Greek a, without, morphé, shape, form) or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal.

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École Polytechnique Fédérale de Lausanne

The École polytechnique fédérale de Lausanne (EPFL) is a research institute and university in Lausanne, Switzerland, that specializes in natural sciences and engineering.

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Bernoulli process

In probability and statistics, a Bernoulli process is a finite or infinite sequence of binary random variables, so it is a discrete-time stochastic process that takes only two values, canonically 0 and 1.

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Carbon-13

Carbon-13 (13C) is a natural, stable isotope of carbon with a nucleus containing six protons and seven neutrons.

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Carbon-13 nuclear magnetic resonance

Carbon-13 (C13)nuclear magnetic resonance (most commonly known as carbon-13 NMR or 13C NMR or sometimes simply referred to as carbon NMR) is the application of nuclear magnetic resonance (NMR) spectroscopy to carbon.

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Chirality (chemistry)

Chirality is a geometric property of some molecules and ions.

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Crystallinity

Crystallinity refers to the degree of structural order in a solid.

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Giulio Natta

Giulio Natta (26 February 1903 – 2 May 1979) was an Italian chemist and Nobel laureate.

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Gutta-percha

Gutta-percha refers to trees of the genus Palaquium in the family Sapotaceae and the rigid natural latex produced from the sap of these trees, particularly from Palaquium gutta.

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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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Kaminsky catalyst

A Kaminsky catalyst is a catalytic system for alkene polymerization.

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Macromolecule

A macromolecule is a very large molecule, such as protein, commonly created by the polymerization of smaller subunits (monomers).

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Melting

Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid.

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Melting point

The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid at atmospheric pressure.

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Meso compound

A meso compound or meso isomer is a stereoisomer with an identical or superimposable mirror image i.e., a non-optically active member of a set of stereoisomers, at least two of which are optically active.

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Natta projection

The Natta projection is a way to depict molecules with complete stereochemistry in two dimensions in a skeletal formula.

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Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a magnetic field absorb and re-emit electromagnetic radiation.

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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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Polypropylene

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

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Polystyrene

Polystyrene (PS) is a synthetic aromatic hydrocarbon polymer made from the monomer styrene.

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Polyvinyl chloride

Polyvinyl chloride, also known as polyvinyl or '''vinyl''', commonly abbreviated PVC, is the world's third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene.

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Powder diffraction

Powder diffraction is a scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization of materials.

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Proton

| magnetic_moment.

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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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Racemic mixture

In chemistry, a racemic mixture, or racemate, is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule.

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Radical polymerization

Free-radical polymerization (FRP) is a method of polymerization by which a polymer forms by the successive addition of free-radical building blocks.

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Repeat unit

A repeat unit or repeating unit is a part of a polymer whose repetition would produce the complete polymer chain (except for the end-groups) by linking the repeat units together successively along the chain, like the beads of a necklace.

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Secondary ion mass spectrometry

Secondary-ion mass spectrometry (SIMS) is a technique used to analyze the composition of solid surfaces and thin films by sputtering the surface of the specimen with a focused primary ion beam and collecting and analyzing ejected secondary ions.

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Solubility

Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.

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Solvent

A solvent (from the Latin solvō, "loosen, untie, solve") is a substance that dissolves a solute (a chemically distinct liquid, solid or gas), resulting in a solution.

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Stereochemistry

Stereochemistry, a subdiscipline of chemistry, involves the study of the relative spatial arrangement of atoms that form the structure of molecules and their manipulation.

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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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Tetrahedral molecular geometry

In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron.

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University of California, Los Angeles

The University of California, Los Angeles (UCLA) is a public research university in the Westwood district of Los Angeles, United States.

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Vinyl polymer

Vinyl polymers are a group of polymers derived from vinyl monomers.

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Ziegler–Natta catalyst

A Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins).

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Redirects here:

Atactic, Heterotactic, Isotactic, Stereoregularity, Syndiotactic, Syndiotactic macromolecule, Syndiotacticity.

References

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

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