molecular weight


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molecular weight

n.
The sum of the atomic weights of all the atoms in a molecule. Also called relative molecular mass.

molecular weight

n
(Chemistry) the former name for relative molecular mass

molec′ular weight′


n.
the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule. Abbr.: mol. wt.
[1875–80]

molecular weight

The sum of the atomic weights of the atoms contained in a molecule. For example, since the atomic weight of hydrogen is 1 and the atomic weight of oxygen is 16, the molecular weight of water (H2O) is 1 + 1 + 16, or 18.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.molecular weight - (chemistry) the sum of the relative atomic masses of the constituent atoms of a moleculemolecular weight - (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
mass - the property of a body that causes it to have weight in a gravitational field
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
Translations
References in periodicals archive ?
Substituting this most probable distribution into the following equation yields the ester-ester interchange weight average molecular weight distribution degree of polymerization.
This section includes: density, molecular weight and molecular weight distribution, crystallinity, thermal properties, mechanical properties, electrical properties, optical properties, surface properties, hardness and scratch resistance, abrasion resistance, friction, acoustic properties, degradation, biological behaviour, biocompatibility, wear, molecular properties, performance in service, permeability, and crosslinking.
There are many discussions about the relationship between isothermal crystallization behavior and molecular weight for poly(ethylene terephthalate) (4-7), polyethylene (8-17), poly(1.
The Epolene product line is divided into three major classes of low molecular weight polymers, including N types (normal [non-emulsifiable]), C types (coating) and E types (emulsifiable).
In addition, the prices of GUR ultra-high molecular weight polyethylene (UHMW-PE) and GHR high molecular weight polyethylene (VHMW-PE) will increase by EUR0.
Molecular weight is the sum of the atomic weights of the atoms comprising a molecule.
1% of commercial polysorbate 20, was mixed with 1% or 2% low molecular and high molecular weight chitosan samples as treatments.
Once the molecular weight is sufficiently high, PVDF is immiscible or essentially insoluble in carbon dioxide and it takes pressures greater than 1600 bar at temperatures between 130 and 215[degrees]C to dissolve PVDF [14, 21].
This contract is for the supply of pharmaceutical specialties: Low molecular weight heparin - parenteral nutrition peripherally.
The global molecular weight markers market comprises of DNA, Protein and RNA markers.
Whitford Corporation has been granted a patent for a fluoropolymer composition comprised of at least one high molecular weight polytetrafluoroethylene, which has been trace modified with a modifying co-monomer (TMHPTFE) and having a number average molecular weight (Mn) of at least 500,000 and a first melt temperature (Tm) of less than 342[degrees] C.

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