molecular weight

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  • noun

Synonyms for molecular weight

(chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule

References in periodicals archive ?
0], related primarily to the weight average molecular weight but the viscosity is also directly proportional to a power [epsilon] of the weight average molecular weight in the following form:
34) have investigated the non-isothermal crystallization behavior of PTT, but no attention has been paid to the influence of molecular weight on either the isothermal and the dynamic crystallization behavior of PTT, which is the major object in this work.
The manufacturers of plastics raw materials pay close attention to the molecular weight of the products they produce, and they capture this with a measurement of properties such as melt flow rate and intrinsic viscosity.
Both Epolene N-11P and N-14P are very low molecular weight polymers with average molecular weight values of 2,000 and 1,700 g/mol, respectively.
Based in Dallas, the company is a supplier of polyacetal and ultra-high molecular weight polyethylene and the only supplier with global production facilities providing local supply to all regions of the world.
Because of this, commercial plastics have polymers with a molecular weight distribution.
In the DPPH assay, the free radical scavenging activity of the high molecular weight chitosan (39 g of Trolox equivalent per ml) was higher than that of the low molecular weight chitosan (31.
1/2]), such as 1 h [29], Initiators that have been previously evaluated and published include diisopropyl peroxydicarbonate (ti/2[104[degrees]C] = 20 h), tm-butyl peroxypivalate, tert-amyl peroxypivalate, di-tm-butyl peroxide (DTBP), diakylperoxiydicarbonate, rm-butylperoxidy butyrate, and DEPDC [6], For this article, the effects of initiator amount, reaction time, mixing rate, and monomer fraction upon molecular weight, polydispersity, and amount of PVDF produced were evaluated using tert-butyl peroxyacetate (TPBA) as an initiator.
January 1 Low molecular weight heparin at preventive use faible18.
Molecular weight markers have applications in a large number of life science research fields.
The modifying co-monomer present in an amount of less than one weight percent, based on the weight of the TMHPTFE, the at least one TMHPTFE present in an amount of between 50 weight percent and 90 weight percent based on the total solids weight of all fluoropolymers in the composition; at least one melt-processible fluoropolymer (MPF) selected from perfluoroalkoxy (PFA) and methylflouroalkoxy (MFA), the MPF present in an amount of between 10 weight percent and 50 weight percent based on the total solids weight of all fluoropolymers in the composition, and having a melt flow index (MFI) greater than 10 g/10 min; and wherein the composition lacks low molecular weight polytetrafluoroethylene (LPTFE) having a number average molecular weight (Mn) of less than 500,000.
They are defined as having a mass-average molecular weight of less than 8000 and for which at least 60% of the total weight has a molecular mass less than 8000.
The humectant comprises a low molecular weight polyethylene glycol that is liquid at 20[degrees]C.
GPC/SEC is a central analytical technique for the analysis of proteins, polymers and macromolecules because of its ability to measure defining characteristics such as molecular weight, molecular weight distribution and molecular size.
Depending on the molecular weight, it is absorbed in different percentages and can be delivered to the different tissues and organs through a double peak of absorption.
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