What is molecular weight?

  • (noun): (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule.
    Synonyms: relative molecular mass

Some articles on molecular weight, molecular weights, weight:

Leucocyte Common Antigen
... Leucocyte common antigen family is a group of high molecular weight glycoproteins uniquely expressed on the surface of all leukocytes and their ... Thymocytes express the lowest molecular weight form, B lymphocytes express the highest molecular weight form ...
Smart Rubber - Synthesis
... When you change the degree of the backbone branching and the molecular weight by changing the di- and triacids and also by end-capping before the condensation reaction some acid groups with 2-aminoethylimidazolidone ... of DETA and UDETA with the fatty acids give us the control to make the molecular weight different, the branching degrees, and the number of H-bonding moieties for each molecule ... when you synthesize with the highest molecular weight of materials and it also has a particularly long relaxation time ...
Mark–Houwink Equation - Applications
... Then the molecular weight and intrinsic viscosity relationship is defined ... Also, the molecular weights of two different polymers in a particular solvent can be related using the Mark–Houwink equation when the polymer-solvent systems have the same intrinsic viscosity ... known for polystyrene in toluene, polyethylene in toluene can be run in a GPC and the molecular weight of polyethylene can be found according to the polystyrene calibration curve via the above equation ...
Autoacceleration - Results
... reactions also allows radical chains to add monomer for longer time periods, raising the weight average molecular weight dramatically ... However, the number average molecular weight only increases slightly, leading to broadening of the molecular weight distribution (high polydispersity index, very polydispersed product) ...
Chain Transfer
... → PX + R'• Chain transfer reactions reduce the average molecular weight of the final polymer ... presence of monomer, chain transfer to monomer determines the theoretical maximum molecular weight that can be achieved by a given monomer ... Unless the solvent is chosen to be inert, very low molecular weight polymers (oligomers) can result ...

Famous quotes containing the word weight:

    Man is a masterpiece of creation if for no other reason than that, all the weight of evidence for determinism notwithstanding, he believes he has free will.
    —G.C. (Georg Christoph)