Average molecular weights and distribution
Average molar masses

Article REF: A3060 V2

Average molecular weights and distribution
Average molar masses

Author : James LESEC

Publication date: February 10, 1996 | Lire en français

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1. Average molecular weights and distribution

1.1 Definition of average sizes

1.1.1 Average number

The molar massMof a macromolecule is equal to the product of the mass M ₀ of the elementary unit and the degree of polymerization DP :

M = M ₀ DP

When the polymer sample is polymolecular, it is characterized by its number-average degree of polymerization...

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Fractionation of macromolecular samples

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References

(1) - GRUBISIC (Z.), REMPP (P.), BENOIT (H.) - J. Polym. Sci., - part B, 5, p. 753, (1967).
(2) - OUANO (A.C.), KAYE (W.) - J. Polym. Sci., A1, 12, - p. 1151, (1974).
(3)...

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