Theory of multiple-detection size-exclusion chromatography of complex branched polymers - Archive ouverte HAL
Article Dans Une Revue Macromolecular Theory and Simulations Année : 2007

Theory of multiple-detection size-exclusion chromatography of complex branched polymers

Résumé

Size exclusion chromatography (SEC) separates complex branched polymers by hydrodynamic volume, rather than by molecular weight or branching characteristics. Equations relating the response of different types of detectors are derived including band broadening, by defining a distribution function N'(M,Vh), the number of chains with molecular weight M and hydrodynamic volume Vh. While the true molecular weight distribution of complex polymers cannot be determined by SEC whatever detector is used, the formalism enables multiple detection SEC data to be processed to both analyze the polymer sample and reveal mechanistic information about the polymer synthesis. The formalism also shows how the true weight- and number-average molecular weight, Mw and Mn, can be obtained from correct processing of the hydrodynamic volume distributions.
Fichier principal
Vignette du fichier
2007 Macromol Theory Simul accepted.pdf (1.65 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04081421 , version 1 (25-04-2023)

Identifiants

Citer

Marianne Gaborieau, Robert Gilbert, Angus Gray-Weale, Javier M Hernandez, Patrice Castignolles. Theory of multiple-detection size-exclusion chromatography of complex branched polymers. Macromolecular Theory and Simulations, 2007, 16 (1), pp.13-28. ⟨10.1002/mats.200600046⟩. ⟨hal-04081421⟩
5 Consultations
76 Téléchargements

Altmetric

Partager

More