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Characterization of thermal diffusion in polymer solutions by thermal field-flow fractionation: Dependence on polymer and solvent parameters

โœ Scribed by Martin E. Schimpf; J. Calvin Giddings

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
934 KB
Volume
27
Category
Article
ISSN
0887-6266

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๐Ÿ“œ SIMILAR VOLUMES

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## Abstract Extending our earlier measurements of homopolymer thermal diffusion, we characterize here the thermal diffusion of nine copolymers in toluene by thermal fieldโ€flow fractionation (thermal FFF). The copolymers are organized into groups whose members differ in one major aspect only. These

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In this paper we demonstrate that the polydispersity p = M w / g N of narrow polymer fractions can be readily obtained by measuring band broadening and its velocity dependence in a thermal field-flow fractionation (thermal FFF) system. The thermal FFF method is shown to be more accurate than size ex