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Titolo:
Fractionation of functional polystyrenes, poly(ethylene oxide)s and poly(styrene)-b-poly(ethylene oxide) by liquid chromatography at the exclusion-adsorption transition point
Autore:
Baran, K; Laugier, S; Cramail, H;
Indirizzi:
Univ Bordeaux, ENSCPB, Lab Chim Polymeres Organ, UMR 5629, F-33402 Talence, France Univ Bordeaux Talence France F-33402 , UMR 5629, F-33402 Talence, France Univ Bordeaux, ENSCPB, Lab Modelisat Avancee Syst Therm & Ecoulements Re, F-33402 Talence, France Univ Bordeaux Talence France F-33402 lements Re, F-33402 Talence, France
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY B
fascicolo: 1, volume: 753, anno: 2001,
pagine: 139 - 149
SICI:
1387-2273(20010325)753:1<139:FOFPPO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-WEIGHT DISTRIBUTIONS; CRITICAL RANGE; BLOCK-COPOLYMERS; METHYL-METHACRYLATE; POLYMER BLENDS; MACROMOLECULES; SEPARATION; POLYACETALS; CHAIN; DECYL;
Keywords:
exclusion-adsorption transition point; polystyrenes; poly(ethylene oxide);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Cramail, H Univ Bordeaux, ENSCPB, Lab Chim Polymeres Organ, UMR 5629, 1 Ave Pey Berland,BP 108, F-33402 Talence, France Univ Bordeaux 1 Ave Pey Berland,BP 108 Talence France F-33402
Citazione:
K. Baran et al., "Fractionation of functional polystyrenes, poly(ethylene oxide)s and poly(styrene)-b-poly(ethylene oxide) by liquid chromatography at the exclusion-adsorption transition point", J CHROMAT B, 753(1), 2001, pp. 139-149

Abstract

The paper reports the fractionation of functional polystyrenes (PSs) and poly(ethylene oxide)s (PEOs) as well as their block copolymers, by liquid chromatography at the exclusion adsorption transition point (EATP-LC), also called "critical conditions" mode. In this specific elution mode (EATP-LC), the fractionation is only governed by the nature and the number of functions attached to the polymer backbone, independent of the molar mass distribution of the whole sample. Functional polystyrenes (alpha- and/or alpha,omega-alcohol-, acetal-, aldehyde- and acidic-PS) could be readily separated from nan-functional polystyrenes under various chromatographic conditions. The technique also allowed the fractionation of poly(ethylene oxide)s and PS-PEO block copolymers. In the latter cases, moderately polar columns (grafted silica) and water-based polar eluents were required to obtain a satisfactory fractionation. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 07:56:06