CHARACTERIZATION OF FUNCTIONAL ALIPHATIC OLIGOAMIDES USING N-TRIFLUOROACETYLATION - II - SIZE-EXCLUSION CHROMATOGRAPHY

Authors
GIRARDON V TESSIER M MARECHAL E
Citation
V. Girardon et al., CHARACTERIZATION OF FUNCTIONAL ALIPHATIC OLIGOAMIDES USING N-TRIFLUOROACETYLATION - II - SIZE-EXCLUSION CHROMATOGRAPHY, European Polymer Journal, 34(9), 1998, pp. 1325-1330
Citations number
28
Categorie Soggetti
Polymer Sciences
Journal title
European Polymer Journal → ACNP
ISSN journal
00143057
Volume
34
Issue
9
Year of publication
1998
Pages
1325 - 1330
Database
ISI
SICI code
0014-3057(1998)34:9<1325:COFAOU>2.0.ZU;2-B
Abstract
The molar mass distribution of several functional oligoamides was stud ied by size exclusion chromatography in methylene chloride (CH2Cl2) at room temperature. Sample solubilization in CH2Cl2 was performed by de rivatization using trifluoroacetic anhydride. The internal calibration curves were easily obtained for the alpha,omega-diamino, alpha,omega- dicarboxy and alpha,omega-dihexyl oligoamides. The elution volume is i nfluenced by the methylene group number of monomeric unit and by the n ature of end groups. The molar masses determined by SEC were compared to the values obtained by chemical titration and by NMR analysis. (C) 1998 Elsevier Science Ltd. All rights reserved.