SEC ABSOLUTE MOLAR-MASS DETECTION BY ONLINE MEMBRANE OSMOMETRY

Authors
LEHMANN U KOHLER W ALBRECHT W
Citation
U. Lehmann et al., SEC ABSOLUTE MOLAR-MASS DETECTION BY ONLINE MEMBRANE OSMOMETRY, Macromolecules, 29(9), 1996, pp. 3212-3215
Citations number
11
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
29
Issue
9
Year of publication
1996
Pages
3212 - 3215
Database
ISI
SICI code
0024-9297(1996)29:9<3212:SAMDBO>2.0.ZU;2-M
Abstract
A membrane osmometer with a short response time based on a previously developed concentric design with a capillary-shaped membrane has been applied as an online SEC detector for absolute molar mass detection in combination with a concentration detector. The flow cell volume is 12 .2 mu L, the response time approximately 15 s, and the molar mass cuto ff is below 5 kg/mol. The performance has been tested with polystyrene standards in toluene under realistic SEC conditions.