Premium
The importance of accurate and precise molecular weight measurement in pulsed‐laser polymerization
Author(s) -
Davis Thomas P.,
Zammit Michael D.
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961110122
Subject(s) - calibration , detector , pulsed laser , size exclusion chromatography , mass spectrometry , calibration curve , materials science , laser , analytical chemistry (journal) , polymerization , work (physics) , molar mass distribution , desorption , polymer , chromatography , chemistry , optics , physics , thermodynamics , detection limit , organic chemistry , quantum mechanics , adsorption , composite material , enzyme
Molecular weight distributions generated by pulsed‐laser polymerization have been determined experimentally using multi‐detector size exclusion chromatography (SEC). The conditions for accurate and precise SEC have been defined. The importance of the inter‐detector delay (IDD) is stressed and two different methods of defining IDD are compared. In addition this work highlights the problems associated with the use of Mark‐Houwink constants in constructing a universal calibration curve. Some preliminary results obtained from matrix‐assisted‐laser‐desorption‐ionisation mass spectrometry are also presented.