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Recent developments in the gpc characterisation of polymeric materials
Author(s) -
Meehan Elizabeth,
McConville John A.,
Warner Frank P.
Publication year - 1991
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990260105
Subject(s) - polymer , polystyrene , materials science , calibration , particle size , particle size distribution , resolution (logic) , molar mass distribution , size exclusion chromatography , particle (ecology) , chemical engineering , composite material , chemistry , organic chemistry , mathematics , computer science , statistics , oceanography , enzyme , geology , artificial intelligence , engineering
Mixed gel GPC columns are specifically designed for the determination of polymer molecular weight distribution. The choice of column pore size distribution and particle size significantly affects resolution. Although optimum resolution is deirable, 5 μm particle size columns are not ideal for the analysis of polymers containing significant quantities of material above 1 million molecular weight as shear degradation of the polymer is likely to occur. Both narrow standard and broad standard methodolgies are suitable for the calibration of mixed gel GPC column systems. Using well‐characterised polydisperse polystyrene test probes, no difference in accuracy was found between the two procedures.