
%0 Journal Article
%A Urwin, JR 
%A Girolamo, M 
%T Molecular weight distribution of block copolymers by gel permeation chromatography
%J Australian Journal of Chemistry
%D 1972/09/01
%V 25
%N 9
%P 1869-1875
%K 
%R https://doi.org/10.1071/CH9721869
%U https://www.publish.csiro.au/paper/CH9721869 
%X Molecular weight distributions for block copolymers of polystyrene and   polyisoprene have been determined by gel permeation chromatography for a series of well characterized polymers. Universal calibration curves from [&#951;]M against elution volume and by plots of unperturbed dimensions (ro2)½ against elution volume have been constructed and examined. Normal-probability curves have been used to calculate the heterogeneity ratio MW/MN and the results compared with values from light scattering measurements and from osmometry. 
