Molecular weight distributions of block copolymers of poly(isoprene:styrene) by gel permeation chromatography
1968; Elsevier BV; Volume: 4; Issue: 4 Linguagem: Inglês
10.1016/0014-3057(68)90064-5
ISSN1873-1945
AutoresD.N. Cramond, J. M. Hammond, J.R. Urwin,
Tópico(s)Thermal and Kinetic Analysis
ResumoAbstract Gel permeation chromatograms of block copolymers of cis 1:4 polyisoprene and polystyrene with narrow molecular weight and composition distributions have been examined by the normal - probability plot method. The parameters M w , M n and standard deviation σ have been evaluated and the results compared with M N obtained by high speed osmometry. Fractionation appears to be achieved according to chain length for a particular composition.
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