ISO 21561:2005 specifies procedures for the quantitative determination of the microstructure of the butadiene units and the content of styrene units in solution-polymerized SBR (S-SBR) by 1H-NMR spectrometry as an absolute method and by IR spectrometry as a relative method. The styrene content is expressed in mass % relative to the whole polymer. The 1,4-trans, 1,4-cis and 1,2-vinyl contents are expressed in mol % relative to the butadiene units.
Status: WithdrawnPublication date: 2005-12
Edition: 1Number of pages: 15
Technical Committee: ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry
- ICS :
- 83.060 Rubber
ISO 21561:2005Stage: 95.99
Corrigenda / AmendmentsWithdrawn
ISO 21561:2005/Amd 1:2010
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