Abstract 

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.


General information

  • Status :  Withdrawn
    Publication date : 2005-12
  • Edition : 1
    Number of pages : 15
  • :
    ISO/TC 45/SC 3
    Raw materials (including latex) for use in the rubber industry
  • 83.060
    Rubber

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