Reference number
ISO 21561:2005
© ISO 2024
ISO 21561:2005
Styrene-butadiene rubber (SBR) — Determination of the microstructure of solution-polymerized SBR
Edition 1
2005-12
Withdrawn
Withdrawn (Edition 1, 2005)

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     : Withdrawn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
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 15
  • Technical Committee :
    ISO/TC 45/SC 3
    ICS :
    83.060 
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