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BS ISO 21561-1:2015

Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR-<sup>1</sup>H-NMR and IR with cast-film method

standard by British Standard / International Organization for Standardization , 07/31/2015

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Full Description

BS ISO 21561-1:2015 specifies procedures for the quantitative determination of the microstructure of the butadiene and the content of styrene 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 trans, cis and vinyl contents are expressed in mol % relative to the butadiene. These methods are applicable only for raw rubber.

NOTE 1 IR spectrometry can also give absolute values of microstructure by calibration with S-SBRs of known absolute microstructure obtained by 1H-NMR spectrometry.

NOTE 2 Only "vinyl", "trans" and "cis" are used in this part of ISO 21561. However, the expression of vinyl, trans and cis mean as follows in general:
  • vinyl: vinyl unit, vinyl bond, 1,2-unit, 1,2-bond, 1,2-vinyl-unit or 1,2-vinyl-bond;
  • trans: 1,4-trans unit, 1,4-trans bond, trans-1,4 unit or trans1,4 bond;
  • cis: 1,4-cis unit, 1,4-cis bond, cis-1,4 unit or cis-1,4 bond.

Cross References:
ISO 1407
ISO 1795
ISO/TR 9272


Replaces BS ISO 21561:2005+A1:2010 which remains current

All current amendments available at time of purchase are included with the purchase of this document.
 

Product Details

Published:
07/31/2015
ISBN(s):
9780580868351
Number of Pages:
26
File Size:
1 file , 3 MB
Same As:
ISO 21561-1:2015
Product Code(s):
30302223, 30302223, 30302223
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. BS ISO 21561-1:2015

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    Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR-<sup>1</sup>H-NMR and IR with cast-film method

    • Most Recent

  2. BS ISO 21561:2005+A1:2010


    Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR

    • Historical Version

  3. BS ISO 21561:2005


    Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR

    • Historical Version