Standard Swedish standard · SS-ISO 21561-2:2016

Styrene-butadiene rubber (SBR) - Determination of the microstructure of solution-polymerized SBR - Part 2: FTIR with ATR method (ISO 21561-2:2016, IDT)

Status: Valid

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Standard Swedish standard · SS-ISO 21561-2:2016

Styrene-butadiene rubber (SBR) - Determination of the microstructure of solution-polymerized SBR - Part 2: FTIR with ATR method (ISO 21561-2:2016, IDT)
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Scope
This part of ISO 21561 specifies procedures for the quantitative determination of the microstructure of the butadiene and the content of styrene in solution-polymerized SBR (S-SBR) by Fourier Transform Infrared Spectrometry (FTIR) with Attenuated Total Reflection (ATR) method. The styrene content is expressed in mass % relative to the whole polymer. The vinyl, trans and cis contents are expressed in mol % relative to the butadiene content. This method is only applicable to raw rubbers.NOTE 1 Precision as shown in Annex A may not be obtained for S-SBRs containing polystyrene block or styrene content more than 45 mass %.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.

Subjects

Rubber (83.060)


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Standard Swedish standard · SS-ISO 21561-2:2016

Styrene-butadiene rubber (SBR) - Determination of the microstructure of solution-polymerized SBR - Part 2: FTIR with ATR method (ISO 21561-2:2016, IDT)
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Price: 875 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-8020257

Edition: 1

Approved: 4/28/2016

No of pages: 28

Replaces: SS-ISO 21561:2005 , SS-ISO 21561:2005/Amd 1:2010