ISO 21561:2005Withdrawn

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

Caoutchouc styrène-butadiène (SBR) — Détermination de la microstructure du SBR polymérisé en solution

This edition has been replaced by ISO 21561-1:2015.

Abstract / scope

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.

Life cycle

Amendments & corrigenda

ISO 21561:2005/Amd 1:2010WithdrawnStyrene-butadiene rubber (SBR) — Determination of the microstructure of solution-polymerized SBR — Amendment 1International Standard · Published 23 Nov 2010 · ISO/TC 45/SC 3

Replaced by

ISO 21561-1:2015PublishedStyrene-butadiene rubber (SBR) — Determination of the microstructure of solution-polymerized SBR — Part 1: 1H-NMR and IR with cast-film methodInternational Standard · Published 17 Jul 2015 · ISO/TC 45/SC 3 ISO 21561-2:2016WithdrawnStyrene-butadiene rubber (SBR) — Determination of the microstructure of solution-polymerized SBR — Part 2: FTIR with ATR methodInternational Standard · Published 8 Mar 2016 · ISO/TC 45/SC 3