ISO 21561:2005

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

Publication date: Nov 18, 2005

95.99 Withdrawal of Standard Mar 8, 2016

General information

Current stage: 95.99 Effective date: Mar 8, 2016

Originator: ISO

Owner: ISO/TC 45/SC 3

Type: International Standard

ICS: 83.060

Languages: English

Buying

Status: Withdrawn

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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

NOW

WITHDRAWN
ISO 21561:2005
95.99 Withdrawal of Standard
Mar 8, 2016

CORRIGENDA / AMENDMENTS

WITHDRAWN
ISO 21561:2005/Amd 1:2010

REVISED BY

WITHDRAWN
ISO 21561-2:2016

PUBLISHED
ISO 21561-1:2015