ISO 21561:2005 丁苯橡胶（SBR）.溶液聚合型SBR微观结构的测定
标准编号：ISO 21561:2005
中文名称：丁苯橡胶（SBR）.溶液聚合型SBR微观结构的测定
英文名称：Styrene-butadiene rubber (SBR) — Determination of the microstructure of solution-polymerized SBR
发布日期：2005-12
标准范围
ISO 21561:2005规定了通过1H-NMR光谱法作为绝对方法和通过IR光谱法作为相对方法定量测定溶液聚合SBR(S-SBR)中丁二烯单元的微观结构和苯乙烯单元的含量的程序。苯乙烯含量以相对于聚合物整体的质量%表示。1，4-反式、1，4-顺式和1，2-乙烯基含量以相对于丁二烯单元的摩尔%表示。
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.
标准预览图
