分析测试百科网 认证会员,请放心拨打!
诚信认证:
工商注册信息已核实!安捷伦中国在2019年卓越职场Great Place to Work®评选活动中金榜题名,荣膺大中华区最佳职场™,且位列前五,以及大中华区女性最佳职场™。点击了解更多
领域: | 日用化学品,临床生物化学/分子生物学,其他 | ||
样品: | 溴苯乙烯 | 项目: | 通过 GPC 三重检测分析溴苯乙烯 |
参考: | - |
方案文件名 | 下载 |
---|---|
使用 390-LC 多检测器套件 (MDS),通过 GPC 三重检测分析溴苯乙烯 |
下载此篇方案 |
The structure of many common types of polymer may be modified by either postpolymerization reaction or by the use of modified monomers, producing materials with new and novel properties. Understanding and assessing the effect of these modified structures on the behavior of polymers in various applications is crucial to developing novel uses for such materials. Polystyrene is one of the most commonly seen polymers, used primarily for the manufacture of packing materials. Modified forms of polystyrene may be produced by the use of novel styrene monomers. Gel permeation chromatography (GPC) is a well-known technique for assessing the molecular weight distribution of polymers, a property that influences many physical characteristics. Importantly, increasing the sophistication of the GPC experiment by the use of additional detectors allows the structure and solution properties of polymers to be assessed, of interest when studying the affect of structural modifications on a polymer. Triple detection employing a light scattering detector and a viscometer in combination with a refractive index detector may be used to determine accurate molecular weights for polymers for which narrow standards are not available, and to assess their solvation properties. This application note describes the analysis of a sample of polystyrene and a modified polybromostyrene material by triple detection.
扫描下方二维码,关注“安捷伦视界”微信公众号,获取更多解决方案资讯。