摘要
本文用薄层色谱成功地将微交联核-壳结构聚苯乙烯微粒中的少量线性PS分子与微交联组分相分离,用凝胶色谱法测得线性PS的分子量为104-105数量级;0.2-1.6×10-6g的点样量,薄层扫描吸收峰面积与样品量成良好的线性关系;可直接由峰面积计算线性PS分子的含量;结合微粒的表观粘度,对微粒的核-壳结构进行了定性分析。
Thin-layer chromatography(TLC) and GPC were used to analyze linear PS in the mi-crogel core/shell polystyrene microparticle. Linear PS was separated from crosslinking component by TLC, its molecular weight (MW) is 104-105 by GPC. The content of linear PS in the sample can be calculated directly with the area value of TLC scanning, when the weight of the sample was controlled under 1. 6× 10-6 g; Combining the MW and content of linear PS with apparent viscosity of the sample, structure of the particles was analyzed qualitatively.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第7期998-1001,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金资助课题.
关键词
核壳型微交联
聚苯乙烯
微粒
分析
Microgel core/shell polystyrene microparticle, Separation of linear PS, TLC, GPC, TLC scanning
