THE MOLECULAR WEIGHT DEPENDENCE OF THE SPREADING FACTOR OF SEC COLUMNS AND THE SURFACE STRUCTURE OF

• 作 者: 程镕时 薄淑琴
• 机 构: Changchun Institute of Applied Chemistry, Academia Sinica, Changchun.Department of Chemistry, Nanjin
• 出 处: Chinese Journal of Polymer Science
• 发表日期: 1986年02期
• 关键词: polystyrene SURFACE beads spreading packing narrow columns interior styrene poro

The molecular weight separation and column dispersion for a number of SEC columns packedwith various packing materials were calibrated simultaneously using narrow MWD polystyrene stan-dards as probe. The molecular weight dependence of the spreading factor is closely related to thesurface structure in the pore of packings.

The molecular weight separation and column dispersion for a number of SEC columns packed with various packing materials were calibrated simultaneously using narrow MWD polystyrene stan-dards as probe. The molecular weight dependence of the spreading factor is closely related to the surface structure in the pore of packings.