期刊文献+

聚芳砜低聚体及其双烯大分子单体的凝胶色谱

Gel Permeation Chromatography of Polysulfone Oligomers and Its Divinyl Macromolecular Monomer
全文增补中
导出
摘要 用未知样品的已知分子量组分峰位订定了聚芳砜低聚体及其双烯大分子单体的凝胶色谱标定曲线,研究了较宽分子量范围(10~2~10~6)聚苯乙烯的Mark-Houwink参数在乙醇-氯仿混合溶剂中的变化情况;在低分子量区,以标定曲线为媒介,根据[η]M对流体力学体积的普适性,从聚苯乙烯的Mark-Houwink参数得到了聚芳砜低聚体及其双烯大分子单体的Mark-Houwink方程。 Polysulfone oligomers and its divinyl macromolecular monomer were analyzed by gel permeation chromatography with coboiled solvent of chloroform and alcohol. Based on the separated peaks of compositions of low molecular weight oligomers, we obtained the calibration curves of polysulfone oligomers and its divinyl macromolecular monomer. The molecular weight data achieved are in accordance with the result determined by HPLC. In the wide range of molecular weight (650-~2300000), the intrinsic viscosity of narrow distribution polystyrene was determined, we found that Mark-Houwink constant a changed from 0.714 to 0.50 with the decrease of molecular weight. As the calibration parameter of [η]M is universal, we have obtained the Mark-Houwink expressions of polysulfore oligomers and its divinyl macromolecular monomer from the calibration curves.
作者 杨柏 林德厚
出处 《吉林大学自然科学学报》 CSCD 1990年第6期80-84,共5页 Acta Scientiarum Naturalium Universitatis Jilinensis
关键词 聚芳砜低聚体 双烯大分子 凝胶色谱 polysulfone oligomers, divinyl macromer, GPC, Mark-Houwink expression
  • 相关文献

参考文献1

  • 1董西侠,高分子材料科学与工程,1987年,3卷,28页

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部