物理化学学报 >> 1998, Vol. 14 >> Issue (12): 1112-1115.doi: 10.3866/PKU.WHXB19981211

研究简报 上一篇    下一篇

两性纤维素接枝共聚物在膨润土上的吸附

谭业邦, 张黎明, 李卓美   

  1. 中山大学高分子研究所,广州 510275
  • 收稿日期:1997-12-16 修回日期:1998-04-06 发布日期:1998-12-15
  • 通讯作者: 李卓美

Adsorption of Amphoteric Cellulose Graft Copolymer on Bentonite

Tan Ye-Bang, Zhang Li Ming, Li Zhuo-Mei   

  1. Institute of Polymenr Science,Zhongshan University,Guangzhou 510275
  • Received:1997-12-16 Revised:1998-04-06 Published:1998-12-15
  • Contact: Li Zhuo-Mei

关键词: 两性聚合物, 彭润土, 吸附, 淀粉, 碘化镉法

Abstract:

The adsorption property of a new amphoteric graft copolymer of carboxymethyl cellulose with acrylamide and dimethylamminoethyl methacrylate(CGAD) on bentonite particles was studied by the method of CdI2-starch coloring. The amount of adsorption increased with the increase of time or CGAD concentration, but decreased with the increasing concentration of added NaCl or added hexadecyltrimethylammonium choride (HDTMAC). The amount of adsorption was also found to be dependent on temperature. i.e. decreasing with the increasing temperature. The adsorption heat H was calculated by the relationship of temperature with the amount of adsorption. The X-ray diffraction showed that interlayer adsorption occurred in the bentonite.

Key words: Amphoteric polymer, Bentonite, Adsorption, CdI2-starch method