高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1638.

• 研究简报 • 上一篇    

原子吸收法研究部分水解聚丙烯酰胺/Cr(Ⅲ)凝胶的交联密度

段洪东1, 侯万国2, 武玉民2, 韩书华2, 朱维群2   

  1. 1. 山东轻工业学院化工系, 济南 250100;
    2. 山东大学胶体与界面化学教育部重点实验室, 济南 250100
  • 收稿日期:2001-07-27 出版日期:2002-08-24 发布日期:2002-08-24
  • 通讯作者: wghou@sdu.edu.cn
  • 作者简介:侯万国(1964年出生),男,教授,博士生导师,从事胶体与聚合物方面的研究.E-mail:wghou@sdu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29873026)资助

Atomic Absorption Study on the Crosslinking Densities Between Partially Hydrolyzed Polyacrylamide and Chromium(Ⅲ)

DUAN Hong-Dong1, HOU Wan-Guo2, WU Yu-Min2, HAN Shu-Hua2, ZHU Wei-Qun2   

  1. 1. Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100, China;
    2. Key Laboratory for Colloid and Interface Chemistry of Education Ministry, S hand ong University, J inan 250100, China
  • Received:2001-07-27 Online:2002-08-24 Published:2002-08-24

关键词: 原子吸收法, 部分水解聚丙烯酰胺, 交联密度, 凝胶

Abstract: In this paper the crosslinking reaction between partially hydrolyzed Polyacrylamide (HPAM) with ultrahigh molecular weight and chromium (Ⅲ) was investigated by atomic absorption method. The results showed that when the concentration of HPAMwas fixed, the crosslinking density decreased with the increase of n(COO-)/ n. When the amount of Cr(Ⅲ) was fixed, the crosslinking density increased with the increase of n(COO-)/ n. When the initial pHvalue of HPAM/Cr(Ⅲ) system was between 4 and 8, the crosslinking density increased with the increase of pHvalue. The crosslinking density also increased with the increase of temperature and the increase of salinity.

Key words: Atomic absorption method, Partially hydrolyzed polyacrylamide, Crosslinking density, Gel

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