节点文献
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
Atomic Absorption Study on the Crosslinking Densities Between Partially Hydrolyzed Polyacrylamide and Chromium(Ⅲ)
【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 HPAM was 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 pH value of HPAM/Cr(Ⅲ) system was between 4 and 8, the crosslinking density increased with the increase of pH value. The crosslinking density also increased with the increase of temperature and the increase of salinity.
【关键词】 原子吸收法；
部分水解聚丙烯酰胺；
交联密度；
凝胶；
【Key words】 Atomic absorption method； Partially hydrolyzed polyacrylamide； Crosslinking density； Gel；
【Key words】 Atomic absorption method； Partially hydrolyzed polyacrylamide； Crosslinking density； Gel；
【基金】 国家自然科学基金 (批准号 :2 9873 0 2 6)资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2002年08期
- 【分类号】O657.3
- 【被引频次】4
- 【下载频次】154