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

Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (8): 1638.

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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. 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

Abstract

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

CLC Number:

O648

TrendMD:

DUAN Hong-Dong, HOU Wan-Guo, WU Yu-Min, HAN Shu-Hua, ZHU Wei-Qun. Atomic Absorption Study on the Crosslinking Densities Between Partially Hydrolyzed Polyacrylamide and Chromium(Ⅲ)[J]. Chem. J. Chinese Universities, 2002, 23(8): 1638.

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

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