27Al NMR STUDY OF LINK POLYMERIZATION OF HPAM/AlCit SYSTEM

Chinese Journal of Magnetic Resonance ›› 2000, Vol. 17 ›› Issue (6): 489-493.

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²⁷Al NMR STUDY OF LINK POLYMERIZATION OF HPAM/AlCit SYSTEM

TANG Ya-lin¹, LI li-pu¹, HOU Ke-yue¹, LIN Mei-qin², LI Ming-yuan²

1. Institute of Chemistry, The Chinese Academy of Science, Beijing 100080;
2. Department of Chemical Industry, Petroleum University, Beijing 102200

Received:2000-09-08 Revised:2000-10-19 Published:2000-12-05 Online:2018-01-11

Abstract

Abstract: The results of ²⁷Al NMR investigation of structure and composition of Citrate complex of Aluminium by computer non-linear fit of pH dependence are reported here. ²⁷Al NMR study of copolymer of HPAM and AlCit at different concentration ratios of HPAM and AlCit shows that HPAM as ligand first attack aluminum coordinated with water. It can be deduced that there are three phases in the mixed solution of copolymer of HPAM and AlCit based on the study of spin-lattice relaxation time of linked polymer at different total concentrations of mixed solution.

Key words: ²⁷Al NMR, Spin-lattice relaxation time, AlCit, HPAM, Copolymer

CLC Number:

O482.53⁺2

TANG Ya-lin, LI li-pu, HOU Ke-yue, LIN Mei-qin, LI Ming-yuan. ²⁷Al NMR STUDY OF LINK POLYMERIZATION OF HPAM/AlCit SYSTEM[J]. Chinese Journal of Magnetic Resonance, 2000, 17(6): 489-493.

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²⁷Al NMR STUDY OF LINK POLYMERIZATION OF HPAM/AlCit SYSTEM

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