Interaction modes between heavy metal ions and water-soluble polymers. 2. Spectroscopic and magnetic reexamination of the aqueous solutions of cupric ions and poly(acrylic acid)
Interaction modes between heavy metal ions and water-soluble polymers. 2. Spectroscopic and magnetic reexamination of the aqueous solutions of cupric ions and poly(acrylic acid)
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重金属离子与水溶性聚合物之间的相互作用模式。
DOI：
10.1021/ja00272a034
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发表时间：
1986
影响因子：
15
通讯作者：
M. Iwaizumi
中科院分区：
文献类型：
--
作者：
H. Yokoi;S. Kawata;M. Iwaizumi
用EPR、磁化率和光吸收光谱重新研究了水溶液中铜离子与聚丙烯酸(PAA)的相互作用。在pH=6时，溶液中存在CuPr2+，在pH=9时，Cu(OH)/sub2/逐渐形成，而不是Cu(OH)/sub2/的络合物消失。与聚乙烯醇一样，Cu2+与PAA的疏水作用不会沉淀，而是留在溶液中。
The interaction between cupric ions and poly(acrylic acid) (PAA) in aqueous solutions has been reexamined by EPR, magnetic susceptibility, and optical absorption. Cupric ions exist in solutions at pH 6, Cu(OH)/sub 2/ is gradually formed and complex species other than Cu(OH)/sub 2/ finally disappear at pH > 9. Cu(OH)/sub 2/ does not deposit but remains in solution by hydrophobic interaction with PAA, as in the case with poly(vinyl alcohol).