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聚丙烯接枝丙烯酸(PP-g-AA)对稀土离子吸附反应的研究
INVESTIGATION OF RARE EARTH ION SORPTION PROPERTIES OF PP-g-AA
【摘要】 通过聚丙烯电子束预辐照接枝丙烯酸得到PP g AA ,对PP g AA在弱酸性溶液中对稀土离子的吸附规律进行了考察 ,测定了PP g AA对 1 1种稀土离子的吸附速率常数k及吸附量Q ,观察了在PP g AA吸附稀土离子反应中 ,可能存在的“斜W效应”和“四分组效应” .
【Abstract】 Acrylic acid (AA) was grafted onto the powdered isotactic polypropylene ( i -PP) by using the electron-beam-induced preirradiation method.Eleven rare earth ions, including La 3+, Pr 3+, Nd 3+, Sm 3+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Er 3+, Tm 3+ and Yb 3+, were adsorbed on the graft product PP- g -AA. The properties of RE 3+ adsorbed were investigated in detail. These properties include the sorption quantity, the distribution ratio and the sorption rate. We found that “Inclined W Effect" and “Tetrad Effect” exist in the sorption behavior.
【Key words】 Polypropylene; Rare earth ions; Sorption; Inclined W effect; Tetrad effect;
- 【文献出处】 高分子学报 ,Acta Polymerica Sinica , 编辑部邮箱 ,2003年01期
- 【分类号】O647.3
- 【被引频次】9
- 【下载频次】335