期刊论文

ADSORPTION PROPERTIES OF 2,4-D ACID ON THE COMPOSITE POROUS RESIN MODIFIED WITH o-AMINOPYRIDINE

中文

离子交换与吸附

1001-5493

2018

34

6

490-499

10.16026/j.cnki.iea.2018060490

国家自然科学基金(No.51678225) 黑茶金花湖南省重点实验室(2016TP1022).

本校为第一机构

将氯球中-CH_2Cl转化为亚甲基交联桥,合成微孔丰富的超高交联树脂(命名为JX-06)。同时将氯球中50%的-CH_2Cl转化为亚甲基交联桥,50%的-CH_2Cl与邻氨基吡啶反应,合成既具有超高交联树脂孔结构和大孔树脂孔结构,又具有邻氨基吡啶功能基的复合孔结构树脂(命名为JX-11),对比研究JX-06树脂和JX-11树脂对2,4-D酸的吸附性能。实验结果表明,JX-06树脂吸附2,4-D酸的吸附量随pH值的变化规律与2,4-D酸分子比(2,4-D酸分子在2,4-D酸分子和2,4-D酸离子总和中所占的比)随pH值的变化规律相一致。JX-11树脂在pH值为3.23时对2,4-D酸的吸附量最大。疏水效应和阴离子交换的多重吸附导致JX-11树脂对2,4-D酸的吸附量大...

The -CH_2Cl groups in macroporous chloromethylated polystyrene resin were transformed to methylene bridges, and a hypercrosslinked resin with plentiful micropores (denoted JX-06) was achieved. 50% of the -CH_2Cl groups in macroporous chloromethylated polystyrene resin was transformed to methylene bridges, while the residual 50% of the -CH_2Cl groups was reacted with o-aminopyridine, and prepared o-aminopyridine modified resin with composite pore structure of hypercrosslinked resin and macroporous resin (denoted JX-11). Adsorption properties of 2,4-D acid on JX-11 was investigated using JX-06 a...