THE PREPARATION AND ION-EXCHANGE PROPERTIES OF ZIRCONIUM SULFOPHOSPHONATES

被引：113

作者：

YANG, CY

CLEARFIELD, A

机构：

[1] Texas A&M Univ, College Station,, TX, USA, Texas A&M Univ, College Station, TX, USA

来源：

REACTIVE POLYMERS | 1987年 / 5卷 / 01期

关键词：

CHEMICAL REACTIONS - Sulfonation - ION EXCHANGERS - Synthesis;

D O I：

10.1016/0167-6989(87)90161-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A number of layered zirconium phosphite arylphosphonate and zirconium phosphate arylphosphonate mixed derivatives have been prepared. These compounds were readily sulfonated in fuming sulfuric acid and the resultant sulfonates behaved as strong-acid ion exchangers. In the case where the aryl group bridged across layers, a non-swelling exchanger resulted, and these solids showed ion exclusion towards large complexes. In the exchanger in which the layers were not connected, large degrees of swelling, to the point of colloid formation, were observed. As a consequence, the rates of exchange were very high. The non-crosslinked exchanger showed increased selectivity for larger cations. In the case of coordination complexes the increased selectivity was remarkable and may stem from a combination of favorable electrostatic and steric factors.

引用

页码：13 / 21

页数：9

共 8 条

[1] CRYSTALLINE ZR(R-PO3)2 AND ZR(R-OPO3)2 COMPOUNDS (R=ORGANIC RADICAL) - NEW CLASS OF MATERIALS HAVING LAYERED STRUCTURE OF ZIRCONIUM-PHOSPHATE TYPE [J].