多缩乙二醇二苯醚与甲醛缩聚合成酚醛型聚合物假冠醚的研究

SYNTHESIS OF NEW POLYMERIC PSEUDO CROWN ETHERS AND STUDY ON THEIR PROPERTIES

本文采用苯酚、多缩乙二醇二氯化物、多缩乙二醇等为起始原料,合成了九个多缩乙二醇二苯醚新单体,经甲醛聚合获得一系列聚合物假冠醚,并对它们的溶解性能、络合性能以及催化作用等进行研究。

A series of new polymeric pseudo crown ethers contained many oxyethylenes have been synthesized by polycondensation of polyethylenglycol diphenyl ethers which was prepared by phenol and chlorides of polyethylenglycol with formaldehyde in the formic acid and in the presence of inorganic acid. The new monomers and polymers have been determined by IR, UV,1H-NMR, MS and element analysis.The complexing capacity, enrichment efficiemcy for metallic ions and thermostability of the polymeric crown ethers have also been investigated. The results of the experiments indicated that all of the polymers can be used under 160℃ and that enrichment efficiemcy of the polymer-6 for K+,Pb2+,Ag+,Fe3+(10-6-10-4mmol/ml) is approximate to 100%. These polymeric false crown ethers can also be used in organic reactions as a phase transfer catalyst or absorption of NaBH4.