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论文类型：期刊论文

发表时间：2011-05-01

发表刊物：POLYMERS FOR ADVANCED TECHNOLOGIES

收录刊物：Scopus、SCIE、EI

卷号：22

期号：5

页面范围：488-494

ISSN号：1042-7147

关键字：functionalization of polymers; fluorescence; synthesis; dysprosium; polyaryletherketone

摘要：A series of novel dysprosium coordination polymers were synthesized using new high-Tg carboxyl-containing polyaryletherketones (PEKs) as macromolecular ligands and a small molecule, 1,10-phenanthroline, as co-ligand. The FTIR, WAXD, and UV-Vis results indicated that the dysprosium ions were coordinated simultaneously with carboxyl group of PEKs and 1,10-phenanthroline, and homogeneously distributed along the polymer backbone. These obtained dysprosium coordination polymers showed excellent film-formation properties. Moreover, all the dysprosium coordination polymers could exhibit the intense characteristic emission of dysprosium ions under UV excitation. Meanwhile, the emission intensity increased with increasing dysprosium ion content, and no obvious fluorescence quenching happened at the Dy3+ ion content up to 10.71 wt%, which was attributed to the very rigid structure of PEK and synergistic coordination effect of PEK and 1,10-phenanthroline. Copyright (C) 2009 John Wiley & Sons, Ltd.