Polymer grafted alkali earth aluminate phosphor through coordination bond
申请人:Zhang Shufen
公开号:US20070221886A1
公开(公告)日:2007-09-27
The invention provides a kind of polymer grafted long afterglow phosphor which composed of alkali earth aluminate phosphor grafted by polymer through coordination bond and a method for producing the same. The method for producing a polymer grafted phosphor comprise two steps: the alkali earth aluminate activated by rare earth ions is coordinated with difunctional ligand to form a coordinated long afterglow phosphor; The coordinated long afterglow phosphor was dispersed in organic solvent at 40˜130° C., the ligand was initiated by initiator and could copolymerize with other polymerizable monomer to form the polymer grafted long afterglow phosphor. The formed phosphors have good water resistance and luminescent properties. They can be widely used in fields of luminescent coatings, paints and plastics.
US7504046B2
申请人:——
公开号:US7504046B2
公开(公告)日:2009-03-17
Friedländer Synthesis of Chiral Alkyl-Substituted 1,10-Phenanthrolines
作者:Serafino Gladiali、Giorgio Chelucci、Maria Salvatora Mudadu、Marc-Antoine Gastaut、Randolph P. Thummel
DOI:10.1021/jo0009806
日期:2001.1.1
The synthetic scope of the Friedländer condensation in the preparation of chiral alkyl-substituted 1,10-phenanthrolines has been investigated. A range of chiral [x,y-b]-cycloalkeno-condensed phenanthrolines has been prepared in one step from steroidal or other cyclic ketones from the chiral pool and 8-amino-7-quinolinecarbaldehyde (1) via base-catalyzed condensation. Phenanthroline derivatives are