676226-15-6Relevant articles and documents
METHOD OF PREPARING POLY(ALKYLENE CARBONATE) VIA COPOLYMERIZATION OF CARBON DIOXIDE/EPOXIDE IN THE PRESENCE OF NOVEL COMPLEX
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Paragraph 294 -297, (2014/10/04)
Provided is a method of preparing poly(alkylene carbonate) using a molecular weight regulator in a process of preparing a copolymer of carbon dioxide/epoxide using a novel complex synthesized from salen-type ligand including a quaternary ammonium salt as a catalyst. According to the present invention, even though the molecular weight regulator is used, an activity of the catalyst may be stably maintained, whereby the low molecular weight of poly(alkylene carbonate) having a desirable level may be effectively provided. In addition, it is expected that since the novel complex as the catalyst of the present invention has a simple structure as compared to the existing copolymerization catalyst, due to the economical preparation cost thereof, the novel complex may be effectively applied to a large-scale commercial process.
Transport of metal salts; encapsulation of anions in dinuclear Cu(II) complexes[Cu2L2SO4]SO4 and [Cu2L2BF4](BF4)3, where L = 2,2′-[1,6-hexanediylbis[(methylimino)methylene]]bis[4-tert-butyl-6- (phenylazomethinyl)phenol]
Plieger, Paul G.,Parsons, Simon,Parkin, Andy,Tasker, Peter A.
, p. 3928 - 3930 (2007/10/03)
Linking salicylaldimine units with a 2,9-diazadecane strap in high yields via a simple Mannich condensation generates a ligand which forms 2:2:1 assemblies of Cu:L:anion in which the anion is encapsulated in a tetra-cation cavity.