Ring-opening polymerization of ɛ-caprolactone initiated by rare earth alkoxides and borohydrides: a comparative study

2006 ◽  
Vol 55 (10) ◽  
pp. 1132-1137 ◽  
Author(s):  
Isabelle Palard ◽  
Michèle Schappacher ◽  
Alain Soum ◽  
Sophie M Guillaume
Keyword(s):  
Rare Earth ◽  
Comparative Study ◽  
Ring Opening ◽  
Ring Opening Polymerization

Synthesis of amine-bridged bis(phenolate) rare-earth metal aryloxides and their catalytic performances for the ring-opening polymerization of l-lactic acid O-carboxyanhydride and l-lactide

2017 ◽  
Vol 46 (45) ◽  
pp. 15928-15938 ◽  
Author(s):  
Hao Ouyang ◽  
Kun Nie ◽  
Dan Yuan ◽  
Yingming Yao
Keyword(s):  
Lactic Acid ◽  
Rare Earth ◽  
Comparative Study ◽  
Reaction Kinetics ◽  
Rare Earth Metal ◽  
Ring Opening ◽  
Earth Metal ◽  
Ring Opening Polymerization ◽  
Catalytic Performances

Rare-earth metal aryloxides were found as efficient initiators for the ring-opening polymerization of l-lactic acid O-carboxyanhydride and l-lactide. A comparative study on catalyst activities and reaction kinetics were conducted.

Rare earth metal initiated ring-opening polymerization of lactones

2000 ◽  
Vol 21 (5) ◽  
pp. 195-212 ◽  
Author(s):  
Seema Agarwal ◽  
Christian Mast ◽  
Kurt Dehnicke ◽  
Andreas Greiner
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Ring Opening ◽  
Earth Metal ◽  
Ring Opening Polymerization

Synthesis of Rare Earth Catalyst LLa[N(TMS)2]•DME(L=3,5-But2-2-HO-C6H2CH-NH-C5H4N) and Catalytic Behavior for Polymerization of Rac-Lactide

2012 ◽  
Vol 184-185 ◽  
pp. 1302-1306
Author(s):  
Xi Zhu ◽  
Yao Rong Wang
Keyword(s):  
Rare Earth ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Molar Ratio ◽  
Elimination Reaction ◽  
Catalytic Behavior ◽  
Rare Earth Catalyst

A dianionic phenoxyamido ligand was the first to be used to stabilize organo-rare-earth mental amido complex. Amine elimination reaction of La[N(SiMe3)2]3(THF)2 with 3,5-But2-2-HO-C6H2CH-NH-C5H4N in a 1 : 1 molar-ratio gave the anionic phenoxyamido neodymium amide LLa[N(TMS)2]•DME (1) in a high isolated yield. Furthemore, the catalytic behavior of complex 1 for the ring-opening polymerization of rac-lactide was explored.

Rare-Earth Complexes with Multidentate Tethered Phenoxy-Amidinate Ligands: Synthesis, Structure, and Activity in Ring-Opening Polymerization of Lactide

2011 ◽  
Vol 30 (20) ◽  
pp. 5509-5523 ◽  
Author(s):  
Mikhail Sinenkov ◽  
Evgeny Kirillov ◽  
Thierry Roisnel ◽  
Georgy Fukin ◽  
Alexander Trifonov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Rare Earth Complexes ◽  
Structure And Activity

Rare-earth metal complexes as catalysts for ring-opening polymerization of cyclic esters

2019 ◽  
Vol 392 ◽  
pp. 83-145 ◽  
Author(s):  
Dmitry M. Lyubov ◽  
Aleksey O. Tolpygin ◽  
Alexander A. Trifonov
Keyword(s):  
Rare Earth ◽  
Metal Complexes ◽  
Rare Earth Metal ◽  
Ring Opening ◽  
Earth Metal ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Rare Earth Metal Complexes

scholarly journals Rare-earth metal complexes derived from the acids Ph2C(X)CO2H (X= OH, NH2): Structural and ring opening polymerization (ROP) studies

2021 ◽  
Vol 1224 ◽  
pp. 129083
Author(s):  
Jack Collins ◽  
Orlando Santoro ◽  
Timothy J. Prior ◽  
Kai Chen ◽  
Carl Redshaw
Keyword(s):  
Rare Earth ◽  
Metal Complexes ◽  
Rare Earth Metal ◽  
Ring Opening ◽  
Earth Metal ◽  
Ring Opening Polymerization ◽  
Rare Earth Metal Complexes
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