Lewis Acid-Assisted Anionic Ring-Opening Polymerization of Epoxide by the Aluminum Complexes of Porphyrin, Phthalocyanine, Tetraazaannulene, and Schiff Base as Initiators

1994 ◽  
Vol 27 (8) ◽  
pp. 2013-2018 ◽  
Author(s):  
Hiroshi Sugimoto ◽  
Chikara Kawamura ◽  
Masakatsu Kuroki ◽  
Takuzo Aida ◽  
Shohei Inoue
Keyword(s):  
Schiff Base ◽  
Lewis Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Aluminum Complexes ◽  
Anionic Ring ◽  
Porphyrin Phthalocyanine

Improvement in aluminum complexes bearing a Schiff base in ring-opening polymerization of ε-caprolactone: the synergy of the N,S-Schiff base in a five-membered ring aluminum system

2018 ◽  
Vol 47 (43) ◽  
pp. 15565-15573 ◽  
Author(s):  
Ting-Wei Huang ◽  
Rou-Rong Su ◽  
Yi-Chen Lin ◽  
Hsin-Yu Lai ◽  
Chien-Yi Yang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Membered Ring ◽  
Schiff Base Ligands ◽  
System P ◽  
Aluminum Complexes

A series of five-membered ring aluminum complexes bearing thiol-Schiff base ligands were synthesized, and their application in the ring-opening polymerization of ε-caprolactone (CL) was investigated.

Comparative Study of Aluminum Complexes Bearing N,O- and N,S-Schiff Base in Ring-Opening Polymerization of ε-Caprolactone and l-Lactide

2015 ◽  
Vol 54 (23) ◽  
pp. 11292-11298 ◽  
Author(s):  
Meng-Chih Chang ◽  
Wei-Yi Lu ◽  
Heng-Yi Chang ◽  
Yi-Chun Lai ◽  
Michael Y. Chiang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Comparative Study ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Aluminum Complexes

scholarly journals Investigation of the dinuclear effect of aluminum complexes in the ring-opening polymerization of ε-caprolactone

RSC Advances ◽  
2017 ◽  
Vol 7 (31) ◽  
pp. 18851-18860 ◽  
Author(s):  
Chiao-Yin Hsu ◽  
Hsi-Ching Tseng ◽  
Jaya Kishore Vandavasi ◽  
Wei-Yi Lu ◽  
Li-Fang Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Schiff Base Ligands ◽  
Aluminum Complexes ◽  
Salen Ligands

Al complexes bearing hydrazine-bridging Schiff base ligands showed the best catalytic activity, approximately 3- to 11-fold higher than that of dinuclear Al complexes bearing Salen ligands and mononuclear Al complexes bearing Schiff base ligands.

scholarly journals Phosphazene/triisobutylaluminum-promoted anionic ring-opening polymerization of 1,2-epoxybutane initiated by secondary carbamates

2017 ◽  
Vol 8 (27) ◽  
pp. 4005-4013 ◽  
Author(s):  
L. Hassouna ◽  
N. Illy ◽  
P. Guégan
Keyword(s):  
Lewis Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Anionic Ring

The deprotonation of secondary carbamates by tBuP2 in the presence of a Lewis acid allowed initiating the polymerization of 1,2-epoxybutane.

scholarly journals Turning on ROP activity in a bimetallic Co/Zn complex supported by a [2+2] Schiff-base macrocycle

2019 ◽  
Vol 55 (75) ◽  
pp. 11279-11282 ◽  
Author(s):  
Kuiyuan Wang ◽  
Timothy J. Prior ◽  
Carl Redshaw
Keyword(s):  
Schiff Base ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Bimetallic Complexes

Homo-dinuclear Co or Zn complexes derived from a [2+2] Schiff-base macrocycle revealed near inactivity for the ring opening polymerization of δ-valerolactone and ε-caprolactone, whereas hetero-bimetallic complexes were efficient catalysts.

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