scholarly journals Vanadium complexes derived from oxacalix[6]arenes: structural studies and use in the ring opening homo-/co-polymerization of ε-caprolactone/δ-valerolactone and ethylene polymerization

2021 ◽  
Author(s):  
Tian Xing ◽  
Timothy J. Prior ◽  
Mark R. J. Elsegood ◽  
Nina V. Semikolenova ◽  
Igor E. Soshnikov ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ethylene Polymerization ◽  
Vanadium Complexes ◽  
Structural Studies ◽  
Cyclic Esters

Oxacalix[6]arene vanadium complexes have been employed for the ROP of cyclic esters and ethylene polymerization.

scholarly journals Lithium calix[4]arenes: structural studies and use in the ring opening polymerization of cyclic esters

RSC Advances ◽  
2021 ◽  
Vol 11 (19) ◽  
pp. 11304-11317
Author(s):  
Orlando Santoro ◽  
Mark R. J. Elsegood ◽  
Simon J. Teat ◽  
Takehiko Yamato ◽  
Carl Redshaw
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Structural Studies ◽  
Arene Complexes ◽  
Cyclic Esters

Novel Li-calix[n]arene complexes (n = 3, 4) having (–S–), (–SO–), (–SO2–), (–CH2OCH2–) or (–CH2–) bridges have been synthesized and fully characterized. Their catalytic activity in the ring opening polymerization of lactones has been studied.

scholarly journals Titanium complexes bearing oxa- and azacalix[4, 6]arenes: structural studies and use in the ring opening homo-/co-polymerization of cyclic esters

2021 ◽  
Vol 50 (12) ◽  
pp. 4396-4407
Author(s):  
Tian Xing ◽  
Timothy J. Prior ◽  
Kai Chen ◽  
Carl Redshaw
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Structural Studies ◽  
Titanium Complexes ◽  
Cyclic Esters

Rare examples of titanium oxa- and aza-calixarenes are reported which are active for the ring opening polymerization (ROP) of ε-caprolactone, δ-valerolactone and rac-lactide.

A switchable dimeric yttrium complex and its three catalytic states in ring opening polymerization

2021 ◽  
Author(s):  
Shijie Deng ◽  
Paula L. Diaconescu
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Oxidation States ◽  
Cyclic Esters

A dimeric yttrium phenoxide complex can be oxidized in a stepwise fashion to access three oxidation states. The three states show different activity in the ring opening polymerization of cyclic esters and epoxides.

Novel chalcogenide vanadium complexes with β-diimine ligand: synthesis and structural studies

2019 ◽  
Vol 72 (10) ◽  
pp. 1661-1670 ◽  
Author(s):  
A. Yu. Konokhova ◽  
M. Yu. Afonin ◽  
T. S. Sukhikh ◽  
S. N. Konchenko
Keyword(s):  
Vanadium Complexes ◽  
Structural Studies ◽  
Diimine Ligand ◽  
Ligand Synthesis
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