Ring-opening polymerization of various cyclic esters by Al complex catalysts containing a series of phenoxy-imine ligands: Effect of the imino substituents for the catalytic activity

2008 ◽  
Vol 292 (1-2) ◽  
pp. 67-75 ◽  
Author(s):  
Naruhito Iwasa ◽  
Michiya Fujiki ◽  
Kotohiro Nomura
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Imine Ligands

scholarly journals INSIGHTS into the structures adopted by titanocalix[6 and 8]arenes and their use in the ring opening polymerization of cyclic esters

2020 ◽  
Vol 49 (34) ◽  
pp. 11978-11996
Author(s):  
Orlando Santoro ◽  
Mark R. J. Elsegood ◽  
Elizabeth V. Bedwell ◽  
Jake A. Pryce ◽  
Carl Redshaw
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Structural Features ◽  
Ring Opening Polymerization ◽  
Cyclic Esters

Interaction of p-tert-butylcalix[n]arenes (n = 6, 8) with [TiX4] (X = F, Cl, Br, I) afforded 11 novel compounds with interesting structural features. The catalytic activity of these species in the ROP of cyclic esters was tested.

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.

Recent progress in the application of group 1, 2 & 13 metal complexes as catalysts for the ring opening polymerization of cyclic esters

2019 ◽  
Vol 6 (10) ◽  
pp. 2619-2652 ◽  
Author(s):  
Jiahao Gao ◽  
Dongzhi Zhu ◽  
Wenjuan Zhang ◽  
Gregory A. Solan ◽  
Yanping Ma ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Recent Progress ◽  
Ring Opening Polymerization ◽  
Aliphatic Polyesters ◽  
Cyclic Esters ◽  
Factors Influencing ◽  
Polymer Properties ◽  
Recent Developments ◽  
Group 1

This review focuses on recent developments concerned with the use of well-defined main group complexes as (pre-)catalysts for the ROP of cyclic esters to give aliphatic polyesters; factors influencing catalytic activity, selectivity and polymer properties are all discussed.

Yttrium Complexes Supported by Linked Bis(amide) Ligand: Synthesis, Structure, and Catalytic Activity in the Ring-Opening Polymerization of Cyclic Esters

2009 ◽  
Vol 48 (9) ◽  
pp. 4258-4266 ◽  
Author(s):  
Tatyana V. Mahrova ◽  
Georgy K. Fukin ◽  
Anton V. Cherkasov ◽  
Alexander A. Trifonov ◽  
Noureddine Ajellal ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Ligand Synthesis ◽  
Yttrium Complexes

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.

Organocalcium Compounds with Catalytic Activity for the Ring-Opening Polymerization of Lactones

2003 ◽  
Vol 2003 (18) ◽  
pp. 3432-3439 ◽  
Author(s):  
Matthias Westerhausen ◽  
Stefan Schneiderbauer ◽  
Alexander N. Kneifel ◽  
Yvonne Söltl ◽  
Peter Mayer ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization
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