Oxo-Bridged Bimetallic Group 4 Complexes Bearing Amine-Bis(benzotriazole phenolate) Derivatives as Bifunctional Catalysts for Ring-Opening Polymerization of Lactide and Copolymerization of Carbon Dioxide with Cyclohexene Oxide

2014 ◽  
Vol 33 (24) ◽  
pp. 7091-7100 ◽  
Author(s):  
Ching-Kai Su ◽  
Hui-Ju Chuang ◽  
Chen-Yu Li ◽  
Chun-Yue Yu ◽  
Bao-Tsan Ko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Bifunctional Catalysts ◽  
Cyclohexene Oxide ◽  
Group 4

NSSN-Type Group 4 Metal Complexes in the Ring-Opening Polymerization of l-Lactide

2021 ◽  
Author(s):  
Salvatore Impemba ◽  
Giuseppina Roviello ◽  
Stefano Milione ◽  
Carmine Capacchione
Keyword(s):  
Metal Complexes ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Type Group ◽  
Group 4 ◽  
Group 4 Metal

Alternating Ring-Opening Polymerization of Cyclohexene Oxide and Anhydrides: Effect of Catalyst, Cocatalyst, and Anhydride Structure

2012 ◽  
Vol 45 (4) ◽  
pp. 1770-1776 ◽  
Author(s):  
Elham Hosseini Nejad ◽  
Carlo G. W. van Melis ◽  
Tim J. Vermeer ◽  
Cor E. Koning ◽  
Rob Duchateau
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclohexene Oxide

Ring-opening polymerization of ε-caprolactone and cyclohexene oxide initiated by aluminum β-ketoamino complexes: steric and electronic effect of 3-position substituents of the ligands

2008 ◽  
Vol 16 (5) ◽  
pp. 441-445 ◽  
Author(s):  
Binyuan Liu ◽  
Haiqing Li ◽  
Chang-Sik Ha ◽  
Il Kim ◽  
Weidong Yan
Keyword(s):  
Ring Opening ◽  
Electronic Effect ◽  
Ring Opening Polymerization ◽  
Cyclohexene Oxide

Enzymatic ring opening polymerization of ω-pentadecalactone using supercritical carbon dioxide

2017 ◽  
Vol 119 ◽  
pp. 221-228 ◽  
Author(s):  
André E. Polloni ◽  
Josamaique G. Veneral ◽  
Evertan A. Rebelatto ◽  
Débora de Oliveira ◽  
J. Vladimir Oliveira ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Supercritical Carbon

scholarly journals Tunable and Recyclable Polyesters from CO2 and Butadiene

2021 ◽  
Author(s):  
Rachel Rapagnani ◽  
Rachel Dunscomb ◽  
Alexandra Fresh ◽  
Ian Tonks
Keyword(s):  
Carbon Dioxide ◽  
Ring Opening ◽  
High Energy ◽  
Ring Opening Polymerization ◽  
Chemical Recycling ◽  
Alternate Route ◽  
Ceiling Temperature ◽  
Chemical Feedstock

Carbon dioxide is inexpensive and abundant, and its prevalence as waste makes it attractive as a sustainable chemical feedstock. Although there are examples of copolymerizations of CO2 with high-energy monomers, the direct copolymerization of CO2 with olefins has not been reported. Herein, an alternate route to tunable, recyclable polyesters derived from CO2 and butadiene via an intermediary lactone, 3-ethyl-6-vinyltetrahydro-2H-pyran-2-one, is described. Catalytic ring-opening polymerization of the lactone by 1,5,7-triazabicyclo[4.4.0]dec-5-ene yields polyesters with molar masses up to 13.6 kg/mol and pendent vinyl sidechains that can undergo post-polymerization functionalization. The polymer has a low ceiling temperature of 138 ºC, allowing for facile chemical recycling. These results mark the first example of a well-defined polyester derived solely from CO2 and olefins, expanding access to new feedstocks that were once considered unfeasible.

Chromium Amino-bis(phenolate) Complexes as Catalysts for Ring-Opening Polymerization of Cyclohexene Oxide

2019 ◽  
Vol 52 (19) ◽  
pp. 7403-7412 ◽  
Author(s):  
Kenson Ambrose ◽  
Jennifer N. Murphy ◽  
Christopher M. Kozak
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclohexene Oxide

scholarly journals Polynuclear alkoxy–zinc complexes of bowl-shaped macrocycles and their use in the copolymerisation of cyclohexene oxide and CO2

2019 ◽  
Vol 48 (15) ◽  
pp. 4887-4893 ◽  
Author(s):  
James R. Pankhurst ◽  
Shyeni Paul ◽  
Yunqing Zhu ◽  
Charlotte K. Williams ◽  
Jason B. Love
Keyword(s):  
Carbon Dioxide ◽  
Ring Opening ◽  
Zinc Complexes ◽  
Cyclohexene Oxide

Tri- and tetranuclear macrocyclic zinc alkoxides act as catalysts for the ring-opening polymerisation of epoxides and carbon dioxide.

Anionic ring-opening polymerization of ε-caprolactone in supercritical carbon dioxide: parameters influencing the reactivity

2004 ◽  
Vol 28 (2-3) ◽  
pp. 249-261 ◽  
Author(s):  
Vincent Bergeot ◽  
Thierry Tassaing ◽  
Marcel Besnard ◽  
François Cansell ◽  
Anne-Françoise Mingotaud
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Anionic Ring ◽  
Supercritical Carbon
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