Organocatalytic Ring‐Opening Alternating Copolymerization of Epoxides and Cyclic Anhydrides by a Simple Organobase/Urea Binary Catalyst

2021 ◽  
pp. 2100104
Author(s):  
Xingji Zhu ◽  
Rui Wang ◽  
Xinhui Kou ◽  
Fusheng Liu ◽  
Yong Shen
Keyword(s):  
Ring Opening ◽  
Cyclic Anhydrides ◽  
Binary Catalyst ◽  
Alternating Copolymerization

Lewis pairs for ring-opening alternating copolymerization of cyclic anhydrides and epoxides

2018 ◽  
Vol 20 (3) ◽  
pp. 641-648 ◽  
Author(s):  
He-Yuan Ji ◽  
Bin Wang ◽  
Li Pan ◽  
Yue-Sheng Li
Keyword(s):  
Ring Opening ◽  
Cyclic Anhydrides ◽  
Low Toxic ◽  
Alternating Copolymerization ◽  
Lewis Pairs

Simple and low-toxic Lewis pairs were introduced for ring-opening alternating copolymerization of anhydrides and epoxides to prepare diversified polyesters.

scholarly journals Organo-Catalyzed/Initiated Ring Opening Co-Polymerization of Cyclic Anhydrides and Epoxides: an Emerging Story

2021 ◽  
Author(s):  
Franck Le Bideau ◽  
Samuel Dagorne ◽  
Samir Messaoudi ◽  
Françoise Dumas ◽  
Gaël Printz ◽  
...  
Keyword(s):  
Ring Opening ◽  
Everyday Lives ◽  
Cyclic Anhydrides

Polyesters are omnipresent in our everyday lives and their synthesis via eco-friendly methods is becoming a major challenge today. The co-polymerization of cyclic anhydrides and epoxides was first reported by...

scholarly journals Ring-Opening Copolymerization of Cyclohexene Oxide and Cyclic Anhydrides Catalyzed by Bimetallic Scorpionate Zinc Catalysts

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1651
Author(s):  
Felipe de la Cruz-Martínez ◽  
Marc Martínez de Sarasa Buchaca ◽  
Almudena del Campo-Balguerías ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Mechanism ◽  
Catalytic System ◽  
Phthalic Anhydride ◽  
Ring Opening ◽  
High Selectivity ◽  
Zinc Complexes ◽  
Cyclohexene Oxide ◽  
Reaction Conditions ◽  
Cyclic Anhydrides

The catalytic activity and high selectivity reported by bimetallic heteroscorpionate acetate zinc complexes in ring-opening copolymerization (ROCOP) reactions involving CO2 as substrate encouraged us to expand their use as catalysts for ROCOP of cyclohexene oxide (CHO) and cyclic anhydrides. Among the catalysts tested for the ROCOP of CHO and phthalic anhydride at different reaction conditions, the most active catalytic system was the combination of complex 3 with bis(triphenylphosphine)iminium as cocatalyst in toluene at 80 °C. Once the optimal catalytic system was determined, the scope in terms of other cyclic anhydrides was broadened. The catalytic system was capable of copolymerizing selectively and efficiently CHO with phthalic, maleic, succinic and naphthalic anhydrides to afford the corresponding polyester materials. The polyesters obtained were characterized by spectroscopic, spectrometric, and calorimetric techniques. Finally, the reaction mechanism of the catalytic system was proposed based on stoichiometric reactions.

Ring-opening spontaneous alternating copolymerization of a dithiadiphosphetane disulfide with cyclic ethers

1983 ◽  
Vol 10 (11-12) ◽  
pp. 491-496 ◽  
Author(s):  
Shiro Kobayashi ◽  
Tak Yuen Chow ◽  
Takeo Saegusa
Keyword(s):  
Ring Opening ◽  
Cyclic Ethers ◽  
Alternating Copolymerization

Bio-based polyesters synthesized by ring-opening copolymerizations of eugenyl glycidyl ether and cyclic anhydrides using a binuclear [OSSO]CrCl complex

2020 ◽  
Vol 22 (17) ◽  
pp. 5742-5750
Author(s):  
Binyuan Liu ◽  
Junwu Chen ◽  
Ning Liu ◽  
Huining Ding ◽  
Xianmin Wu ◽  
...  
Keyword(s):  
Ring Opening ◽  
Glycidyl Ether ◽  
Cyclic Anhydrides

A series of bio-based polyesters are efficiently synthesized by ring-opening copolymerizations of eugenyl glycidyl ether and various cyclic anhydrides using a binuclear [OSSO]CrCl complex in conjuction with PPNCl.

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