scholarly journals Formation of epoxide-amine oligo-adducts as OH-functionalized initiators for the ring-opening polymerization of ε-caprolactone

2010 ◽  
Vol 6 ◽  
pp. 938-944 ◽  
Author(s):  
Julia Theis ◽  
Helmut Ritter
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Diglycidyl Ether ◽  
Transfer Hydrogenation ◽  
Polymerization Reaction ◽  
One Pot ◽  
Heterogeneous Catalytic ◽  
Addition Polymerization ◽  
Catalytic Transfer ◽  
Hydroxy Groups

Epoxide-amine oligo-adducts were synthesized via a one-pot microwave assisted heterogeneous catalytic transfer hydrogenation. Accordingly, 4-nitroanisole was reduced under microwave conditions to give 4-aminoanisole which reacted immediately with the diglycidyl ether of bisphenol A in an addition polymerization reaction to yield oligo(amino alcohol)s. The hydroxy groups of the new formed oligomers were used as the initiator for the ring-opening polymerization of ε-caprolactone to produce a graft copolymer.

scholarly journals Thermal and Electrochemical Properties of Solid Polymer Electrolytes Prepared via Lithium Salt-Catalyzed Epoxide Ring Opening Polymerization

2021 ◽  
Vol 11 (4) ◽  
pp. 1561
Author(s):  
Gabrielle Foran ◽  
Nina Verdier ◽  
David Lepage ◽  
Arnaud Prébé ◽  
David Aymé-Perrot ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Polymer Electrolytes ◽  
Ring Opening ◽  
Lithium Salt ◽  
Ring Opening Polymerization ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Polymerization Reaction ◽  
Epoxide Ring ◽  
Epoxide Ring Opening

Solid polymer electrolytes have been widely proposed for use in all solid-state lithium batteries. Advantages of polymer electrolytes over liquid and ceramic electrolytes include their flexibility, tunability and easy processability. An additional benefit of using some types of polymers for electrolytes is that they can be processed without the use of solvents. An example of polymers that are compatible with solvent-free processing is epoxide-containing precursors that can form films via the lithium salt-catalyzed epoxide ring opening polymerization reaction. Many polymers with epoxide functional groups are liquid under ambient conditions and can be used to directly dissolve lithium salts, allowing the reaction to be performed in a single reaction vessel under mild conditions. The existence of a variety of epoxide-containing polymers opens the possibility for significant customization of the resultant films. This review discusses several varieties of epoxide-based polymer electrolytes (polyethylene, silicone-based, amine and plasticizer-containing) and to compare them based on their thermal and electrochemical properties.

Influence of metal oxide and heteropoly tungustate location in mesoporous silica towards catalytic transfer hydrogenation of furfural to γ-valerolactone

2021 ◽  
Author(s):  
Bolla Srinivasarao ◽  
Yogita Y ◽  
Dhana Lakshmi Darsi ◽  
Krishna Kumari Pamula ◽  
N. Lingaiah
Keyword(s):  
Mesoporous Silica ◽  
Metal Oxide ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
One Pot ◽  
Catalytic Transfer

One pot conversion of furfural to -valerolactone by transfer hydrogenation has been achieved over bifunctional Zr and TPA located in mesoporous silica catalysts. Different catalysts with TPA and ZrO2 located...

One-pot synthesis of PLA-b-PHEA via sequential ROP and RAFT polymerizations

2017 ◽  
Vol 8 (39) ◽  
pp. 6086-6098 ◽  
Author(s):  
Ilknur Yildirim ◽  
Pelin Sungur ◽  
Anna C. Crecelius-Vitz ◽  
Turgay Yildirim ◽  
Diana Kalden ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ring Opening ◽  
Raft Polymerization ◽  
Ring Opening Polymerization ◽  
One Pot ◽  
One Pot Synthesis

A block copolymer library of polylactide and poly(2-hydroxyethyl acrylate) was prepared via sequential ring opening polymerization and RAFT polymerization in a one-pot approach.

scholarly journals Use of pyrazoles as ligands greatly enhances the catalytic activity of titanium iso-propoxide for the ring-opening polymerization of l-lactide: a cooperation effect

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 40690-40696
Author(s):  
Tzu-Fang Wang ◽  
Someswara Rao Kosuru ◽  
Shu-Chun Yu ◽  
Yung-Chi Chang ◽  
Hsin-Yu Lai ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
One Pot

Using TiOiPr4 with a pyrazole ligand for one-pot LA polymerization improved catalytic activity compared with using TiOiPr4 only.

Aluminum‐Catalyzed One‐Pot Synthesis of Polyester‐ b ‐Polypeptide Block Copolymers by Ring‐Opening Polymerization

2019 ◽  
Vol 220 (14) ◽  
pp. 1900040 ◽  
Author(s):  
Thibault E. Schmid ◽  
Carine Robert ◽  
Vincent Richard ◽  
Sumesh K. Raman ◽  
Vincent Guérineau ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
One Pot ◽  
One Pot Synthesis

2-Azaallyl Anion Initiated Ring-Opening Polymerization of N-Sulfonyl Aziridines: One-Pot Synthesis of Primary Amine-Ended Telechelic Polyaziridines

2019 ◽  
Vol 52 (10) ◽  
pp. 3888-3896 ◽  
Author(s):  
Ying Wang ◽  
Ruhan Yang ◽  
Wenyi Luo ◽  
Zhunxuan Li ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Primary Amine ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
One Pot ◽  
One Pot Synthesis
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