Titanium complexes based on aminodiol ligands for the ring-opening polymerization of ε-caprolactone, rac-β-butyrolactone, and trimethylene carbonate

2011 ◽  
Vol 49 (24) ◽  
pp. 5176-5185 ◽  
Author(s):  
Deivasagayam Dakshinamoorthy ◽  
Frédéric Peruch
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Trimethylene Carbonate ◽  
Titanium Complexes

Ring-opening polymerization of lactones by mono(cyclopentadienyl)titanium complexes

1995 ◽  
Vol 95 (1) ◽  
pp. 195-202 ◽  
Author(s):  
Jun Okuda ◽  
Thomas Kleinhenn ◽  
Peter König ◽  
Insa Taden ◽  
Silvana Ngo ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Titanium Complexes

Biometal Derivatives as Catalysts for the Ring-Opening Polymerization of Trimethylene Carbonate. Optimization of the Ca(II) Salen Catalyst System

2006 ◽  
Vol 39 (13) ◽  
pp. 4374-4379 ◽  
Author(s):  
Donald J. Darensbourg ◽  
Wonsook Choi ◽  
Poulomi Ganguly ◽  
Casseday P. Richers
Keyword(s):  
Ring Opening ◽  
Catalyst System ◽  
Ring Opening Polymerization ◽  
Trimethylene Carbonate

Ring-opening polymerization of trimethylene carbonate to poly(trimethylene carbonate) diol over a heterogeneous high-temperature calcined CeO2 catalyst

2018 ◽  
Vol 54 (99) ◽  
pp. 14017-14020 ◽  
Author(s):  
Masazumi Tamura ◽  
Keitaro Matsuda ◽  
Yoshinao Nakagawa ◽  
Keiichi Tomishige
Keyword(s):  
High Temperature ◽  
Heterogeneous Catalyst ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Trimethylene Carbonate

CeO2 calcined at 1273 K was an effective reusable heterogeneous catalyst for the synthesis of poly(trimethylene carbonate) diol by ring-opening polymerization of trimethylene carbonate under neat conditions without any additives.

scholarly journals Zirconium (IV) Acetylacetonate: Ring-Opening Initiator Mediating One-Step Synthesis of Biodegradable Polyacids

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Piotr Dobrzyński ◽  
Małgorzata Pastusiak ◽  
Joanna Jaworska ◽  
Bożena Kaczmarczyk ◽  
Michał Kwiecień ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Acid Derivative ◽  
Ring Opening ◽  
Active Catalyst ◽  
Ring Opening Polymerization ◽  
Cyclic Carbonate ◽  
Trimethylene Carbonate ◽  
Step Method ◽  
Polymerization Mechanism ◽  
One Step

Biodegradable polyacid is obtained in one-step ring-opening polymerization (ROP) of carboxylic-acid-functionalized six-membered cyclic carbonate mediated with zirconium (IV) acetylacetonate. Exemplary copolymers with L,L-lactide are described as well. Moreover, zirconium (IV) acetylacetonate is found to be active catalyst of trimethylene carbonate (TMC) ROP in presence of carboxylic acid yielding PTMC end-capped with the acid derivative. Polymerization mechanism is hypothesized demonstrating possibilities of the method in work-saving polycation synthesis and one-step method of conjugate synthesis of well-known biocompatible polyesters and polycarbonates.

A New Insight Into the Mechanism of the Ring-Opening Polymerization of Trimethylene Carbonate Catalyzed by Methanesulfonic Acid

2012 ◽  
Vol 214 (1) ◽  
pp. 85-93 ◽  
Author(s):  
João M. Campos ◽  
Maria R. Ribeiro ◽  
Maria F. Ribeiro ◽  
Alain Deffieux ◽  
Frédéric Peruch
Keyword(s):  
Ring Opening ◽  
Methanesulfonic Acid ◽  
Ring Opening Polymerization ◽  
Trimethylene Carbonate ◽  
Insight Into
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