One-step synthesis and ring-opening polymerization of novel macrocyclic(arylene multisulfide) oligomers

2003 ◽  
Vol 91 (2) ◽  
pp. 735-741 ◽  
Author(s):  
K. Chen ◽  
Y. Z. Meng ◽  
S. C. Tjong ◽  
A. S. Hay
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
One Step

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.

One-step synthesis of triarm block copolymers by simultaneous atom transfer radical and ring-opening polymerization

2015 ◽  
Vol 73 (6) ◽  
pp. 1497-1513 ◽  
Author(s):  
Temel Öztürk ◽  
Mahmut Yavuz ◽  
Melahat Göktaş ◽  
Baki Hazer
Keyword(s):  
Block Copolymers ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Atom Transfer ◽  
One Step

Heterotellurium-containing macrocycle towards degradable tellurium-functionalized polymer

2021 ◽  
Author(s):  
Jieni Hu ◽  
Chuanhao Sun ◽  
Siqi Li ◽  
Yuan Yuan ◽  
Yan Zhang
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Ring Closure ◽  
One Pot ◽  
One Step

We firstly establish a facile one-step ring-closure methodology to obtain a novel macrocyclic tellurocarbonates (MTe) series. The well-defined poly(telluride-carbonate)s (PTe) was developed by one-pot organocatalytic ring-opening polymerization (ROP) of MTe....

Biodegradable phosphorylcholine copolymer for cardiovascular stent coating

2020 ◽  
Vol 8 (24) ◽  
pp. 5361-5368 ◽  
Author(s):  
Jun Liu ◽  
Jing Wang ◽  
Yun-fan Xue ◽  
Ting-ting Chen ◽  
Dan-ni Huang ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Promising Material ◽  
Radical Ring ◽  
Biodegradable Stent ◽  
Cardiovascular Stent ◽  
One Step ◽  
Stent Coating

A biodegradable phosphorylcholine-based copolymer synthesized via one-step radical ring-opening polymerization may be a promising material for biodegradable stent coating.

scholarly journals Linear and three-arm star hydroxytelechelic poly(benzyl β-malolactonate)s: a straightforward one-step synthesis through ring-opening polymerization

2015 ◽  
Vol 6 (32) ◽  
pp. 5851-5859 ◽  
Author(s):  
Ghislaine Barouti ◽  
Cédric G. Jaffredo ◽  
Sophie M. Guillaume
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Operating Conditions ◽  
One Step

Ring-opening polymerization (ROP) of racemic-benzyl β-malolactonate (MLABe) initiated by an alcohol (diol or triol) and catalyzed by a metal triflate M(OTf)3, afforded α,ω-hydroxy telechelic PMLABe under mild operating conditions.

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