Cationic polycarbonates via ring-opening polymerization: design, synthesis, and applications

2019 ◽  
Vol 10 (3) ◽  
pp. 296-305 ◽  
Author(s):  
Yu Dai ◽  
Xiaojin Zhang
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Synthetic Methods ◽  
Design Synthesis

The synthetic methods and applications of cationic polycarbonates via ring-opening polymerization are highlighted.

Hydrophilic Aliphatic Polyesters:  Design, Synthesis, and Ring-Opening Polymerization of Functional Cyclic Esters

2000 ◽  
Vol 33 (13) ◽  
pp. 4619-4627 ◽  
Author(s):  
Mikael Trollsås ◽  
Victor Y. Lee ◽  
David Mecerreyes ◽  
Peter Löwenhielm ◽  
Michael Möller ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Aliphatic Polyesters ◽  
Design Synthesis ◽  
Cyclic Esters

scholarly journals Progress in the Preparation of Functional and (Bio)Degradable Polymers via Living Polymerizations

2020 ◽  
Vol 21 (24) ◽  
pp. 9581
Author(s):  
Si-Ting Lin ◽  
Chung-Chi Wang ◽  
Chi-Jung Chang ◽  
Yasuyuki Nakamura ◽  
Kun-Yi Andrew Lin ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Synthetic Methods ◽  
Degradable Polymers ◽  
Radical Ring ◽  
Aliphatic Polyesters ◽  
Innovative Methods ◽  
Living Polymerizations ◽  
Step Growth ◽  
Synthetic Methodologies

This review presents the latest developments in (bio)degradable approaches and functional aliphatic polyesters and polycarbonates prepared by typical ring-opening polymerization (ROP) of lactones and trimethylene carbonates. It also considers several recent innovative synthetic methods including radical ring-opening polymerization (RROP), atom transfer radical polyaddition (ATRPA), and simultaneous chain- and step-growth radical polymerization (SCSRP) that produce aliphatic polyesters. With regard to (bio)degradable approaches, we have summarized several representative cleavable linkages that make it possible to obtain cleavable polymers. In the section on functional aliphatic polyesters, we explore the syntheses of specific functional lactones, which can be performed by ring-opening copolymerization of typical lactone/lactide monomers. Last but not the least, in the recent innovative methods section, three interesting synthetic methodologies, RROP, ATRPA, and SCSRP are discussed in detail with regard to their reaction mechanisms and polymer functionalities.

Synthesis of Polylactide with Thiol End Groups

2003 ◽  
Vol 68 (6) ◽  
pp. 1131-1140 ◽  
Author(s):  
Štěpán Popelka ◽  
František Rypáček
Keyword(s):  
Allyl Alcohol ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Synthetic Methods ◽  
Thiol Groups ◽  
End Groups ◽  
Synthetic Routes ◽  
Subsequent Modification

Four synthetic routes to poly(L-lactide) with thiol end groups based on ring-opening polymerization of L-lactide (LA) catalysed with tin(II) 2-ethylhexanoate (Sn(Oct)2) are reported. The following alcohols were used as co-initiators of polymerization: 2-sulfanylethan-1-ol, 2-[(2,4-dinitrophenyl)sulfanyl]ethan-1-ol, 2-(tritylsulfanyl)ethan-1-ol and allyl alcohol. End groups introduced into polymers by co-initiators were transformed to thiol groups by a subsequent modification reaction. The efficiencies of the used synthetic methods were evaluated and discussed. The best results were obtained with co-initiator 2-(tritylsulfanyl)ethan-1-ol.

Design, synthesis and ring-opening polymerization of a new iodinated carbonate monomer: a universal route towards ultrahigh radiopaque aliphatic polycarbonates

2017 ◽  
Vol 8 (43) ◽  
pp. 6665-6674 ◽  
Author(s):  
Qian Ma ◽  
Kewen Lei ◽  
Jian Ding ◽  
Lin Yu ◽  
Jiandong Ding
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Design Synthesis

A universal route towards ultrahigh radiopaque aliphatic polycarbonates was developed based on a new iodinated carbonate monomer.

A Recommender System for Inverse Design of Polycarbonates and Polyesters

2020 ◽  
Author(s):  
Nathaniel Park ◽  
Dmitry Yu. Zubarev ◽  
James L. Hedrick ◽  
Vivien Kiyek ◽  
Christiaan Corbet ◽  
...  
Keyword(s):  
Ring Opening ◽  
High Performance ◽  
Recommendation System ◽  
Polymeric Materials ◽  
Monomer Conversion ◽  
Design Strategy ◽  
Ring Opening Polymerization ◽  
Inverse Design ◽  
False Negatives ◽  
Accelerate Development

The convergence of artificial intelligence and machine learning with material science holds significant promise to rapidly accelerate development timelines of new high-performance polymeric materials. Within this context, we report an inverse design strategy for polycarbonate and polyester discovery based on a recommendation system that proposes polymerization experiments that are likely to produce materials with targeted properties. Following recommendations of the system driven by the historical ring-opening polymerization results, we carried out experiments targeting specific ranges of monomer conversion and dispersity of the polymers obtained from cyclic lactones and carbonates. The results of the experiments were in close agreement with the recommendation targets with few false negatives or positives obtained for each class.<br>

Bisurea and Bisthiourea H-Bonding Organocatalysts for Ring-Opening Polymerization: Cues for the Catalyst Design

2019 ◽  
Vol 52 (23) ◽  
pp. 9232-9237 ◽  
Author(s):  
Rukshika S. Hewawasam ◽  
U. L. D. Inush Kalana ◽  
Nayanthara U. Dharmaratne ◽  
Thomas J. Wright ◽  
Timothy J. Bannin ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Catalyst Design
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