High performance benzoimidazolyl-based aminophenolate zinc complexes for isoselective polymerization of rac-lactide

2019 ◽  
Vol 55 (68) ◽  
pp. 10112-10115 ◽  
Author(s):  
Yanmei Gong ◽  
Haiyan Ma
Keyword(s):  
Ring Opening ◽  
High Performance ◽  
Ring Opening Polymerization ◽  
Zinc Complexes ◽  
Mild Conditions ◽  
Highly Active

A series of zinc complexes supported by achiral benzoimidazolyl-based aminophenolate ligands were employed as highly active initiators for the ring-opening polymerization of rac-lactide to afford highly isotactic polymers under mild conditions.

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>

Sodium complexes bearing cavity-like conformations: a highly active and well-controlled catalytic system for macrolactone homo- and copolymerization

2021 ◽  
Vol 12 (13) ◽  
pp. 1957-1966
Author(s):  
Xinya Wang ◽  
Xiaohua Wang ◽  
Nuo Zhen ◽  
Jin Gu ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Catalytic System ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Highly Active ◽  
Sodium Complexes

Sodium complexes displaying cavity-like conformations and, therefore, suppressed transesterification during the ring-opening polymerization of pentadecalactone are disclosed herein.

scholarly journals Enolic Schiff Base Zinc Amide Complexes: Highly Active Catalysts for Ring-Opening Polymerization of Lactide and ε-Caprolactone

2018 ◽  
Vol 36 (10) ◽  
pp. 1123-1128 ◽  
Author(s):  
Chen-Yang Hu ◽  
Ran-Long Duan ◽  
Jing-Wei Yang ◽  
Shu-Jun Dong ◽  
Zhi-Qiang Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Highly Active

Propargylamine: An Attractive Amino Source for Designing High-Performance Benzoxazine Resins with Low Polymerization Temperatures

2021 ◽  
Author(s):  
Yu Liu ◽  
Weichen Sheng ◽  
Ren Yin ◽  
Kan Zhang
Keyword(s):  
Ring Opening ◽  
High Performance ◽  
Ring Opening Polymerization ◽  
Polymerization Temperature

Aniline is a very common amino source for benzoxazine synthesis, but generally resulting in relatively high ring-opening polymerization temperatures. The exploration of alternative amine sources to lower the polymerization temperature...

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