Solid state chemical transformations through ring-opening polymerization of ferrocene-based conjugated microporous polymers in host–guest complexes with benzoxazine-linked cyclodextrin

2021 ◽  
Author(s):  
Maha Mohamed Samy ◽  
Mohamed Gamal Mohamed ◽  
Tharwat Hassan Mansoure ◽  
Tso Shiuan Meng ◽  
Mo Aqib Raza Khan ◽  
...  
Keyword(s):  
Solid State ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Chemical Transformations ◽  
Microporous Polymers ◽  
State Chemical ◽  
Conjugated Microporous Polymers

Synthesis and properties of poly(1,3-dioxolane) in-situ quasi-solid-state electrolytes via rare-earth triflate catalyst

2021 ◽  
Author(s):  
Guuanming Yang ◽  
Yanfang Zhai ◽  
Jianyao Yao ◽  
Shufeng Song ◽  
Liyang Lin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Ionic Conductivity ◽  
Ring Opening ◽  
Room Temperature ◽  
Ring Opening Polymerization ◽  
Solid State Electrolytes

We report rare-earth triflate catalyst Sc(OTf)3 for ring-opening polymerization of 1,3-dioxolane in-situ producing quasi-solid-state poly(1,3-dioxolane) electrolyte, which not only demonstrates superior ionic conductivity of 1.07 mS cm-1 at room temperature,...

Ring-Opening Polymerization of ε-Caprolactone Using Novel Tin(II) Alkoxide Initiators

2008 ◽  
Vol 55-57 ◽  
pp. 757-760 ◽  
Author(s):  
A. Kleawkla ◽  
Robert Molloy ◽  
W. Naksata ◽  
Winita Punyodom
Keyword(s):  
Solid State ◽  
Rate Constants ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Zero Order ◽  
Molecular Aggregation ◽  
First Order ◽  
First Order Kinetics ◽  
Zero Order Kinetics ◽  
Kinetics Of

Two novel tin(II) alkoxides, namely: tin(II) hexoxide, Sn(OC6H13)2, and tin(II) octoxide, Sn(OC8H17)2, have been synthesized for use as coordination-insertion initiators in the bulk ring-opening polymerization of ε-caprolactone. The kinetics of the polymerization reactions were studied at 140 °C by dilatometry. It was found that both alkoxides were slow to dissolve in the ε-caprolactone monomer due to their molecular aggregation in the solid state. As a result, the slow solubilization of the initiators gave rise to deviations from the expected first-order kinetics. Instead, the kinetic results adhered more closely to zero-order kinetics with apparent zero-order rate constants k0 of 6.58 x 10-2 and 4.63 x 10-2 mol l-1 min-1 for the hexoxide and octoxide respectively

Solid-state emissive cyanostilbene based conjugated microporous polymers via cost-effective Knoevenagel polycondensation

2016 ◽  
Vol 7 (24) ◽  
pp. 3983-3988 ◽  
Author(s):  
Yabo Wei ◽  
Weiben Chen ◽  
Xiaoyu Zhao ◽  
Sanyuan Ding ◽  
Sheng Han ◽  
...  
Keyword(s):  
Solid State ◽  
Topological Structure ◽  
Photophysical Properties ◽  
Cost Effective ◽  
Porous Polymers ◽  
Microporous Polymers ◽  
Conjugated Microporous Polymers

Solid-state emissive cyanostilbene-based conjugated porous polymers with different topological structure and photophysical properties were newly synthesized via cost-effective Knoevenagel polycondensation.

Large-area patterned 2D conjugated microporous polymers via photomask-assisted solid-state photopolymerization

2018 ◽  
Vol 6 (27) ◽  
pp. 7295-7301 ◽  
Author(s):  
Zhengdong Liu ◽  
Yuhang Yin ◽  
Fei Xiu ◽  
Xiangjing Wang ◽  
Shang Ju ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solid State ◽  
Film Thickness ◽  
Reduced Graphene Oxide ◽  
Large Area ◽  
Microporous Polymers ◽  
Reduced Graphene ◽  
Conjugated Microporous Polymers

Large-area patterned 2D conjugated microporous polymers (2D CMPs) were directly grown on SiO2/Si or reduced graphene oxide (rGO) surfaces with controllable film thickness and shape.

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>

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