New phenazine-containing ladder polymer of intrinsic microporosity from a spirobisindane-based AB-type monomer

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79625-79630 ◽  
Author(s):  
Bader Ghanem ◽  
Fahd Alghunaimi ◽  
Nasser Alaslai ◽  
Xiaohua Ma ◽  
Ingo Pinnau
Keyword(s):  
Polymer Of Intrinsic Microporosity ◽  
Ladder Polymer ◽  
Solution Processable ◽  
Intrinsic Microporosity

A new solution-processable ladder polymer (PSBI-AB) of intrinsic microporosity with dibenzodioxane linkages and bis(phenazine) units was designed and synthesized by self-polymerization of an AB-type monomer containing both catechol and aromatic dichloride groups.

scholarly journals Chemical modification of the polymer of intrinsic microporosity PIM-1 for enhanced hydrogen storage

Adsorption ◽  
2020 ◽  
Vol 26 (7) ◽  
pp. 1083-1091
Author(s):  
Mi Tian ◽  
Sébastien Rochat ◽  
Hamish Fawcett ◽  
Andrew D. Burrows ◽  
Christopher R. Bowen ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Hydrogen Adsorption ◽  
Sorption Properties ◽  
Bet Surface Area ◽  
Polymer Modification ◽  
Gas Sorption ◽  
Chemically Modified ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

Abstract A detailed investigation has been carried out of the pre-polymerisation modification of the polymer of intrinsic microporosity PIM-1 by the addition of two methyl (Me) groups to its spirobisindane unit to create a new chemically modified PIM-1 analogue, termed MePIM. Our work explores the effects of this modification on the porosity of PIM-1 and hence on its gas sorption properties. MePIM was successfully synthesised using either low (338 K) or high (423 K) temperature syntheses. It was observed that introduction of methyl groups to the spirobisindane part of PIM-1 generates additional microporous spaces, which significantly increases both surface area and hydrogen storage capacity. The BET surface area (N2 at 77 K) was increased by ~ 12.5%, resulting in a ~ 25% increase of hydrogen adsorption after modification. MePIM also maintains the advantages of good processability and thermal stability. This work provides new insights on a facile polymer modification that enables enhanced gas sorption properties.

scholarly journals Polymer of Intrinsic Microporosity Induces Host-Guest Substrate Selectivity in Heterogeneous 4-Benzoyloxy-TEMPO-Catalysed Alcohol Oxidations

2015 ◽  
Vol 7 (1) ◽  
pp. 70-78 ◽  
Author(s):  
Sunyhik D. Ahn ◽  
Adam Kolodziej ◽  
Richard Malpass-Evans ◽  
Mariolino Carta ◽  
Neil B. McKeown ◽  
...  
Keyword(s):  
Substrate Selectivity ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

scholarly journals Redox reactivity at silver microparticle—glassy carbon contacts under a coating of polymer of intrinsic microporosity (PIM)

2017 ◽  
Vol 21 (7) ◽  
pp. 2141-2146 ◽  
Author(s):  
Daping He ◽  
Erwan Rauwel ◽  
Richard Malpass-Evans ◽  
Mariolino Carta ◽  
Neil B. McKeown ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Polymer Of Intrinsic Microporosity ◽  
Redox Reactivity ◽  
Intrinsic Microporosity

scholarly journals Biphasic Voltammetry and Spectroelectrochemistry in Polymer of Intrinsic Microporosity—4-(3-Phenylpropyl)-Pyridine Organogel/Aqueous Electrolyte Systems: Reactivity of MnPc Versus MnTPP

2018 ◽  
Vol 10 (4) ◽  
pp. 295-304 ◽  
Author(s):  
Vellaichamy Ganesan ◽  
Elena Madrid ◽  
Richard Malpass-Evans ◽  
Mariolino Carta ◽  
Neil B. McKeown ◽  
...  
Keyword(s):  
Aqueous Electrolyte ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity
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