Imperial College London
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Dr Becky Greenaway

Faculty of Natural Sciences, Department of Chemistry

Senior Lecturer
 
 
 
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Contact

 

r.greenaway Website

 
 
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Location

 

401CMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Brand:2021:10.1039/d1ta01906f,
author = {Brand, M and Greenwell, F and Clowes, R and Egleston, B and Kai, A and Cooper, A and Bennett, T and Greenaway, R},
doi = {10.1039/d1ta01906f},
journal = {Journal of Materials Chemistry A},
pages = {19807--19816},
title = {Melt-quenched porous organic cage glasses},
url = {http://dx.doi.org/10.1039/d1ta01906f},
volume = {9},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The discrete molecular nature of porous organic cages (POCs) has allowed us to direct the formation ofcrystalline materials by crystal engineering. It has also been possible to create porous amorphous solidsby deliberately disrupting the crystalline packing, either with chemical modification or by processing.More recently, organic cages were used to form isotropic porous liquids. However, the connectionbetween solid and liquid states of POCs, and the glass state, are almost completely unexplored. Here, weinvestigate the melting and glass-forming behaviour of a range of organic cages, including both shapepersistentPOCs formed by imine condensation, and reduced and synthetically post-modified aminePOCs that are more flexible and lack shape-persistence. The organic cages exhibited melting andquenching of the resultant liquids provides molecular glasses. One of these molecular glasses exhibitedimproved gas uptake for both CO2 and CH4 compared to the starting amorphous cage. In addition,foaming of the liquid in one case resulted in a more stable and less soluble glass, which demonstratesthe potential for an alternative approach to forming materials such as membranes without solutionprocessing.
AU  - Brand,M
AU  - Greenwell,F
AU  - Clowes,R
AU  - Egleston,B
AU  - Kai,A
AU  - Cooper,A
AU  - Bennett,T
AU  - Greenaway,R
DO  - 10.1039/d1ta01906f
EP  - 19816
PY  - 2021///
SN  - 2050-7488
SP  - 19807
TI  - Melt-quenched porous organic cage glasses
T2  - Journal of Materials Chemistry A
UR  - http://dx.doi.org/10.1039/d1ta01906f
UR  - http://hdl.handle.net/10044/1/89655
VL  - 9
ER  -
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