Enhanced thermal and porous properties of double-decker-shaped polyhedral silsesquioxane-bismaleimide (DDSQ-BMI) nanocomposites for high-performance CO2 storage and supercapacitors

In this study, we employed nadic anhydride (ND), which was covalently bound to double-decker silsesquioxane (DDSQ) by hydrosilylation. The terminal aromatic diamine was connected to DDSQ-ND by maleic anhydride (MA) through a dehydration reaction to form DDSQ-bismaleimide (DDSQ-BMI) products. The val...

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Bibliographic Details
Published in:Polymer chemistry 2024-02, Vol.15 (6), p.553-564
Main Authors: Zih-Yu Chen, Wei-Cheng, Chen, Shiao-Wei Kuo
Format: Article
Language:English
Subjects:
Bismaleimides
Capacitance
Carbon dioxide
Carbon sequestration
Curing
Decomposition reactions
Dehydration
Diamines
Hydrosilylation
Maleic anhydride
Nanocomposites
Thermal decomposition
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Summary:In this study, we employed nadic anhydride (ND), which was covalently bound to double-decker silsesquioxane (DDSQ) by hydrosilylation. The terminal aromatic diamine was connected to DDSQ-ND by maleic anhydride (MA) through a dehydration reaction to form DDSQ-bismaleimide (DDSQ-BMI) products. The values of thermal decomposition temperature (Td) and char yield were significantly increased after thermal curing of DDSQ-BMI products as compared to pure BMI without the DDSQ inorganic cage. Among the various thermal curing procedures, DDSQ-MDA-BMI heated at 480 °C for 6 h possessed a highly microporous structure with a significantly large surface area (826 m2 g−1) and displayed high CO2 gas storage and capture at 273 K under 1.0 bar (7.71 wt%). In addition, it displayed excellent specific capacitance (73.66 F g−1) and satisfactory capacitance retention (86.4%).
ISSN:1759-9954
1759-9962
DOI:10.1039/d3py01115a