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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Published inPolymer chemistry Vol. 15; no. 6; pp. 553 - 564
Main Authors Zih-Yu Chen, Wei-Cheng, Chen, Shiao-Wei Kuo
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 06.02.2024
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%).
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ISSN:1759-9954
1759-9962
DOI:10.1039/d3py01115a