Abstract
In this study, we prepared a series of amine-functionalized polysilsesquioxanes (PSQs) containing cross-linked structures via the hydrolytic condensation of mixtures of amino-group-containing organotrialkoxysilanes and bridged organoalkoxysilanes in water under CO2 gas bubbling, followed by lyophilization and heat treatment at 120 °C for 4 h. Among the resulting materials, the amine-functionalized PSQ (PSQ-Am-CL-0.67) prepared from a mixture of 3-aminopropyltrimethoxysilane and bis[3-(trimethoxysilyl)propyl]amine (molar ratio 1:1) as the starting materials in CO2-gas-bubbling water with a solution concentration of 0.67 mol/L exhibited relatively high CO2 adsorption capacity under dry conditions (2.30 mmol(CO2)/g(material)). Moreover, even after repeating the adsorption and desorption of CO2 10 times, the CO2 adsorption capacity of PSQ-Am-CL-0.67 did not noticeably reduce, indicating that it could be used repeatedly as a CO2 capture material. [Figure not available: see fulltext.].
| Original language | English |
|---|---|
| Pages (from-to) | 505-513 |
| Number of pages | 9 |
| Journal | Journal of Sol-Gel Science and Technology |
| Volume | 91 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2019 Sep 15 |
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Keywords
- Carbon dioxide adsorption
- Hydrolytic condensation
- Polysilsesquioxane
- Porous material
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Chemistry(all)
- Biomaterials
- Condensed Matter Physics
- Materials Chemistry
Cite this
Preparation of CO2-adsorbable amine-functionalized polysilsesquioxanes containing cross-linked structures without using surfactants and strong acid or base catalysts. / Sainohira, Yusaku; Fujino, Koki; Shimojima, Atsushi; Kuroda, Kazuyuki; Kaneko, Yoshiro.
In: Journal of Sol-Gel Science and Technology, Vol. 91, No. 3, 15.09.2019, p. 505-513.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of CO2-adsorbable amine-functionalized polysilsesquioxanes containing cross-linked structures without using surfactants and strong acid or base catalysts
AU - Sainohira, Yusaku
AU - Fujino, Koki
AU - Shimojima, Atsushi
AU - Kuroda, Kazuyuki
AU - Kaneko, Yoshiro
PY - 2019/9/15
Y1 - 2019/9/15
N2 - In this study, we prepared a series of amine-functionalized polysilsesquioxanes (PSQs) containing cross-linked structures via the hydrolytic condensation of mixtures of amino-group-containing organotrialkoxysilanes and bridged organoalkoxysilanes in water under CO2 gas bubbling, followed by lyophilization and heat treatment at 120 °C for 4 h. Among the resulting materials, the amine-functionalized PSQ (PSQ-Am-CL-0.67) prepared from a mixture of 3-aminopropyltrimethoxysilane and bis[3-(trimethoxysilyl)propyl]amine (molar ratio 1:1) as the starting materials in CO2-gas-bubbling water with a solution concentration of 0.67 mol/L exhibited relatively high CO2 adsorption capacity under dry conditions (2.30 mmol(CO2)/g(material)). Moreover, even after repeating the adsorption and desorption of CO2 10 times, the CO2 adsorption capacity of PSQ-Am-CL-0.67 did not noticeably reduce, indicating that it could be used repeatedly as a CO2 capture material. [Figure not available: see fulltext.].
AB - In this study, we prepared a series of amine-functionalized polysilsesquioxanes (PSQs) containing cross-linked structures via the hydrolytic condensation of mixtures of amino-group-containing organotrialkoxysilanes and bridged organoalkoxysilanes in water under CO2 gas bubbling, followed by lyophilization and heat treatment at 120 °C for 4 h. Among the resulting materials, the amine-functionalized PSQ (PSQ-Am-CL-0.67) prepared from a mixture of 3-aminopropyltrimethoxysilane and bis[3-(trimethoxysilyl)propyl]amine (molar ratio 1:1) as the starting materials in CO2-gas-bubbling water with a solution concentration of 0.67 mol/L exhibited relatively high CO2 adsorption capacity under dry conditions (2.30 mmol(CO2)/g(material)). Moreover, even after repeating the adsorption and desorption of CO2 10 times, the CO2 adsorption capacity of PSQ-Am-CL-0.67 did not noticeably reduce, indicating that it could be used repeatedly as a CO2 capture material. [Figure not available: see fulltext.].
KW - Carbon dioxide adsorption
KW - Hydrolytic condensation
KW - Polysilsesquioxane
KW - Porous material
UR - http://www.scopus.com/inward/record.url?scp=85069621598&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069621598&partnerID=8YFLogxK
U2 - 10.1007/s10971-019-05072-6
DO - 10.1007/s10971-019-05072-6
M3 - Article
VL - 91
SP - 505
EP - 513
JO - Journal of Sol-Gel Science and Technology
JF - Journal of Sol-Gel Science and Technology
SN - 0928-0707
IS - 3
ER -