2016年2月
Polysilsesquioxanes with mixed self-assembled organic tethers: Alkyl chains and alkanoate-aminopropyl pairs
REACTIVE & FUNCTIONAL POLYMERS
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- 巻
- 99
- 号
- 開始ページ
- 9
- 終了ページ
- 16
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.reactfunctpolym.2015.12.002
- 出版者・発行元
- ELSEVIER SCIENCE BV
In order to increase the adsorption rate and to improve the endurance of the structure in the adsorption of transition metal pollutants on the lamellar polysilsesquioxane adsorbent RCOOH-NH2C3H6SiO1.5, we substituted a part of the RCOOH-NH2C3H6- with a simple alkyl chain, CnH2n+2-. We prepared the polysilsesquioxane whose organic chains are 3-aminopropyl (NH2C3H6-) and linear alkyl (C16H33-, C18H37-, C20H42- and C22H46-) groups from 3-aminopropyltrimethoxysilane (APTMS) and alkyltrialkoxysilane/alkyltrichlorosilane, respectively, without degradation of the good lamellar structure. The silanes were condensed with alkaonate (C11H23COOH (LAS), C13H22COOH (MAS), C16H31COOH (PAS), C17H35COOH (SAS)) with the same amount as APTMS. The adsorption of Cu(II) from an aqueous solution was carried out for lamellar solids prepared from C18H37Si(OCH3)(3), APTMS and MAS varying the C18H37Si(OCH3)(3)/APTMS ratio from 0/10 to 5/5. The adsorption rate increased by up to a factor of 91 due to the presence of alkyl chains from alkylsilane, while the capacity did not change significantly except for the ratio 5/5. The mechanism for inhibition of the degradation of the self-assembling structure by the presence of C18H32-chains is discussed. (C) 2015 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.reactfunctpolym.2015.12.002
- ISSN : 1381-5148
- eISSN : 1873-166X
- Web of Science ID : WOS:000370884800003