SOL AND GEL HAVING ALKOXY SILANES AND POLYROTAXANE

• Main Authors: YOKOYAMA HIDEAKI, ITO KOZO, MAYUMI KOICHI, JANG RANG, KATO KAZUAKI
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

To provide a silica-based aerogel having desired properties in thermal insulation, transparency and mechanical strength.SOLUTION: The above described problem is solved by a sol having (a) SiR(OR), wherein Rand Rrepresent each independently a linear or branched alkyl group having 1 to 20 carbon atoms, a cyclic alkyl group having 3 to 20 carbon atoms, or a phenyl group which may be substituted, and n represents an integer of 0 to 3, and (b) polyrotaxane by arranging encapsulation group at both ends of pseudo-polyrotaxane in which an aperture of a cyclic molecule is included at a skewer shape by a linear molecule, for preventing the cyclic molecule from detaching.SELECTED DRAWING: None 【課題】断熱性、透明性及び機械的強度において所望の特性を有する、シリカ系エアロゲルの提供。【解決手段】（ａ）ＳｉＲ１ｎ（ＯＲ２）４−ｎ（式中、Ｒ１及びＲ２は各々独立に、炭素数１〜２０の直鎖又は分岐鎖のアルキル基、炭素数３〜２０の環状アルキル基又は置換されてもよいフェニル基を表し、ｎは０〜３の整数を示す）；及び（ｂ）環状分子の開口部が直鎖状分子によって串刺し状に包接されてなる擬ポリロタキサンの両端に環状分子が脱離しないように封鎖基を配置してなるポリロタキサン；を有してなるゾルにより、上記課題を解決する。【選択図】なし