PSEUDO-POLYROTAXANE, POLYROTAXANE, AND MANUFACTURING METHOD THEREFOR

• Main Authors: ITO KOZO, KATO KAZUAKI, JANG RANG
• Format: Patent
• Language: English; Japanese
• Published: 26.09.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a low included pseudo-polyrotaxane or polyrotaxane, and/or a manufacturing method for selectively providing the low included pseudo-polyrotaxane or polyrotaxane at high yield.SOLUTION: The above described problem is solved by pseudo-polyrotaxane, in which an aperture of a cyclic molecule which is at least one kind selected from a group consisting of α-cyclodextrin, β-cyclodextrin, and γ-cyclodextrin, is included in a skewer shape by a water-soluble linear molecule, a part of -OH groups in the cyclic molecule is substituted by -O-(CHR)-CHR-OH, where Ris H, a methyl group or an ethyl group, Ris H, a methyl group or an ethyl group, n is an integer of 1 to 6, and inclusion rate of the cyclic molecule is 1 to 22% when normal inclusion rate defined by length of the water-soluble linear molecule and thickness of the cyclic molecule is 100%.SELECTED DRAWING: None 【課題】低包接の擬ポリロタキサン又はポリロタキサンの提供及び／又は該擬ポリロタキサン又はポリロタキサンを選択的に且つ高収率で得る製造方法の提供。【解決手段】α−シクロデキストリン、β−シクロデキストリン及びγ−シクロデキストリンからなる群から選ばれる少なくとも１種である環状分子の開口部が水溶性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であって、環状分子の−ＯＨ基の一部が−Ｏ−（ＣＨＲ１）ｎ−ＣＨＲ２−ＯＨ（式中、Ｒ１はＨ、メチル基又はエチル基であり、Ｒ２はＨ、メチル基又はエチル基であり、ｎは１〜６の整数である）で置換されてなり、水溶性直鎖状分子の長さと環状分子の厚みから規定される規定包接率を１００％とするとき、該環状分子の包接率が１〜２２％である、擬ポリロタキサンにより、上記課題を解決する。【選択図】なし