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US 11,745,145 B2Granted
Ion-sensitive substance, ion-sensitive membrane using the same, and method for producing the ion-sensitive substance
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKei Toyota, Norihito Tsukahara
Life of this patent
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Abstract
An ion-sensitive substance containing a crown ether structure composed of a repeating unit represented by formula (a): —CR1R2—CR3X—O— . . . (a) (in the formula, X is an organic group having an alkoxysilyl group at a terminal, and R1, R2 and R3 are each a hydrogen atom or a hydrocarbon group), and a part or all of the alkoxysilyl groups in the crown ether structure may be hydrolyzed to form a silanol group.
Claims13
An ion-sensitive substance comprising:
- a crown ether structure composed of repeating units represented by formula (a):
- —CR1R2—CR3X—O— (a)
- where X is an organic group having an alkoxysilyl group at a terminal, with the proviso that at least one of the organic groups X has a silanol group at a terminal, and
- R1, R2 and R3 are each a hydrogen atom or a hydrocarbon group,
- wherein a number of the organic groups X having terminal alkoxysilyl groups is the same as a number of oxygen atoms constituting the crown ether structure.
2 more elements
An ion-sensitive substance comprising
- a crown ether structure composed of repeating units represented by formula (a):
- —CR1R2—CR3X—O— (a)
- where X is an organic group having an alkoxysilyl group at a terminal, with the proviso that at least one of the organic groups X has a silanol group at a terminal, and
- R1, R2 and R3 are each a hydrogen atom or a hydrocarbon group,
- wherein the crown ether structure is any one of 12-Crown-4, 15-Crown-5 or 18-Crown-6, and a number of the organic groups X having terminal alkoxysilyl groups is the same as a number of oxygen atoms constituting the crown ether structure.
2 more elements
Dependencies are inferred from the claim text.