Compound having crosslinked polyrotaxane and process for...

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 65/32 (2006.01) A61L 27/18 (2006.01) C08B 37/16 (2006.01) C08G 65/30 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2552835

It is intended to provide a crosslinked polyrotaxane formed by crosslinking polyrotaxane molecules via chemical bonds which exhibits excellent optical properties in water or in an aqueous solution of sodium chloride; a compound having this crosslinked polyrotaxane; and a process for producing the same. The above object can be achieved by a crosslinked polyrotaxane having at least two polyrotaxane molecules, wherein linear molecules are included in a skewered-like state at the opening of cyclodextrin molecules and blocking groups are provided at both ends of the linear molecules so as to prevent the cyclodextrin molecules from leaving, and cyclodextrin molecules in at least two polyrotaxane molecules being bonded to each other via a chemical bond, characterized in that hydroxyl (-OH) groups in the cyclodextrin molecules are partly substituted by nonionic groups.

Le but de l'invention est de fournir un polyrotaxane réticulé formé par réticulation de molécules de polyrotaxane par des liaisons chimiques, lequel fait preuve de propriétés optiques excellentes dans l'eau ou dans une solution aqueuse de chlorure d sodium; un composé ayant ce polyrotaxane réticulé; et un procédé pour produire ce dernier. Le but de l'invention est atteint par un polyrotaxane réticulé ayant au moins deux molécules de polyrotaxane, dans lesquelles des molécules linéaires sont inclues dans un état embroché (skewered) à l'ouverture de molécules de cyclodextrine et des groupes de blocage sont prévus aux deux extrémités des molécules linéaires de sortir et des molécules de cyclodextrine dans au moins deux molécules de polyrotaxane étant liées entre elles par un lien chimique caractérisé en ce que des groupes hydroxyles (-OH) dans les molécules de cyclodextrine sont partiellement substitués par des groupes nonioniques.

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