METHOD FOR MODIFYING POLYMER, METHOD FOR PRODUCING MODIFIED POLYMER USING THE SAME, AND MODIFIED POLYMER

• US 20190315936A1
• Filed: 12/16/2017
• Published: 10/17/2019
• Est. Priority Date: 12/16/2016
• Status: Active Grant

• Current Assignee: Earth Corp., Osaka University
• Original Assignee: Acenet Inc., Osaka University
• Inventors: TAKAMORI, Kiyoto, OHKUBO, Kei, INOUE, Tsuyoshi, MIZUTA, Yasushi, ITOU, Yuichi
• Granted Patent: US 11,407,871 B2
• Time in Patent Office: Days
• CPC Class Codes: C08J 2323/06 Polyethene
• CPC Class Codes: C08J 2323/12 Polypropene
• CPC Class Codes: C08J 2323/30 by oxidation
• CPC Class Codes: C08J 2333/10 Homopolymers or copolymers of methacrylic acid esters
• CPC Class Codes: C08J 2333/12 Homopolymers or copolymers of methyl methacrylate
• CPC Class Codes: C08J 2369/00 Characterised by the use of polycarbonates; Derivatives of polycarbonates
• CPC Class Codes: C08J 2383/06 containing silicon bound to oxygen-containing groups C08J2383/12 takes precedence
• CPC Class Codes: C08J 7/00 Chemical treatment or coating of shaped articles made of macromolecular substances coating with metallic material C23C; electrolytic deposition of metals C25
• CPC Class Codes: C08J 7/123 Treatment by wave energy or particle radiation C08J7/18 takes precedence
• CPC Class Codes: C08J 7/18 using wave energy or particle radiation
• CPC Class Codes: Y02W 30/62 Plastics recycling; Rubber recycling

Abstract

The present invention provides a new method by which polymers can be modified. The present invention provides a method for modifying a polymer including the step of: irradiating a reaction system containing a polymer with light to react the reaction system in a presence of a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.

Claims

1. A method for modifying a polymer comprising the step of:

irradiating a reaction system containing a polymer with light to react the reaction system in a presence of a compound radical, wherein

the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.

2. The modifying method according to claim 1, wherein

the Group 15 element is at least one of N or P,

the Group 16 element is at least one selected from the group consisting of O, S, Se, and Te, and

the Group 17 element is at least one selected from the group consisting of F, Cl, Br, and I.

3. The modifying method according to claim 1, wherein

the reaction system is a gas reaction system, and

the gas reaction system contains the compound radical.

5. The modifying method according to claim 1, wherein

the reaction system is a liquid reaction system,

the liquid reaction system contains an organic phase, and

in the reaction step, at least the organic phase is irradiated with light.

8. The modifying method according to claim 5, wherein

the liquid reaction system is a two-phase reaction system containing the organic phase and an aqueous phase.

9. The modifying method according to claim 5, wherein

in the reaction step, the liquid reaction system is irradiated with light while bringing the liquid reaction system into contact with air.

10. The modifying method according to claim 5, wherein

the liquid reaction system is a two-phase reaction system containing the organic phase and an aqueous phase, and

in the reaction step, the aqueous phase is irradiated with light in a state in which oxygen is dissolved in the aqueous phase.

11. The modifying method according to claim 5, wherein

the organic phase contains an organic solvent, and the organic solvent is at least one selected from the group consisting of a hydrocarbon solvent, a halogenated solvent, and a fluorous solvent.

14. The modifying method according to claim 1, wherein

the compound radical is an oxide radical of the Group 17 element.

15. The modifying method according to claim 1, wherein

the Group 17 element is halogen.

16. The modifying method according to claim 1, wherein

the compound radical is a chlorine dioxide radical.

17. The modifying method according to claim 1, wherein

the compound radical is a chlorine dioxide radical,

the reaction system contains an organic phase,

the organic phase contains the chlorine dioxide radical,

a molded body of the polymer is disposed in the organic phase, and

in the reaction step, a polymer exposed on a surface of the polymer molded body is oxidized by the light irradiation.

22. The modifying method according to claim 1, further comprising the step of:

introducing a functional group into a changed site of the polymer.

27. The modifying method according to claim 1, wherein

the polymer to be modified contains carbon and hydrogen and has a carbon-hydrogen bond.

34. A method for producing a modified polymer comprising the step of:

modifying a polymer, wherein

in the modifying step, the polymer is modified by the modifying method according to claim 1.

4. (canceled)

6-7. -7. (canceled)

12-13. -13. (canceled)

18-21. -21. (canceled)

23-26. -26. (canceled)

28. (canceled)

29. A method for modifying a polymer comprising the step of:

irradiating a reaction system containing a polymer with light in a presence of a compound, wherein

the compound is a compound containing one element selected from the group consisting of Group 15 elements and Group 16 elements, a Group 17 element, and a Group 1 element.

30. The modifying method according to claim 29, wherein

the Group 15 element is at least one of N or P,

the Group 16 element is at least one selected from the group consisting of O, S, Se, and Te,

the Group 17 element is at least one selected from the group consisting of F, Cl, Br, and I, and

the Group 1 element is at least one selected from the group consisting of H, Li, Na, K, Rb, and Cs.

31. The modifying method according to claim 29, further comprising the step of:

generating the compound, wherein

in the compound generating step, at least one of a Lewis acid or a Brø

nsted acid containing a Group 1 element is caused to act on a compound ion containing one element selected from the group consisting of the Group 15 elements and the Group 16 elements, and the Group 17 element.

32-33. -33. (canceled)

35-37. -37. (canceled)

38. A modified polymer comprising:

at least one element (α

) selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element (β

); and

a site in which a ratio between the element (α

)% [Cα

] to all elements excluding hydrogen and helium in the polymer specified by an XPS method and the element (β

)% [Cβ

] to all elements excluding hydrogen and helium in the polymer specified by an XPS method satisfies the following condition.

5000≥

[Cα

]/[Cβ

]>

0

42. The modified polymer according to claim 38, wherein

the polymer contains a functional group containing at least one element (α

) selected from the group consisting of Group 15 elements and Group 16 elements, and a functional group containing a Group 17 element (β

).

39-41. -41. (canceled)

43-44. -44. (canceled)