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Photocrosslinkable polyrotaxane, composition comprising the photocrosslinkable polyrotaxane, crosslinked body derived from the composition, and methods for producing same

A technology of photocrosslinking and polyrotaxane, applied in the field of crosslinkers, can solve the problem of low degree of modification

Active Publication Date: 2012-11-14
株式会社ASM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degree of modification of the hydrophobic polyrotaxane on ε-caprolactone in the examples is low, and only about 0.02 results are disclosed.

Method used

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  • Photocrosslinkable polyrotaxane, composition comprising the photocrosslinkable polyrotaxane, crosslinked body derived from the composition, and methods for producing same
  • Photocrosslinkable polyrotaxane, composition comprising the photocrosslinkable polyrotaxane, crosslinked body derived from the composition, and methods for producing same
  • Photocrosslinkable polyrotaxane, composition comprising the photocrosslinkable polyrotaxane, crosslinked body derived from the composition, and methods for producing same

Examples

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Embodiment ）

[0223] The present invention will be described in further detail below based on the examples, but the present invention is not limited by the examples.

Embodiment 1

[0225] According to the method described in WO2005-080469 (wherein, the content of this document is incorporated in this specification as a reference), the linear molecule: polyethylene glycol (average molecular weight: 35,000), the cyclic molecule: α-cyclogluter fine (hereinafter referred to as "cyclodextrin" as "CD"), capping group: a compound obtained by further hydroxypropylation of polyrotaxane formed by adamantine group (hereinafter referred to as hydroxypropylated polyrotaxane "HAPR35") (α-CD inclusion ratio: 25%; hydroxypropyl modification ratio: 50%; theoretical hydroxyl group amount: 9.7 mmol / g; weight average molecular weight Mw based on gel permeation chromatography (GPC): 150000). The measurement of molecular weight and molecular weight distribution was carried out with a TOSOHHLC-8220GPC device. Chromatographic column: TSK guard column Super AW-H and TSKgel Super AWM-H (two connected), eluent: dimethyl sulfoxide / 0.01MLiBr, column temperature: 50°C, flow rate: 0.5...

Embodiment 2

[0232] Except that 21.5 g of ε-caprolactone and 1.0 g of α-methyl-γ-butyrolactone were used instead of 22.5 g of ε-caprolactone in of Example 1, the same operation was carried out as in Example 1 to produce a modified polymer Rotaxane A-2. As measured by GPC, the weight average molecular weight Mw of the obtained polyrotaxane was 580,000.

[0233] The degree of polymerization of the copolymer of ε-caprolactone and α-methyl-γ-butyrolactone was investigated by the amount of theoretical hydroxyl groups of the raw material HAPR35 and the monomer consumption of gas chromatography (GC) (almost 100%). As a result, it was found that, The degree of polymerization of the obtained modified polyrotaxane A-2 was 4.1.

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Abstract

Disclosed are: a photocrosslinkable polyrotaxane having a high scratch resistance, low hysteresis loss and so on; a composition comprising the photocrosslinkable polyrotaxane and so on; a crosslinked body obtained from the composition; and methods for producing the same. Specifically disclosed are: a photocrosslinkable polyrotaxane comprising a cyclic molecule of polyrotaxane, wherein pseudo-polyrotaxane is formed by piercing the opening of a cyclic molecule by a straight-chain molecule to form a clathrate therewith and blocking groups are positioned at both ends of the pseudo-polyrotaxane to prevent the withdrawal of the cyclic molecule, said cyclic molecule of polyrotaxane having a group represented by -M-Y (wherein M is represented by formula II; X represents a straight-chain alkylene group having 1-8 carbon atoms, etc.; n is 1-10 on average; and Y represents a group having a photopolymerizable group); a composition comprising the photocrosslinkable polyrotaxane and so on; a crosslinked body derived from the composition; and methods for producing the same.

Description

technical field [0001] The present invention relates to a photocrosslinkable polyrotaxane in which the cyclic molecule constituting the polyrotaxane has a photocrosslinkable group, a composition consisting essentially only of the photocrosslinkable polyrotaxane, and a photocrosslinkable polyrotaxane having the photocrosslinkability Compositions of polyrotaxanes, crosslinked products of these compositions, and methods for producing them. Background technique [0002] Since polyrotaxanes have viscoelastic properties, etc., various applications have been considered and various materials have been developed. [0003] Patent Document 1 discloses a material in which a polyrotaxane is bonded to a polymer other than a polyrotaxane, that is, at least a part of another polymer via a cyclic molecule. Specifically, Patent Document 1 discloses: an example in which a polyrotaxane is bonded to another polymer by adding a crosslinking agent; the embodiment. [0004] Patent Document 2 dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F299/00C08G63/08C08G65/329
CPCC08F299/00C08F2/44C08F2/50C08G63/08C08G65/329C08G65/333C08J3/24C08J3/28
Inventor 林佑树涩谷麻里子坂本洋一
Owner 株式会社ASM
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