Method for producing organic helical structure, and organic helical structure produced using said method

Patent metadata

Field	Value
Publication number	US-2016107888-A1
Application number	US-201414890161-A
Country	US
Kind code	A1
Filing date	May 12, 2014
Priority date	May 10, 2013
Publication date	Apr 21, 2016
Grant date	—

Abstract

Provided is the possibility for new application of optical vortices. In order to do so, the method for producing an organic helical structure according to the present invention entails irradiating the surface of macromolecules that exhibit a photoisomerization reaction with an optical vortex, thereby forming a nanoscale helical structure on the surface of the macromolecules. In this case, it is preferable that the macromolecules exhibiting a photoisomerization reaction are azo polymer and/or spiropyran-polymer macromolecules. Moreover, it is preferable that the step for forming a nanoscale helical structure is repeated, and that a plurality of nanoscale helical structures are formed in two dimensions on the surface of the macromolecules. It is also preferable that the optical vortex is circularly polarized light, and that the total angular momentum (J) of the optical vortex is not 0.

First claim

What is claimed is:

1 . A method for producing an organic helical structure comprising
irradiating the surface of a polymer which exhibits a photoisomerization reaction with an optical vortex, and thereby forming a nanoscale organic helical structure on the surface of the polymer.

2 . The method for producing the organic helical structure according to claim 1 , wherein the polymer which exhibits the photoisomerization reaction comprises at least one of an azo-based polymer and a spiropyran-based polymer.

3 . The method for producing the organic helical structure according to claim 1 , wherein the step for forming the nanoscale organic helical structure on the surface of the polymer is repeated, and thereby a plurality of the nanoscale organic helical structure are formed bidimensionally on the surface of the polymer.

4 . The method for producing the organic helical structure according to claim 1 , wherein the optical vortex is circularly polarized light.

5 . The method for producing the organic helical structure according to claim 1 , wherein the total angular momentum J of the optical vortex is not 0.

6 . An organic helical structure wherein a nanoscale helical structure is formed on the surface of a polymer which exhibits a photoisomerization reaction.

Assignees

• Univ Chiba Nat Univ Corp

Inventors

• Omatsu Takashige
• Miyamoto Katsuhiko

Classifications

• C08J7/00 Primary

  Chemical treatment or coating of shaped articles made of macromolecular substances (coating with metallic material C23C; electrolytic deposition of metals C25) · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• B82Y40/00 Primary

  Manufacture or treatment of nanostructures · CPC title

• C08G73/02

  Polyamines · CPC title

• G02B27/286

  for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another (G02B5/3083 takes precedence; light guide coupling means utilising polarising elements G02B6/34) · CPC title