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Synthetic polymers controlled in spiral structure, host-guest compounds prepared by using the same, and processes for production of both

Foreign code F110003799
File No. E07107WO
Posted date Jul 5, 2011
Country United States of America
Application number 59945508
Gazette No. 20110144262
Gazette No. 8383717
Date of filing Mar 18, 2008
Gazette Date Jun 16, 2011
Gazette Date Feb 26, 2013
International application number JP2008000636
International publication number WO2008139674
Date of international filing Mar 18, 2008
Date of international publication Nov 20, 2008
Priority data
  • P2007-125098 (May 9, 2007) JP
  • 2008WO-JP00636 (Mar 18, 2008) WO
Title Synthetic polymers controlled in spiral structure, host-guest compounds prepared by using the same, and processes for production of both
Abstract (US8383717)
The invention provides a process for producing spiral polymers controlled in the direction of spiral winding easily from inexpensive general-purpose polymers; and spiral polymers controlled in the direction of spiral winding.
The invention relates to a process for the production of syndiotactic polymethacrylate- or polyacrylate-type spiral polymers controlled in the direction of spiral winding which comprises dissolving a syndiotactic polymethacrylate- or polyacrylate-type polymer and a chiral compound in a solvent preferably under heating, subjecting the obtained solution to cooling or concentration to form a solid matter, and separating the solid matter; and so on.
Scope of claims [claim1]
1. A syndiotactic polymethacrylate or syndiotactic polyacrylate spiral macromolecular compound that is controlled in the direction of winding of the spiral structure, wherein a syndiotactic triad content (rr content) is 80% or more.
[claim2]
2. The spiral macromolecular compound according to claim 1, wherein the syndiotactic polymethacrylate polymer is syndiotactic polymethyl methacrylate.
[claim3]
3. The spiral macromolecular compound according to claim 1 produced by the process comprising: dissolving in a solvent a syndiotactic polymethacrylate or syndiotactic polyacrylate polymer of which a syndiotactic triad content (rr content) is 80% or more and a chiral compound in an amount 10% or more by volume with respect to said solvent; and
subsequently subjecting the obtained solution to cooling or concentration to form a solid matter.
[claim4]
4. The spiral macromolecular compound according to claim 1, wherein absorption circular dichroism is observed by measuring the circular dichroism (CD).
[claim5]
5. The spiral macromolecular compound according to claim 1 having unidirectionally wound spiral structure wherein direction of winding is controlled in either clockwise or counterclockwise.
[claim6]
6. The spiral macromolecular compound according to claim 5, wherein the syndiotactic polymethacrylate polymer is syndiotactic polymethyl methacrylate (st-PMMA).
  • Inventor, and Inventor/Applicant
  • KAWAUCHI TAKEHIRO
  • KUMAKI JIRO
  • YASHIMA EIJI
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
IPC(International Patent Classification)
Reference ( R and D project ) ERATO YASHIMA Super-structured Helix AREA
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