Top > Search of International Patents > Polyisocyanide derivative having controlled helical main chain structure

Polyisocyanide derivative having controlled helical main chain structure

Foreign code F110003937
File No. E07103WO
Posted date Jul 7, 2011
Country EPO
Application number 06833885
Gazette No. 1956035
Gazette No. 1956035
Date of filing Dec 1, 2006
Gazette Date Aug 13, 2008
Gazette Date Jan 22, 2014
International application number JP2006324115
International publication number WO2007063994
Date of international filing Dec 1, 2006
Date of international publication Jun 7, 2007
Priority data
  • 2006JP324115 (Dec 1, 2006) WO
  • P2005-347943 (Dec 1, 2005) JP
  • P2006-238533 (Sep 4, 2006) JP
Title Polyisocyanide derivative having controlled helical main chain structure
Abstract The object is to provide: a method for producing a polymer having a stable right-handed or left-handed helical structure from a single type of monomer in a per-selective manner and controlling the proportion between a polymer having the right-handed helical structure and a polymer having the left-handed helical structure; and a polymeric material which can be used for the formation of any of the right-handed and left-handed helical structures.
Thus, disclosed are: a method for production of a polyisocyanide derivative having a stable helical main chain structure with a right-handed or left-handed helix or a mixture thereof from a single type of monomer by polymerizing an aromatic isocyanate having a substituent harboring a structure -CONH in the aromatic ring and a hydrophobic moiety having 6 or more carbon atoms in a polymerization solvent, wherein the direction of the helix depends on the polarity of the polymerization solvent; a poly( aromatic isocyanide) derivative produced by the method; and an aromatic isocyanide which is useful as a monomer for use in the production of the poly(aromatic isocyanide) derivative.
Scope of claims [claim1]
1. A polyaromatic isocyanide derivative that has a main chain structure with a stable right-handed or left-handed helical structure consisting of a single type of monomer, wherein the polyaromatic isocyanide derivative is represented by the general formula (1) as follows: (see diagramm) wherein, Ar represents a benzene ring, R **1 represents an aminocarbonyl group of an optically active alanine ester that is esterified with an alkyl group of 6 to 30 carbon atoms, the optically active alanine is any of levorotatory (S) or dextrorotatory (R) chiral body, and x is a positive number indicating the repeat of polyisocyanide-group.
[claim2]
2. The polyaromatic isocyanide derivative according to claim 1, wherein the polyaromatic isocyanide derivative is a polyaromatic isocyanide derivative which can form a hydrogen bond between the adjacent amide groups on a side chain.
[claim3]
3. A liquid crystalline composition comprising at least one of the polyaromatic isocyanide derivatives according to claim 1.
[claim4]
4. An aromatic isocyanide derivative which is represented by the following general formula (3): (see diagramm) wherein, Ar represents a benzene ring, R **1 represents an aminocarbonyl group of an optically active alanine ester that is esterified with an alkyl group of 6 to 30 carbon atoms, and the optically active alanine is any of levorotatory (S) or dextrorotatory (R) chiral body.
  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • OKOSHI KENTO
  • YASHIMA EIJI
  • ONOUCHI HISANARI
  • SAKURAI SHIN-ICHIRO
  • KAJITANI TAKASHI
IPC(International Patent Classification)
Reference ( R and D project ) ERATO YASHIMA Super-structured Helix AREA
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close