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Proceedings Paper

Synthesis and optical properties of chiral helical polycarbodiimides
Author(s): Qingbin Xue; Tatsumi Kimura; Takashi Fukuda; Satoru Shimada; Hiro Matsuda
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Paper Abstract

Chiral helical polymethylphenylethylcarbodiimides (Poly-PhEMCDI) and polymethylcyclohexylethylcarbodiimides (Poly-ChEMCDI) have been synthesized by insertion polymerization of corresponding monomeric carbodiimide using copper complex as initiator. Their circular dichroism, optical rotation power induced by ordered rigid main chain helical structure in solution and casting films were obtained and molecular weight dependent circular dichroism were studied. Primary results about Second Harmonic Generation (SHG) of casting films of polycarbodiimides prepared by different solvents were measured and chloroform was the best solvent to prepare casting films with preferential orientation of molecular helical structure. Polycarbodiimides can form lyotropic liquid crystal in chloroform, THF solution etc.

Paper Details

Date Published: 12 December 2002
PDF: 8 pages
Proc. SPIE 4799, Liquid Crystals VI, (12 December 2002); doi: 10.1117/12.453300
Show Author Affiliations
Qingbin Xue, National Institute of Advanced Industrial Science and Technology (Japan)
Tatsumi Kimura, National Institute of Advanced Industrial Science and Technology (Japan)
Takashi Fukuda, National Institute of Advanced Industrial Science and Technology (Japan)
Satoru Shimada, National Institute of Advanced Industrial Science and Technology (Japan)
Hiro Matsuda, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 4799:
Liquid Crystals VI
Iam-Choon Khoo, Editor(s)

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