Accession Number:

ADA281437

Title:

Heterochiral Interactions in Molecular and Macromolecular Pairs of Liquid Crystals of (R)- and (S)-2-Fluoro-4-Methylpentyl 4'-(8-Vinyloxyoctyloxy) Biphenyl-4-Carboxylate Enantiomers

Descriptive Note:

Rept. no. 7

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MACROMOLECULAR SCIENCE

Personal Author(s):

• Percec, V.
• Oda, H.

Report Date:

1994-06-30

Pagination or Media Count:

45.0

Abstract:

Recently we initiated a research program to investigate chiral molecular recognition in both molecular and macromolecular pairs of enantiomeric and diastereomeric liquid crystals. The purpose of this research is to elucidate the mechanism of chiral recognition by investigating the relationship between molecular, macromolecular and supramolecular structure and the extent of manifestation of heterochiral recognition in various liquid crystalline phases. The main tool used in our studies consists of low molar mass mesogenic vinyl ethers and the corresponding homopolymers and copolymers prepared by living cationic polymerization. Living cationic polymerization produces polymers and copolymers with well defined molecular weight, composition, narrow molecular weight distribution and low chemical heterogeneity. Therefore, this technique is especially suitable for the synthesis of polymers used in chiral molecular recognition experiments

Descriptors:

• *METHYL RADICALS
• *POLYMERS
• *LIQUID CRYSTALS
• *ORGANIC COMPOUNDS
• *MACROMOLECULES
• *BIPHENYL
• *MOLECULAR STRUCTURE
• *HYDROCARBONS
• *FLUORINE
• CATIONS
• RECOGNITION
• HALOGENS
• MONOMERS
• ETHERS
• MOLECULAR WEIGHT
• TRANSITION TEMPERATURE
• PHASE
• INTERACTIONS
• SYNTHESIS

Subject Categories:

• Organic Chemistry
• Physical Chemistry
• Polymer Chemistry
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE