In this study, the polar structure of a rigid /spl alpha/-helical polypeptide which is well known as a cholesteric liquid crystal polymer is investigated. The polypeptide has a large dipole moment along the helical axis by adding the dipole moment of peptide groups. On analogy of the copolyester, it is expected that the polypeptic form a cholesteric mesophase with polar structure.
Enhancement of second harmonic generation using selective reflection of polar rod-like molecules
1999-01-01
97464 byte
Conference paper
Electronic Resource
English
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