Synthesis, Characterization And Mesomorphic Properties Of Symmetric And Non-Symmetric Isoflavone Oligomers

Chan, Tze Nee (2012) Synthesis, Characterization And Mesomorphic Properties Of Symmetric And Non-Symmetric Isoflavone Oligomers. Masters thesis, Universiti Sains Malaysia.

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Abstract

Four new series of symmetric and non-symmetric isoflavone-based liquid crystal oligomers have been synthesized and characterized. These oligomers comprised of three series of non-symmetric dimers, namely 7-[{4-[4'-((S)-2''-methylbutyloxy)carbonylphenyl]phenoxy}alkyloxy]-3-(4'-decyloxyphenyl)-4H-1-benzopyran-4-ones (BP-n-I), 7-[{4-[4'-((S)-2''-methylbutyloxy)carbonyl phenyl]phenoxy}decyloxy]-3-(4'-substitutedphenyl)-4H-1-benzopyran-4-ones (BPI-R) and 7-[{4-[(4'-methoxyphenyl)diazenyl]phenoxy}alkyloxy]-3-(4'-methoxy phenyl)-4H-1-benzopyran-4-ones (AB-n-I), and a series of symmetric trimers: 1,3-bis{[3-(4'-decyloxyphenyl)-4H-1-benzopyran-4-one-7-oxy]alkyloxy}benzenes (BI-n-B). All oligomeric mesogens differ from one another in term of mesogenic moieties and spacer length.

Item Type: Thesis (Masters)
Subjects: Q Science > QD Chemistry > QD1-999 Chemistry
Divisions: Pusat Pengajian Sains Kimia (School of Chemistry) > Thesis
Depositing User: ASM Ab Shukor Mustapa
Date Deposited: 01 Jul 2019 06:46
Last Modified: 01 Jul 2019 06:46
URI: http://eprints.usm.my/id/eprint/44786

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