Synthesis and characterization of banana-shaped liquid crystals

Chua, Mei Chee (2011) Synthesis and characterization of banana-shaped liquid crystals. [Final Year Project Report] (Unpublished)

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Abstract

A series of banana-shaped compounds based on chalcone were synthesized. The initial step involved preparation of alkoxyacetophenone 3a-c from 4-hydroxyacetophenone with alkyl bromide using Williamson ether synthesis. 4-Alkoxyacetophenone 3a-c undergoes Claisen-Schmidt condensation with 4-hydroxybenzaldehyde to produce hydroxyl chalcone 4a-c. The hydroxyl chalcone further reacted with isophthaloyl dichloride to form banana-shaped compound 5a-c. The synthesized compound was characterized by IH and I3C Nuclear Magnetic Resonance (NMR), and Fourier Transform Infrared (FTIR). The liquid crystal property was characterized using polarizing optical microscopy (POM) and different scanning calorimetry (DSC).

Item Type: Final Year Project Report
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2011.
Uncontrolled Keywords: chalcone, isophthaloyl dichloride, liquid crystal, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak
Subjects: Q Science > QD Chemistry
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Saman
Date Deposited: 04 Apr 2018 03:34
Last Modified: 04 Apr 2018 03:35
URI: http://ir.unimas.my/id/eprint/19996

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