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Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers

Empat siri baru hablur cecair dimer tak simetri yang berdasarkan dibenzilidinahidrazina, N-{4[10-(16-desiloksifenilimino) metil)fenoksi] alkiloksiben zilidina}-N'-(4'-desiloksibenzilidina)hidrazina (SB-(CH2)n-HZ), N-{4[10-(16-desilok sifenildiazenil)fenoksi]alkiloksibenzilidina}-N'...

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Main Author: Abd Rani, Umairah
Format: Thesis
Language:English
Published: 2016
Subjects:
QD1-999 Chemistry
Online Access:http://eprints.usm.my/31994/1/UMAIRAH_BINTI_ABD_RANI_24%28NN%29.pdf
http://eprints.usm.my/31994/
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spelling my.usm.eprints.31994 http://eprints.usm.my/31994/ Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers Abd Rani, Umairah QD1-999 Chemistry Empat siri baru hablur cecair dimer tak simetri yang berdasarkan dibenzilidinahidrazina, N-{4[10-(16-desiloksifenilimino) metil)fenoksi] alkiloksiben zilidina}-N'-(4'-desiloksibenzilidina)hidrazina (SB-(CH2)n-HZ), N-{4[10-(16-desilok sifenildiazenil)fenoksi]alkiloksibenzilidina}-N'-(4'-desiloksibenzilidina) hidrazine (A Z-(CH2)n-HZ), N-[4-{12-[18-((S)-(-)-23-metilbutiloksi)karbonilfenil]fenoksi}alkilok sibenzilidina]-N'-(4'-desiloksibenzilidina)hidrazina (BP-(CH2)n-HZ) dan N-(4-alkil oksibenzilidina)-N'-[4'-(kolesteriloksikarbonil)alkiloksibenzilidina]hidrazina (Chol- (CH2)m-HZ-(CH2)n) telah disintesis dan dicirikan. Kesemua dimer ini mengandungi dibenzilidinahidrazina sebagai salah satu kumpulan mesogenik dan berbeza antara satu sama lain dari segi cabang sisi dan panjang spaser. Struktur molekul bagi dimer tersebut telah dijelaskan oleh analisis CHN, spektroskopi FT-IR, 1D dan 2D-NMR. Ciri hablur cecair dimer ini telah dikaji dengan menggunakan POM, DSC dan XRD. Four new series of non-symmetric dibenzylidenehydrazine-based liquid crystal dimers, N-{4[10-(16-decyloxyphenylimino)methyl)phenoxy] alkyloxybenzy lidene}-N'-(4'-decyloxybenzylidene)hydrazines (SB-(CH2)n-HZ), N-{4[10-(16-decyl oxyphenyldiazenyl)phenoxy]alkyloxybenzylidene}-N'-(4'-decyloxybenzylidene) hyd razines (AZ-(CH2)n-HZ), N-[4-{12-[18-((S)-(-)-23-methylbutyloxy)carbonylphenyl] phenoxy} alkyloxybenzylidene]-N'-(4'-decyloxybenzylidene) hydrazines (BP-(CH2)n -HZ) and N-(4-alkylxybenzylidene)-N'-[4'-(cholesteryloxycarbonyl)alkyloxybenzylid ene]hydrazines (Chol-(CH2)m-HZ-(CH2)n) had been synthesised and characterised. All dimers incorporated dibenzylidenehydrazine as one of the mesogenic arms and differ in terms of the other side arms and spacer parity. The molecular structures of these dimers were elucidated by CHN, FT-IR, 1D and 2D-NMR spectroscopy. Their liquid crystalline properties were investigated using POM, DSC and XRD. 2016-02 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/31994/1/UMAIRAH_BINTI_ABD_RANI_24%28NN%29.pdf Abd Rani, Umairah (2016) Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic QD1-999 Chemistry
spellingShingle QD1-999 Chemistry
Abd Rani, Umairah
Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
description Empat siri baru hablur cecair dimer tak simetri yang berdasarkan dibenzilidinahidrazina, N-{4[10-(16-desiloksifenilimino) metil)fenoksi] alkiloksiben zilidina}-N'-(4'-desiloksibenzilidina)hidrazina (SB-(CH2)n-HZ), N-{4[10-(16-desilok sifenildiazenil)fenoksi]alkiloksibenzilidina}-N'-(4'-desiloksibenzilidina) hidrazine (A Z-(CH2)n-HZ), N-[4-{12-[18-((S)-(-)-23-metilbutiloksi)karbonilfenil]fenoksi}alkilok sibenzilidina]-N'-(4'-desiloksibenzilidina)hidrazina (BP-(CH2)n-HZ) dan N-(4-alkil oksibenzilidina)-N'-[4'-(kolesteriloksikarbonil)alkiloksibenzilidina]hidrazina (Chol- (CH2)m-HZ-(CH2)n) telah disintesis dan dicirikan. Kesemua dimer ini mengandungi dibenzilidinahidrazina sebagai salah satu kumpulan mesogenik dan berbeza antara satu sama lain dari segi cabang sisi dan panjang spaser. Struktur molekul bagi dimer tersebut telah dijelaskan oleh analisis CHN, spektroskopi FT-IR, 1D dan 2D-NMR. Ciri hablur cecair dimer ini telah dikaji dengan menggunakan POM, DSC dan XRD. Four new series of non-symmetric dibenzylidenehydrazine-based liquid crystal dimers, N-{4[10-(16-decyloxyphenylimino)methyl)phenoxy] alkyloxybenzy lidene}-N'-(4'-decyloxybenzylidene)hydrazines (SB-(CH2)n-HZ), N-{4[10-(16-decyl oxyphenyldiazenyl)phenoxy]alkyloxybenzylidene}-N'-(4'-decyloxybenzylidene) hyd razines (AZ-(CH2)n-HZ), N-[4-{12-[18-((S)-(-)-23-methylbutyloxy)carbonylphenyl] phenoxy} alkyloxybenzylidene]-N'-(4'-decyloxybenzylidene) hydrazines (BP-(CH2)n -HZ) and N-(4-alkylxybenzylidene)-N'-[4'-(cholesteryloxycarbonyl)alkyloxybenzylid ene]hydrazines (Chol-(CH2)m-HZ-(CH2)n) had been synthesised and characterised. All dimers incorporated dibenzylidenehydrazine as one of the mesogenic arms and differ in terms of the other side arms and spacer parity. The molecular structures of these dimers were elucidated by CHN, FT-IR, 1D and 2D-NMR spectroscopy. Their liquid crystalline properties were investigated using POM, DSC and XRD.
format Thesis
author Abd Rani, Umairah
author_facet Abd Rani, Umairah
author_sort Abd Rani, Umairah
title Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
title_short Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
title_full Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
title_fullStr Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
title_full_unstemmed Syntheses, Characterisation And Mesophase Investigation Of A New Class Of Hydrazine-Based Liquid Crystal Dimers
title_sort syntheses, characterisation and mesophase investigation of a new class of hydrazine-based liquid crystal dimers
publishDate 2016
url http://eprints.usm.my/31994/1/UMAIRAH_BINTI_ABD_RANI_24%28NN%29.pdf
http://eprints.usm.my/31994/
_version_ 1643707530618077184
score 13.211869

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