Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit
A series of intermediates were synthesised via azo coupling reactions to give the alkylated compounds with one azo linking unit, 2a-c and with two azo linking units, 5a-c. These intermediates were subjected to further monosubstitution and hexasubstitution reactions with cyclotriphosphazene to produc...
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| Format: | Thesis |
| Language: | English |
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2017
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| Online Access: | http://eprints.usm.my/45410/ |
| Abstract | Abstract here |
| _version_ | 1855632390349651968 |
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| author | Loh, Miyeko Lotus Leh Ching |
| author_facet | Loh, Miyeko Lotus Leh Ching |
| author_sort | Loh, Miyeko Lotus Leh Ching |
| description | A series of intermediates were synthesised via azo coupling reactions to give the alkylated compounds with one azo linking unit, 2a-c and with two azo linking units, 5a-c. These intermediates were subjected to further monosubstitution and hexasubstitution reactions with cyclotriphosphazene to produce a series of final compounds 7a-f. These compounds were characterised using FT-IR (Fourier Transform Infrared), 1D and 2D NMR (Nuclear Magnetic Resonance) spectroscopy and CHN elemental analysis. Intermediates 2d-f and 4a-c were found to be mesogenic with nematic and smectic phases, as determined under the POM (Polarised Optical Microscopy). |
| first_indexed | 2025-10-17T08:27:07Z |
| format | Thesis |
| id | usm-45410 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2025-10-17T08:27:07Z |
| publishDate | 2017 |
| record_format | EPrints |
| record_pdf | Restricted |
| spelling | usm-454102019-09-13T01:22:11Z http://eprints.usm.my/45410/ Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit Loh, Miyeko Lotus Leh Ching QD1-999 Chemistry A series of intermediates were synthesised via azo coupling reactions to give the alkylated compounds with one azo linking unit, 2a-c and with two azo linking units, 5a-c. These intermediates were subjected to further monosubstitution and hexasubstitution reactions with cyclotriphosphazene to produce a series of final compounds 7a-f. These compounds were characterised using FT-IR (Fourier Transform Infrared), 1D and 2D NMR (Nuclear Magnetic Resonance) spectroscopy and CHN elemental analysis. Intermediates 2d-f and 4a-c were found to be mesogenic with nematic and smectic phases, as determined under the POM (Polarised Optical Microscopy). 2017-07 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/45410/1/MIYEKO%20LOTUS%20LOH%20LEH%20CHIING.pdf Loh, Miyeko Lotus Leh Ching (2017) Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit. Masters thesis, Universiti Sains Malaysia. |
| spellingShingle | QD1-999 Chemistry Loh, Miyeko Lotus Leh Ching Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| thesis_level | Master |
| title | Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| title_full | Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| title_fullStr | Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| title_full_unstemmed | Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| title_short | Synthesis, Characterisation And Determination Of Mesophase Transition Of Cyclotriphosphazene Derivatives With Azo Linking Unit |
| title_sort | synthesis characterisation and determination of mesophase transition of cyclotriphosphazene derivatives with azo linking unit |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/45410/ |
| work_keys_str_mv | AT lohmiyekolotuslehching synthesischaracterisationanddeterminationofmesophasetransitionofcyclotriphosphazenederivativeswithazolinkingunit |