Attaching soft long side chain on conjugated polymers will form liguid cystal structure. Our research is to synthesis the polypyrrole with alkyl chains on nitrogen site and carbon site and observe the effects.
We observe the phase transition by X-ray and DSC. But it is hrad to observe because of its absorbing light. Between observing, we just can find the liguid crystal transition on the polypyrrole with octadecane alkyl side chain on nitrogen site. Besides, we can find the 2.8Å and 3.2Å peaks
By shearing and solvent casting. Such a phenomenon is common in conjugated polymers. But it is hard to explain.
Besides, substituted on different sites will bring different results. Substituted on nitrogen site will lead to bigger d-sapcing than substituted on carbon site. This is because of the difference on co-planity. By the correlation function, we can realize that longer side chain, bigger fluctuation, but better layer structures.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0718100-165206 |
| Date | 18 July 2000 |
| Creators | Shih, Tong-Cheng |
| Contributors | An-Chung Su, Ming Chen, Shou-An Chen, Jin-Long Hong |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718100-165206 |
| Rights | unrestricted, Copyright information available at source archive |
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