Gelation in Poly(3-alkylthiophene) Derivatives for Morphology Research
碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系 === 100 === In this study, the Grignard metathesis method was applied to synthesize regioregular Poly (3-alkylthiophene) (rr-3PAT) which was brominated with N-Bromosuccinimide (NBS) to obtain two different brominated Poly-3-bromo-4-alkylthiophene (P3AT-Br) and mixed...
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| Format: | Others |
| Language: | zh-TW |
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| Online Access: | http://ndltd.ncl.edu.tw/handle/01941083899323058903 |
| Summary: | 碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系 === 100 === In this study, the Grignard metathesis method was applied to synthesize regioregular Poly (3-alkylthiophene) (rr-3PAT) which was brominated with N-Bromosuccinimide (NBS) to obtain two different brominated Poly-3-bromo-4-alkylthiophene (P3AT-Br) and mixed with rr-P3AT in different proportions to form a thermally reversible gel.
Charactented by 1H-NMR spectroscopy, the regioregular was up to 89-99% and different degree of brominated P3AT-Br was obtained. From UV-visible absorption spectrometer (UV-vis) we learned that P3AT-Br absorption peaks hare significantly widened to form a gel with red shift and thermal gravimetric analyzer (TGA) and differential scanning calorimetry (DSC) analysis were weed to detect the decomposition temperatures (Td) and glass transition temperature (Tg), respectively. From the calculation of △H conversion P3HT:P3HT-Br 32% gel in 2:1 owns better crystallization rate of change of 59.5% good thermal stability.
Grazing incidence X-Ray Diffraction (GID-XRD) results show that the addition a small amount of P3HT-Br can contribute the increased crystallinity in the gel of the P3HT: P3HT-Br 32% with a 2:1 crystalline. In addition, atomic force microscopy (AFM) weed to measure the surface morphology tells that the gelation allows the molecules to arrange in a more uniform crystalline. Expected applications include Organic Thin Film Transistors (OTFTs)、Organic/polymer Light Emitting Diode (OLED/PLED)、Organic Solar Cells (OSCs).
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