林金福臺灣大學：材料科學與工程學研究所黃朝祥Huang, Chaung-ShiangChaung-ShiangHuang2007-11-262018-06-282007-11-262018-06-282005http://ntur.lib.ntu.edu.tw//handle/246246/55278本論文利用Phthalic anhydride在苯環側邊形成Phthalimide保護基，接著使用UV燈進行光溴化反應，合成2-phthalimido-1,4-bis(bromomethyl)-phenylene單體，再利用Gilch聚合法，成功聚合出具有醯胺及羧酸側基之Poly(2-(2- carboxylic acid-benzamido)-phenylenevinylene) (CBPPV)。CB-PPV為聚電解質，但可溶於有機溶劑中進行塗佈形成淡黃色薄膜。此carboxylic acid-benzamido側基造成UV與PL之強烈藍位移，降低CB-PPV在可見光範圍之吸收。另外，羧酸側基可達到近似於自摻雜效果，提高CB-PPV薄膜導電率到達10-6S/cm等級。因此，新合成之CB-PPV有機會製作成透明導電薄膜。另外，將發藍光的CB-PPV與紅光的MEH-PPV共聚合，比較各種比例共聚物之UV與PL性質。由初步研究顯示共聚物亦可能應用在太陽能電池。2-phthalimido-1,4-bis(bromomethyl)-phenylene monomer for a novel poly(2-(2-carboxylic acid-benzamido)- phenylenevinylene)(CB-PPV) was synthesized through the photo-bromination under UV exposure. CB-PPV has both amido and carboxylic acid side groups. Thus, CB-PPV is a polyelectrolyte, but can be dissolved into the organic solvents to form a light yellow thin film by spin-coating. The carboxylic acid-benzamido side group induces strong blue shift to the UV and PL spectra of PPV, and thus decreases the absorption in visible light. In addition, the carboxylic acid in side group exhibits a similar effect of self-doping. Accordingly, the conductivity of CB-PPV thin film can achieve an order of 10-6 S/cm. Therefore, the CB-PPV introduces a chance for fabricating a transparent conducting thin film. Besides, the copolymers of blue emissive CB-PPV and red emissive MEH-PPV in different composition ratios are synthesized and their photoluminescence properties are basically dependent on their compositions. Furthermore, the preliminary study reveals that the copolymers can also be applied to solar cells.Table of Contents Acknowledgment i Chinese abstract ii English abstract iii Table of contents iv Chapter 1 Introduction 1 1.1 Introduction to conjugated polymers 2 1.2 Principles of photoluminescence and electroluminescence 5 1.3 Application of conjugated polymers 6 Chapter 2 Literature Reviews 8 2.1 Poly(p-phenylenevinylene)(PPV) and its 8 derivatives 2.2 Amino-substituted PPVs 10 2.3 Motivation of synthesis poly(2-(2-carboxylic acid-benzamido)- phenylenevinylene)(CB-PPV) 11 Chapter 3 Experimental Procedures 13 3.1 Experimental apparatus and agents 13 3.1.1 Agents 13 3.1.2 Experimental apparatus 14 3.2 Synthesis of CB-PPV, MEH-PPV, and their copolymers 17 Chapter 4 Results and Discussion 25 4.1 Charaterization of CB-PPV, MEH-PPV, and their copolymers 25 4.1.1 NMR analysis 25 4.1.2 FT-IR analysis 28 4.2 Properties of CB-PPV 30 4.2.1 Solubility of CB-PPV 30 4.2.2 Thermal properties of CB-PPV 31 4.2.3 Conductivity properties of CB-PPV 32 4.2.4 Photoelectronic properties of CB-PPV 35 4.3 Properties of CBPPV-co-MEHPPV(CP) 40 4.3.1 Thermal properties of CP 41 4.3.2 Conductivity properties of CP 42 4.3.3 Photoelectronic properties of CP 44 Chapter 5 Conclusions 49 Notations 50 List of Figures 51 References 753422779 bytesapplication/pdfen-US光電高分子聚電解質鄰苯二甲酐CB-PPVMEH-PPVConjugated polymerPolyelectrolytePhthalic anhydridethesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/55278/1/ntu-94-R92527052-1.pdf