Synthesis and characterization of rod-coil block copolymer via end-functionalized conducting polymer
Date Issued
2005
Date
2005
Author(s)
Chen, Meng-Hui
DOI
zh-TW
Abstract
This thesis describes a way to synthesize rod-coil block copolymers consisting of Poly(3-Hexylthiophene) (P3HT) as rigid rod and Poly(2-Vinylpyridine) (P2VP) as flexible coil. In this study, we first synthesize a conducting polymer, P3HT, via Grignard metathesis method. And we functionalize the polymer chain end of P3HT into vinyl group. After characterize from 1H NMR spectroscopy, we use the end functionalized P3HT to proceed coupling reaction with P2VP anion.
The block copolymer is fully characterized with Gel permeation chromatography, UV-vis, PL, 1H NMR, MALDI-TOF-MS, TGA, DSC. From the results from spectroscopy we estimate the ratio of P2VP to P3HT is 5:3. And, images from transmission electron microscopy show that block copolymer is self-assembled into spherical structure.
Furthermore, we synthesis aldehyde terminated P3HT for the purpose to see if it exhibits better reactivity with P2VP anion than vinyl terminated P3HT.
Also, we synthesis sulfonated polythiophene, and observe the effect of self-doping on UV-vis spectrum.
Subjects
聚三己烷基噻吩
尾端官能基化
聚二乙烯吡啶
微相分離
磺酸化聚噻吩
自我添補
block copolymer
Poly(3-Hexylthiophene)
conducting polymer
end functionalized
Poly(2-Vinylpyridine)
micro-phase separation
sulfonated polythiophene
self-doping
Type
thesis
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