Synthesis of poly(styrene-butyl acrylate)/polyaniline latex by polymeric surfactant
Date Issued
2006
Date
2006
Author(s)
Chiang, Sin-Hao
DOI
zh-TW
Abstract
This research includes 3 parts. In first part, living free-radical polymerization method is applied. Use KPS as initiator and TEMPO as stable free radical to do polymerization and yield PSSNa with polydispersity less than 1.5. SSNa/KPS is studied under reaction conditions with different contents. Then attach a small length of double-bonded DVB to the end of PSSNa. Molecular weight、molecular wiegth distribution and conversion are measured with Gel Permeation Chromatography. The contents of DVB is measured with Transmitting Electron Microscope and Elemental Analyzer.
In second part, characteristic of double-bonded DVB is utilized so that PSSNa-DVB which is synthesized in first part could lead to emulsion polymerization with some monomers like Styrene、Butyl Acrylate etc. This results in various PSSNa-DVB/monomer ratio amphiphilic copolymer.
It is also studied that what will be changed if those materials different from PSSNa-DVB, such as PSSNa, PSSH and PSSH-DVB are used. Light scattering and Transmitting Electron Microscope are applied to observe the size and distribution of latex particle.
In the last part, because of the polymeric surfactant is negatively charged, and aniline is positively charged ,by the electrostatic attraction, conducting polymer, polyaniline, with the latex synthesized from the second part and result in core/shell complex latex particle. Then those factors are studied, include different latex, PH value and amount of aniline/APS ratio etc. Fourier Transform Infrared Spectrophotometer is applied to estimate the rato of oxidation state and reduction state. UV-visible is applied to observe the conformation. Transmitting Electron Microscope is applied to observe the size and distribution of latex particle and the cladding condition. Milliohm meter is applied to calculate the conductivity of thin film.
Subjects
穩定自由基反應
苯乙烯磺酸鈉
聚苯胺
stable free-radical polymerization
sodium styrenesulfonate
polyaniline
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-95-R93549013-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):f692f6592bb644d16b1e761973f23d0d