Keywords
cyclic dithiocarbonates, magnetic nanaparticles, dithiocarbonates
Abstract
Novel bifunctional five-membered cyclic dithiocarbonates (1,3-oxathiolane-2-thione)s were synthesized by the reactions of the corresponding bifunctional oxiranes (epoxides) with carbon disulfide at room temperature with lithium bromide as catalyst. Full characterization of these monomers was performed including elemental analysis, proton and carbon nuclear magnetic resonance (NMR) spectroscopy, gas chromatography-mass spectroscopy, and Fourier transmission infrared (FTIR) spectroscopy. The polyaddition polymerization of 1,3-oxathiolane-2-thione with 1,4-diaminobutane at room temperature resulted in a poly(thiourethane) material. The latter undergoes crosslinking due probably to the autooxidation of the product and formation of disulfide linkages. The five-membered cyclic dithiocarbonate, 5-decyl-1,3-oxathiolane-2-thione, was used a model to demonstrate the usefulness of five-membered cyclic dithiocarbonates for the preparation of compounds bearing thiol and thiocarbamate groups. This functionality was desired for use as metallic nanoparticle stabilizers. A thermal decomposition oxidation method was used to synthesize the magnetic iron nanoparticles. The stabilized magnetic nanoparticles were characterized by transmission electron microscopy (TEM) to determine the shape and the size of the nanoparticles. Energy dispersive spectroscopy (EDS) was used to analyze the composition of the magnetic nanoparticles.
Notes
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Graduation Date
2004
Semester
Fall
Advisor
Belfield, Kevin
Degree
Master of Science (M.S.)
College
College of Arts and Sciences
Department
Chemistry
Degree Program
Industrial Chemistry
Format
application/pdf
Identifier
CFE0000327
URL
http://purl.fcla.edu/fcla/etd/CFE0000327
Language
English
Release Date
January 2008
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
STARS Citation
Daoudi, Mohammed, "Synthesis And Polymerization Of Bifunctional Five-membered Cyclic Dithiocarbonates And Their Use As Stabilizers For Magnetic Nan" (2004). Electronic Theses and Dissertations. 176.
https://stars.library.ucf.edu/etd/176