Monitored with Fluorogenic
By Mark Stephen Frahn
Delft University Press
161 pages, Illustrated, 6 ½" x 9 ½"
$57.50 Paper Original
This is a Ph.D. dissertation. Polymers are large molecules formed by the linking together of many small molecular units known as monomers. Examples of such macromolecules can be found in nature; cellulose and amylase (polysaccharides constituting plant cell walls), hevea rubber or gutta percha (polyisprenes isolated from trees), and proteins and nucleic acids which are found in all living species. The synthesis of polymers from monomers is given the term polymerization. Generally, polymerization can occur by either a condensation (step) mechanism or an addition (chain) mechanism.
In the former a polymer is formed by the elimination of a small molecular byproduct or the polymer contains functional groups in its main-chain repeat unit. Examples include polyamide or polyurethane polymers. Addition polymerization on the other hand usually involves synthesis from monomers containing a carbon-carbon double- or triple-bond. Methods of polymerization include thermal or radiation-induced polymerization as well as catalyst-assisted polymerizations such as Ziegler-Natta and ring-opening metathesis (ROMP) polymerizations. In this thesis only addition polymerization induced by high-energy ionizing radiation will be reconsidered.
Contents include: An Introduction to Radiation-Induced Polymerization, Experimental Techniques, Materials, Monomer Conversion in Methyl Methacrylate, Monitoring the Radiation-Induced Bulk Polymerization of Methyl Methacrylate with N-(1-pyrene) Methacrylamide for Monitoring Radiation-Induced Polymerization, N-(2-anthracene) methacrylamide: A New Fluorogenic Probe Molecule for Monitoring In Situ the Radiation-Induced Polymerization of Methyl Methacrylate in Bulk and In Solution, Radiation-Induced Polymerization Monitored In Situ by Time-Resolved Fluorescence of Probe Molecules in Methyl Methacrylate, Time-Resolved Emission Spectra of Fluoroprobe and Maleimido-Fluoroprobe Before, During and After Sudden Vitrification of Radiation-Polymerized Methyl Methacrylate, Summary.
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