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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: An experimental study of multiple steady states in a photopolymerization reactor
Author: Kuan, Chih-Ning
View Online: njit-etd1982-006
(xi, 194 pages ~ 4.2 MB pdf)
Department: Department of Chemical Engineering and Chemistry
Degree: Doctor of Engineering Science
Program: Chemical Engineering
Document Type: Dissertation
Advisory Committee: Huang, Ching-Rong (Committee chair)
Lewandowski, Gordon (Committee member)
McCormick, John E. (Committee member)
Kappraff, Jay (Committee member)
[illegible signature] (Committee member)
Date: 1982
Keywords: Polymers and polymerization.
Styrene.
Photochemistry.
Availability: Unrestricted
Abstract:

An experimental study of photosensitized free radical polymerization of styrene in both batch and continuous stirred tank reactors is presented. Each reactor was run under both adiabatic and isothermal conditions. Multiple steady states were investigated. Exact multiplicity and uniqueness criteria for the above systems were derived and a mathematical model developed to correlate the results.

For both adiabatic and isothermal continuous stirred tank reactors operating in the metastable state regions, the conversion and polymer molecular weight are greater than the corresponding lower steady state operations. At a given conversion level, the reaction time for both adiabatic and isothermal continuous stirred tank reactors is less than for an equivalent batch operation. This study indicates that for both isothermal and adiabatic continuous operations, the photopolymerization reactor can be accurately controlled through a simple on-off regulation of light intensity.


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