RADIATION-INDUCED GRAFT POLYMERIZATION OF STYRENE ONTO CELLULOSE ESTERS.
Item
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Title
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RADIATION-INDUCED GRAFT POLYMERIZATION OF STYRENE ONTO CELLULOSE ESTERS.
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Identifier
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AAI8023740
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identifier
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8023740
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Creator
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TSAY, JIUNN.
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Contributor
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George Odian
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Date
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1980
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Language
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English
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Publisher
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City University of New York.
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Subject
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Chemistry, Polymer
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Abstract
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The kinetics of mutual radiation graft polymerization of styrene onto cellulose acetate butyrate (CAB-171-40) has been studied over a range of radiation intensities and monomer concentrations. The reaction was diffusion-free under the experimental conditions as shown by the independence of the grafting rate on film thickness. The dependence of the grafting rate on monomer concentration increases from 3/2- order to slightly greater than 5/2-order with increasing radiation intensity. The dependence of the grafting rate on radiation intensity decreases from 1/2-order to 0-order with decreasing monomer concentration. The results does not follow the usual kinetic expression for free radical chain polymerization, R(,p) = k(,p){lcub}M{rcub}(R(,i)/2k(,t))('1/2).;The preparation of the polymer film, and two possible mechanisms:;(1) Unusual initiation process.;(2) Combination of primary termination and bimolecular termination.;for these kinetic results are presented and discussed.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Chemistry
