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RADIOCHEMICAL YIELDS OF GRAFT POLYMERIZATION REACTIONS OF CELLULOSE

Abstract

The preparation of radioinduced graft polymers of cotton cellulose, while retaining the fibrous nature and high molecular weight of the cellulose, depended primarily on the radiochemical yields of cellulose reactions and of graft polymerization reactions. Yields of the initial major molecular changes in cellulosic polymer indicated that, in the case of scission of the molecule and carboxyl group formation, chain reactions were not initiated by radiation; however, in the case of carbonyl group formation chain reactions were initiated but quickly terminated. Generally, experimental procedures, used in graft polymerization reactions, were: simultaneous irradiation reactions, that is, application of monomers or solutions of monomers to cellulose or chemically modified celluloses, then irradiation; and post-irradiation reactions, that is, irradiation of cellulose or chemically modified celluloses, then after removal from the field of radiation, contacting the irradiated cellulose with monomer. Some of the most important factors influencing the radiochemical yields of graft polymerization reactions, of styrene and acrylonitrile onto cellulose were: concentration of monomer in treating solution; solvent; ratio of monomer solution to cellulose; prior chemical modification of cellulose; and absence of oxygen, particularly in post-irradiation reactions. Experimental data are presented, and the direct and indirect effects of Co/sup 60/ gamma radiation on these  More>>
Publication Date:
Dec 15, 1963
Product Type:
Conference
Report Number:
CONF-37-5; AED-Conf-63-248-3
Reference Number:
NSA-18-010176
Resource Relation:
Conference: American Chemical Society Southwest Regional Meeting - Polymer and Polymerization Symposium, Dallas, TX (United States) 5-7 Dec 1963
Subject:
CHEMISTRY; ACRYLIC ACID; CELLULOSE; CHEMICAL REACTIONS; CHEMICALS; COBALT 60; CONFIGURATION; COTTON; CYANIDES; DECOMPOSITION; DIAGRAMS; EFFICIENCY; FIBERS; GAMMA RADIATION; GAMMA SOURCES; GASES; IRRADIATION; MEASURED VALUES; MOLECULES; OPERATION; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN; POLYMERIZATION; POLYMERS; PREPARATION; QUANTITY RATIO; RADIATION CHEMISTRY; REACTION KINETICS; SOLUTIONS; SOLVENTS; STYRENE; TABLES; TEXTILES; VARIATIONS; WEIGHT
Sponsoring Organizations:
Sponsor not identified
OSTI ID:
4879394
Research Organizations:
Dept. of Agriculture, New Orleans, LA (United States). Southern Regional Research Lab.
Country of Origin:
United States
Language:
English
Submitting Site:
DTIE
Size:
Pages: 23
Announcement Date:
Mar 29, 2013

Citation Formats

Arthur, Jr, J C, and Blouin, F A. RADIOCHEMICAL YIELDS OF GRAFT POLYMERIZATION REACTIONS OF CELLULOSE. United States: N. p., 1963. Web.
Arthur, Jr, J C, & Blouin, F A. RADIOCHEMICAL YIELDS OF GRAFT POLYMERIZATION REACTIONS OF CELLULOSE. United States.
Arthur, Jr, J C, and Blouin, F A. 1963. "RADIOCHEMICAL YIELDS OF GRAFT POLYMERIZATION REACTIONS OF CELLULOSE." United States.
@misc{etde_4879394,
title = {RADIOCHEMICAL YIELDS OF GRAFT POLYMERIZATION REACTIONS OF CELLULOSE}
author = {Arthur, Jr, J C, and Blouin, F A}
abstractNote = {The preparation of radioinduced graft polymers of cotton cellulose, while retaining the fibrous nature and high molecular weight of the cellulose, depended primarily on the radiochemical yields of cellulose reactions and of graft polymerization reactions. Yields of the initial major molecular changes in cellulosic polymer indicated that, in the case of scission of the molecule and carboxyl group formation, chain reactions were not initiated by radiation; however, in the case of carbonyl group formation chain reactions were initiated but quickly terminated. Generally, experimental procedures, used in graft polymerization reactions, were: simultaneous irradiation reactions, that is, application of monomers or solutions of monomers to cellulose or chemically modified celluloses, then irradiation; and post-irradiation reactions, that is, irradiation of cellulose or chemically modified celluloses, then after removal from the field of radiation, contacting the irradiated cellulose with monomer. Some of the most important factors influencing the radiochemical yields of graft polymerization reactions, of styrene and acrylonitrile onto cellulose were: concentration of monomer in treating solution; solvent; ratio of monomer solution to cellulose; prior chemical modification of cellulose; and absence of oxygen, particularly in post-irradiation reactions. Experimental data are presented, and the direct and indirect effects of Co/sup 60/ gamma radiation on these reactions are discussed. (auth)}
place = {United States}
year = {1963}
month = {Dec}
}