skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: MUTUAL RADIATION GRAFTING OF STYRENE ONTO CELLULOSE ACETATE (in Japanese)

Abstract

A study of the gamma -ray-induced mutual grafting of styrene onto cellulose acetate (combined acetic acid, 52.8%) showed that cellulose acetate enhances the rate of polymerization of styrene. Dilution of the monomer with benzene accelerates the polymerization, with a maximum effect occurring at 60 mole% styrene. Grafting efficiency increases as monomer concentration increases also with increasing total dose for benzene solution, but decreases for acetone and dimethyl formamide solutions. Graft copolymer was separated from both homopolymers by alternating repeated extractions with benzene and acetone as solvents. Molecular weights of polystyrene formed in different regions in the reaction system used were quite different from one another. They increased in the following order of polymerization sites: surrounding monomer solution phase < monomer solution inside the cellulose acetate film < grafting layer. Isolated graft copolymer was much richer in the styrene component, and soluble in tetrahydrofuran, dioxane, and dimethyl formamide, but insoluble in both benzene and acetone. Polystyrene grafted on acetyl groups and that on the rest of glucose units of the stock polymer were isolated, respectively, but alkali saponification and by acetolysis of the cellulose backbone. The grafted amounts of the respective products were not very different from each other. Apparently, graftingmore » did not take place predominantly on a specific part of the backbone polymer chain. (BBB)« less

Authors:
; ;
Publication Date:
Research Org.:
Osaka Univ.
Sponsoring Org.:
USDOE
OSTI Identifier:
4644965
NSA Number:
NSA-17-039129
Resource Type:
Journal Article
Journal Name:
Kogyo Kagaku Zasshi (Japan) Merged with Nippon Kagaku Zasshi to form Nippon Kagaku Kaishi
Additional Journal Information:
Journal Volume: Vol: 66; Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
Country unknown/Code not available
Language:
Japanese
Subject:
CHEMISTRY; ACETATES; ACETIC ACID; ACETOLYSIS; ACETONE; AMIDES; BENZENE; CELLULOSE; CONCENTRATION; DECOMPOSITION; DIOXANE; DISTRIBUTION; EFFICIENCY; FORMIC ACID; FURANS; GAMMA RADIATION; GLUCOSE; GRAFT POLYMERS; HETEROCYCLICS; HYDROLYSIS; HYDROXIDES; IRRADIATION; METHYL RADICALS; MOLECULAR WEIGHT; MOLECULES; POLYMERIZATION; POLYMERS; POLYSTYRENE; QUANTITY RATIO; RADIATION CHEMISTRY; RADIATION DOSES; REACTION KINETICS; SAPONIFICATION; SOLUBILITY; SOLUTIONS; SOLVENT EXTRACTION; SOLVENTS; STYRENE; SUGARS; VELOCITY; WEIGHT

Citation Formats

Sumitomo, H, Takamuku, S, and Hachihama, Y. MUTUAL RADIATION GRAFTING OF STYRENE ONTO CELLULOSE ACETATE. Country unknown/Code not available: N. p., 1963. Web. doi:10.1246/nikkashi1898.66.2_269.
Sumitomo, H, Takamuku, S, & Hachihama, Y. MUTUAL RADIATION GRAFTING OF STYRENE ONTO CELLULOSE ACETATE. Country unknown/Code not available. https://doi.org/10.1246/nikkashi1898.66.2_269
Sumitomo, H, Takamuku, S, and Hachihama, Y. 1963. "MUTUAL RADIATION GRAFTING OF STYRENE ONTO CELLULOSE ACETATE". Country unknown/Code not available. https://doi.org/10.1246/nikkashi1898.66.2_269.
@article{osti_4644965,
title = {MUTUAL RADIATION GRAFTING OF STYRENE ONTO CELLULOSE ACETATE},
author = {Sumitomo, H and Takamuku, S and Hachihama, Y},
abstractNote = {A study of the gamma -ray-induced mutual grafting of styrene onto cellulose acetate (combined acetic acid, 52.8%) showed that cellulose acetate enhances the rate of polymerization of styrene. Dilution of the monomer with benzene accelerates the polymerization, with a maximum effect occurring at 60 mole% styrene. Grafting efficiency increases as monomer concentration increases also with increasing total dose for benzene solution, but decreases for acetone and dimethyl formamide solutions. Graft copolymer was separated from both homopolymers by alternating repeated extractions with benzene and acetone as solvents. Molecular weights of polystyrene formed in different regions in the reaction system used were quite different from one another. They increased in the following order of polymerization sites: surrounding monomer solution phase < monomer solution inside the cellulose acetate film < grafting layer. Isolated graft copolymer was much richer in the styrene component, and soluble in tetrahydrofuran, dioxane, and dimethyl formamide, but insoluble in both benzene and acetone. Polystyrene grafted on acetyl groups and that on the rest of glucose units of the stock polymer were isolated, respectively, but alkali saponification and by acetolysis of the cellulose backbone. The grafted amounts of the respective products were not very different from each other. Apparently, grafting did not take place predominantly on a specific part of the backbone polymer chain. (BBB)},
doi = {10.1246/nikkashi1898.66.2_269},
url = {https://www.osti.gov/biblio/4644965}, journal = {Kogyo Kagaku Zasshi (Japan) Merged with Nippon Kagaku Zasshi to form Nippon Kagaku Kaishi},
number = ,
volume = Vol: 66,
place = {Country unknown/Code not available},
year = {1963},
month = {2}
}