Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968.
Arthur, Jett C. ; Hinojosa, Oscar ; Tripp, Verne W.
New York, NY [u.a.] : Wiley-Blackwell
Published 1969
New York, NY [u.a.] : Wiley-Blackwell
Published 1969
| ISSN: |
0021-8995
|
|---|---|
| Keywords: |
Chemistry ; Polymer and Materials Science
|
| Source: |
Wiley InterScience Backfile Collection 1832-2000
|
| Topics: |
Chemistry and Pharmacology
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Physics
|
| Notes: |
The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed.
|
| Additional Material: |
7 Ill.
|
| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798297804962004992 |
|---|---|
| addmaterial | 7 Ill. |
| autor | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| autorsonst | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| book_url | http://dx.doi.org/10.1002/app.1969.070130713 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM163603995 |
| iqvoc_descriptor_keyword | iqvoc_00000092:Materials |
| issn | 0021-8995 |
| journal_name | Journal of Applied Polymer Science |
| materialart | 1 |
| notes | The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed. |
| package_name | Wiley-Blackwell |
| publikationsjahr_anzeige | 1969 |
| publikationsjahr_facette | 1969 |
| publikationsjahr_intervall | 8034:1965-1969 |
| publikationsjahr_sort | 1969 |
| publikationsort | New York, NY [u.a.] |
| publisher | Wiley-Blackwell |
| reference | 13 (1969), S. 1497-1507 |
| schlagwort | Chemistry Polymer and Materials Science |
| search_space | articles |
| shingle_author_1 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| shingle_author_2 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| shingle_author_3 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| shingle_author_4 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. |
| shingle_catch_all_1 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. Chemistry Polymer and Materials Science Chemistry Polymer and Materials Science The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed. 0021-8995 00218995 Wiley-Blackwell |
| shingle_catch_all_2 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. Chemistry Polymer and Materials Science Chemistry Polymer and Materials Science The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed. 0021-8995 00218995 Wiley-Blackwell |
| shingle_catch_all_3 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. Chemistry Polymer and Materials Science Chemistry Polymer and Materials Science The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed. 0021-8995 00218995 Wiley-Blackwell |
| shingle_catch_all_4 | Arthur, Jett C. Hinojosa, Oscar Tripp, Verne W. Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. Chemistry Polymer and Materials Science Chemistry Polymer and Materials Science The effects of crystalline modification of cellulose and of water on the ESR spectra generated by the trapped free radicals in gamma-irradiated celluloses were investigated for cotton cellulose I, II, III, and IV, partially decrystallized cotton cellulose, ballmilled cotton cellulose, hydrocelluloses of cellulose III and IV, and ramie. On irradiation of the celluloses, free radicals were formed on the cellulose molecule, probably following dehydrogenation or chain cleavage. The free radicals located within the less ordered or amorphous regions of the cellulose reacted readily with water and were terminated. The radicals located within the more ordered regions of the celluloses could be made accessible to reaction with water by the interaction of the celluloses with solvents which caused dimensional changes in the cellulosic structure. In the highly ordered regions of the celluloses, even after long periods of time in solvents which caused large dimensional changes in the cellulosic structure, the trapped free radicals were not terminated by reaction with solvent or water. The ESR spectra of the irradiated, dried celluloses were determined at -160°C, the single-line spectra recorded had line widths of about 18-24 gauss. On the absorption of water by the irradiated celluloses, the ESR spectra changed and were dependent on the crystalline structure of the irradiated celluloses. The effects of different arrangements of the irradiated celluloses, as shown by their trapped radical spectra, particularly after interaction with water, were discussed. 0021-8995 00218995 Wiley-Blackwell |
| shingle_title_1 | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| shingle_title_2 | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| shingle_title_3 | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| shingle_title_4 | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| sigel_instance_filter | dkfz geomar wilbert ipn albert |
| source_archive | Wiley InterScience Backfile Collection 1832-2000 |
| timestamp | 2024-05-06T10:13:49.434Z |
| titel | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| titel_suche | Effect of crystalline structure on the trapped radical spectra of irradiated cellulosePaper presented in part at the IUPAC International Symposium on Macromolecular Chemistry, Toronto, Canada, September 3-6, 1968. |
| topic | V ZL U |
| uid | nat_lic_papers_NLM163603995 |