Measurement of crystallization in stretched rubber by rapid-passage NMR

Von Meerwall, E. ; Creel, R. B. ; Griffin, C. F. ; DiCato, E. ; Lin, F. T. ; Lin, F. M.

New York, NY [u.a.] : Wiley-Blackwell
Published 1977
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:
Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
_version_ 1798297807330738176
addmaterial 5 Ill.
autor Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
autorsonst Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
book_url http://dx.doi.org/10.1002/app.1977.070210605
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM163628394
iqvoc_descriptor_keyword iqvoc_00000092:Materials
issn 0021-8995
journal_name Journal of Applied Polymer Science
materialart 1
notes Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
package_name Wiley-Blackwell
publikationsjahr_anzeige 1977
publikationsjahr_facette 1977
publikationsjahr_intervall 8024:1975-1979
publikationsjahr_sort 1977
publikationsort New York, NY [u.a.]
publisher Wiley-Blackwell
reference 21 (1977), S. 1489-1497
schlagwort Chemistry
Polymer and Materials Science
search_space articles
shingle_author_1 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
shingle_author_2 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
shingle_author_3 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
shingle_author_4 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
shingle_catch_all_1 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
Measurement of crystallization in stretched rubber by rapid-passage NMR
Chemistry
Polymer and Materials Science
Chemistry
Polymer and Materials Science
Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
0021-8995
00218995
Wiley-Blackwell
shingle_catch_all_2 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
Measurement of crystallization in stretched rubber by rapid-passage NMR
Chemistry
Polymer and Materials Science
Chemistry
Polymer and Materials Science
Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
0021-8995
00218995
Wiley-Blackwell
shingle_catch_all_3 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
Measurement of crystallization in stretched rubber by rapid-passage NMR
Chemistry
Polymer and Materials Science
Chemistry
Polymer and Materials Science
Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
0021-8995
00218995
Wiley-Blackwell
shingle_catch_all_4 Von Meerwall, E.
Creel, R. B.
Griffin, C. F.
DiCato, E.
Lin, F. T.
Lin, F. M.
Measurement of crystallization in stretched rubber by rapid-passage NMR
Chemistry
Polymer and Materials Science
Chemistry
Polymer and Materials Science
Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene at elongations up to 720%, at temperatures between -100° and 100°C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow and a wide component was developed and applied. The results are interpreted in terms of the effects of a glass transition and strain-induced crystallinity and are in general agreement with results by other methods. The degree of crystallinity is found to increase strongly with strain (from zero for unstretched samples to 31% at elongations of 720% at room temperature), to increase with time, reaching equilibirium most rapidly in the most highly strained samples, and to decrease approximately linearly with temperature above about 20°C.
0021-8995
00218995
Wiley-Blackwell
shingle_title_1 Measurement of crystallization in stretched rubber by rapid-passage NMR
shingle_title_2 Measurement of crystallization in stretched rubber by rapid-passage NMR
shingle_title_3 Measurement of crystallization in stretched rubber by rapid-passage NMR
shingle_title_4 Measurement of crystallization in stretched rubber by rapid-passage NMR
sigel_instance_filter dkfz
geomar
wilbert
ipn
albert
source_archive Wiley InterScience Backfile Collection 1832-2000
timestamp 2024-05-06T10:13:51.857Z
titel Measurement of crystallization in stretched rubber by rapid-passage NMR
titel_suche Measurement of crystallization in stretched rubber by rapid-passage NMR
topic V
ZL
U
uid nat_lic_papers_NLM163628394