Oxidative Aging of Natural Rubber Vulcanizates. Part III. Crosslink Scission in Monosulfidic Networks
1969 ◽
Vol 42
(3)
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pp. 924-935
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Keyword(s):
Abstract A natural rubber vulcanizate containing almost entirely monosulfidic crosslinks was oxidized in oxygen and with tert-butyl hydroperoxide. The changes in physical properties due to oxidation were followed by stress—strain measurements, and the changes in chemical structure were investigated with chemical probes, and by spectroscopic methods. The results show that when the oxidized vulcanizates are heated at 75° C, the monosulfidic crosslinks are broken, that crosslinks containing two sulfur atoms are formed, and that conjugated diene and triene structures are introduced into the main polyisoprene chains.
1997 ◽
Vol 29
(4)
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pp. 270-289
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Keyword(s):
2013 ◽
Vol 812
◽
pp. 138-144
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2007 ◽
Vol 105
(4)
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pp. 2396-2406
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Keyword(s):
1967 ◽
Vol 11
(11)
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pp. 2201-2214
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1949 ◽
Vol 22
(3)
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pp. 812-819
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2013 ◽
Vol 32
(6)
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pp. 1135-1144
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Keyword(s):
1968 ◽
Vol 12
(2)
◽
pp. 295-307
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2012 ◽
Vol 51
(10)
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pp. 1904-1920
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