2003
DOI: 10.1016/s0040-6031(02)00392-1
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Influence of hydrogen bonding on the thermal behaviour of some amides and thioamides

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Cited by 12 publications
(5 citation statements)
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“…This can be attributed to thermal decomposition of the thioamide group leading to loss of H 2 S. Low-molar-mass thioamides are known to decompose, giving H 2 S and nitrile, at temperatures around 200 °C. 27 Thus, above 300 °C the polymer reverts to PIM-1, although thermal cross-linking may also occur. There is further weight-loss above 430 °C, which may be attributed to degradation of the backbone.…”
Section: ' Results and Discussionmentioning
confidence: 99%
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“…This can be attributed to thermal decomposition of the thioamide group leading to loss of H 2 S. Low-molar-mass thioamides are known to decompose, giving H 2 S and nitrile, at temperatures around 200 °C. 27 Thus, above 300 °C the polymer reverts to PIM-1, although thermal cross-linking may also occur. There is further weight-loss above 430 °C, which may be attributed to degradation of the backbone.…”
Section: ' Results and Discussionmentioning
confidence: 99%
“…Thioamide-PIM-1 powder shows a weight-loss of about 10% in the temperature range 190–350 °C. This can be attributed to thermal decomposition of the thioamide group leading to loss of H 2 S. Low-molar-mass thioamides are known to decompose, giving H 2 S and nitrile, at temperatures around 200 °C . Thus, above 300 °C the polymer reverts to PIM-1, although thermal cross-linking may also occur.…”
Section: Resultsmentioning
confidence: 99%
“…The question arises about the nature of hydrogen bonding, particularly about the observed blue shift of N CS H frequencies in the IR spectra upon H-bond formation. It has been stated that the νNH in the solid state of secondary amides and thioamides depends on the acidity (N CS H is more acidic than N CO H), the mass of the alkyl substituent, and the geometry of the molecule. , In the particular case of oxalyl derivatives, the NH stretching frequency is shifted to lower values as the weight of the entire (XC) 2 (NH) 2 (X = O, S) fragment increases. Thus, comparison among compounds of t Bu- and s Bu-triads, of identical molecular weight, allows estimating the effect of hydrogen bonding in the NH stretching frequency.…”
Section: Discussionmentioning
confidence: 99%
“…In contrast, carbon that is difficult to graphitize is called "non-graphitizable carbon." 24 These two types of carbon can be classified according to the original organic matter. Graphitizable carbon originates from materials with ordered crystal lattices such as coke and polyvinyl chloride.…”
Section: Discussionmentioning
confidence: 99%