Differential Thermal Analysis

Murphy, C. B.

doi:10.1021/ac60161a007

Cited by 24 publications

(1 citation statement)

References 129 publications

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“…Reviews discussing both older techniques and some applications to polymer studies appeared recently. [1][2][3][4] In most polymer applications discussed so far, the changes in heat balance have been measured against an inert reference body, preferably having thermal diffusivity characteristics which closely match those of the polymer. The technique presented in this paper differs from conventional procedure in that the inert reference body is eliminated.…”

Section: Introductionmentioning

confidence: 99%

Transition measurements using differential thermal analysis techniques

Dannis

1963

J. Appl. Polym. Sci.

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A system for the study of polymer structure by differential thermal analysis (DTA) techniques is presented. The need for an inert reference body has been eliminated by the use of a thermal delay within the sample itself. Typical data showing both first‐ and second‐order transition behavior for appropriate polymers are presented. The applicability of the technique to liquids is also shown. Three first‐order transitions have been found in trans‐1,4‐polybutadiene. The insoluble nature of high polymers in one another is again confirmed, even in those systems which disperse well. The latent heat of crystallization of cis‐1,4‐polybutadiene is about 2.1 kcal./mole.

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Section: Introductionmentioning

confidence: 99%

Transition measurements using differential thermal analysis techniques

Dannis

1963

J. Appl. Polym. Sci.

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Die differentialkalorimetrische Untersuchung der Reaktivität instabiler Verbindungen

Koch

1970

Angewandte Chemie

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Der Nachweis instabiler Zwischenprodukte bei chemischen, photo‐ und strahlenchemischen Lösungsreaktionen kann durch Anwendung thermoanalytischer Methoden stark erleichtert werden. Besondere Vorteile bietet die Differential‐Thermoanalyse (DTA), weil sie eine schnelle und einfache Untersuchung, gegebenenfalls ab ca. −150°C über einen großen Temperaturbereich gestattet. Dadurch werden unter Normalbedingungen unmeßbar schnell aufeinanderfolgende Prozesse wegen ihrer verschiedenen Temperaturabhängigkeit voneinander getrennt. Die hohe Empfindlichkeit der Methode erlaubt auch das Arbeiten in stark verdünnten Lösungen und damit die Beschränkung auf monomolekulare Prozesse. — Am Beispiel der photochemisch zugänglichen instabilen ozonidartigen Epidioxydihydrofurane wird die Eignung der Methode zur Bestimmung energetischer und kinetischer Daten gezeigt.

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The Differential Calorimetric Study of the Reactivity of Unstable Compounds

Koch

1970

Angew. Chem. Int. Ed. Engl.

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The detection of unstable intermediates in chemical, photochemical, and radiation-chemical reactions can be greatly facilitated by the use of thermoanalytical methods. Special advantages are offered by differential thermal analysis (DTA), since it permits fast, easy investigation, from about -150 " C upward in some cases, over a wide temperature range. In this way processes that under normal conditions follow one another with immeasurable rapidity can be separated on the basis of their different temperature dependences. The great sensitivity of the method also allows the use of very dilute solutions, so that the studies can be confined to unimolecular processes.The value of the method for the determination of energetic and kinetic data is illustrated by its application to the photochemically obtainable, unstable, ozonide-like epidioxydihydrofurans.

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Differential Thermal Analysis

Cited by 24 publications

References 129 publications

Transition measurements using differential thermal analysis techniques

Transition measurements using differential thermal analysis techniques

Die differentialkalorimetrische Untersuchung der Reaktivität instabiler Verbindungen

The Differential Calorimetric Study of the Reactivity of Unstable Compounds

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