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Thermal analysis by a constant heat flow
Author(s) -
Steffens Ed.
Publication year - 1968
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1968.070121009
Subject(s) - enthalpy , thermodynamics , constant (computer programming) , heat flow , materials science , thermal , thermal analysis , flow (mathematics) , chemistry , mechanics , physics , computer science , programming language
A new method of and apparatus for thermal analysis is described, whereby the heat flow fed by the oven to the sample is kept constant as a function of time. The measurement gives the change of enthalpy in heating or cooling the sample. From this enthalpy–temperature relationship quantitative thermodynamic results are easily obtained. Transitions of first and second order in polymers can be measured in one run.