Premium
Rate effects in the measurement of polymer transitions by differential scanning calorimetry
Author(s) -
Strella S.,
Erhardt P. F.
Publication year - 1969
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.1969.070130704
Subject(s) - differential scanning calorimetry , materials science , polymer , thermodynamics , heat transfer , calorimetry , analytical chemistry (journal) , chemistry , composite material , chromatography , physics
Depending on heating rate, differences as large as 15°C in polymer transition temperatures may be observed in DCS measurements. A heat transfer analysis of the method shows that this rate dependence is a result of a lag in the heat path to the test sample and lag in heat transfer within the sample. Experiments confirmed the analysis. Methods for obtaining the correct values of transition temperatures are given.