A DSC-7 (Perkin–Elmer, Beaconsfield, UK), calibrated with
indium and cyclohexane, was used to analyse the samples (10–
15 mg) of known water contents. High pressure stainless steel pans
containing samples were scanned at a heating rate of 10 K min1
,
from 20 to 200 C depending on their moisture contents to
measure their glass transition temperatures. An empty stainless
steel pan was used as reference. Pyris software version 3.5 (Perkin–
Elmer Corporation, USA) was used to analyse the DSC traces. To
determine the glass transition temperature points were first chosen
on the DSC curves before and after the transition. The software then
extrapolates tangents from these points and the inflection point of
the curve. The onset and endset temperatures are the intersection
of these tangents.
A DSC-7 (Perkin–Elmer, Beaconsfield, UK), calibrated with
indium and cyclohexane, was used to analyse the samples (10–
15 mg) of known water contents. High pressure stainless steel pans
containing samples were scanned at a heating rate of 10 K min1
,
from 20 to 200 C depending on their moisture contents to
measure their glass transition temperatures. An empty stainless
steel pan was used as reference. Pyris software version 3.5 (Perkin–
Elmer Corporation, USA) was used to analyse the DSC traces. To
determine the glass transition temperature points were first chosen
on the DSC curves before and after the transition. The software then
extrapolates tangents from these points and the inflection point of
the curve. The onset and endset temperatures are the intersection
of these tangents.
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