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The Application of MTDSC to Polymer Melting

Reading and D. Hourston (eds.). Theory and Practice of Modulated Temperature Differential Scanning Calorimetry, 217-320. [Pg.217]

The strain that hinders the motion in the amorphous phases is transmitted by the polymer molecules that traverse large parts of the sample and set up a global, non-equilibrium structure. If these strained molecules were immobilised during mechanical drawing of the sample, as is necessary in the production of films or fibres, the amorphous areas become oriented and reduce the entropy (degree of disorder). Because melting is governed by the entropy of fusion AS = AHIT and the heat of fusion, AH, is [Pg.218]

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Application to Polymers

MTDSC

Melted polymer

Polymer melts

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