Reversible local melting in polymer crystals | Zendy

Okazaki Iwao | Zendy; Wunderlich Bernhard | Zendy

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Reversible local melting in polymer crystals

Author(s) -

Okazaki Iwao,

Wunderlich Bernhard

Publication year - 1997

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.1997.030180407

Subject(s) - differential scanning calorimetry , nucleation , materials science , recrystallization (geology) , isothermal process , polymer , melting temperature , poly ethylene , atmospheric temperature range , melting point depression , melting point , thermodynamics , ethylene , polymer chemistry , composite material , chemistry , organic chemistry , paleontology , catalysis , physics , biology

The melting of poly(ethylene terephthalate) is analyzed by quasi‐isothermal, temperature‐modulated differential scanning calorimetry. The measurement is done by sinusoidally changing the temperature in the melting range (± 1.0 K). In the melting range a small portion of the sample melts reversibly. This observation is taken as a direct observation of the reversibility of melting of specific macromolecules as long as they are melting only partially and need no molecular nucleation for recrystallization.

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