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Memory effects in polymers. I. Orientational memory in the molten state; its relationship to polymer structure and influence on recrystallization rate and morphology
Author(s) -
Khanna Y. P.,
Reimschuessel A. C.
Publication year - 1988
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.1988.070350824
Subject(s) - differential scanning calorimetry , polymer , recrystallization (geology) , materials science , crystallization , intermolecular force , crystallization of polymers , thermodynamics , chemical engineering , polymer chemistry , crystallography , composite material , molecule , chemistry , organic chemistry , paleontology , physics , biology , engineering
The influence of polymer structure on the orientational memory in the molten state has been studied by observing the crystallization behavior of the molten polymer through differential scanning calorimetry. It is shown that polymers with strong intermolecular forces (e.g., H‐bonding) retain the orientation memory even at temperatures above their equilibrium melting temperatures. The retained orientation memory of the polymer melt is shown to influence its recrystallization rate and the morphology.