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Origin of the bimodal “melting” endotherm of α‐form crystallites in wool keratin
Author(s) -
Cao Jinan
Publication year - 1997
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/(sici)1097-4628(19970124)63:4<411::aid-app1>3.0.co;2-u
Subject(s) - endotherm , crystallite , wool , keratin , materials science , melting temperature , melting point , polymer chemistry , composite material , thermodynamics , differential scanning calorimetry , metallurgy , biology , physics , paleontology
The melting endotherm of α‐form crystallites in wool keratin appears often to be bimodal. The origin of the bimodal endotherm has been considered to correspond to the differential melting of the α‐form crystallites in the domains of ortho‐ and para‐cortical cells. An alternative interpretation is presented, in which the bimodal peak arises from the overlapping of the melting endotherm of α‐form crystallites and the thermal degradation of other wool histological components. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 411–415, 1997