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Poly( L ‐alanine): Specific heat measurements at low temperatures (1.8–20°K) and one‐dimensionality
Author(s) -
Finegold Leonard,
Cude Jesse L.
Publication year - 1972
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1972.360110314
Subject(s) - chemistry , polymer , polyethylene , alanine , specific heat , curse of dimensionality , heat capacity , thermodynamics , debye model , analytical chemistry (journal) , organic chemistry , biochemistry , amino acid , physics , machine learning , computer science
Low‐temperature specific heat measurements have been made on random poly( L ‐alanine) (Pilot). The effective one‐dimensional (intra‐molecular polymeric) Debye temperature is 323°K, and the corresponding three‐dimensional temperature is 54°K. An anomaly, similar to that seen in polyethylene and other high polymers, is observed. The method will be a useful tool for the study of low‐frequency vibrations in polypeptides.