Open AccessSolid-state phase transition in n-alkanes of different parity
Author(s) -
S A Gureva,
A. K. Borisov,
V. A. Marikhin,
V. M. Egorov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2086/1/012182
Subject(s) - phase transition , lamellar structure , crystallography , materials science , lamella (surface anatomy) , kinetics , phase (matter) , chemistry , thermodynamics , organic chemistry , physics , quantum mechanics , composite material
The kinetics of the first-order solid-state structural transition in monodisperse n-alkanes samples of tricosane C 23 H 48 and tetracosane C 24 H 50 was studied by DSC and FTIR spectroscopy. The initial nuclei location of the new phase was revealed. The process of crystal structure rearrangement is initiated in the interlayers between neighboring lamellar for odd tricosane, while the nanonuclei in even tetracosane arise in the crystalline lamella cores. Thus, the influence of the number evenness of carbon atoms in the n-alkanes chains on the first-order structural phase transition has been proved.