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Melting points of cellulose nitrates
Author(s) -
Colborne R. S.
Publication year - 1968
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.1968.070120414
Subject(s) - cellulose , diluent , enthalpy of fusion , melting point , fusion , polymer , materials science , thermodynamics , polymer chemistry , chemistry , organic chemistry , composite material , physics , linguistics , philosophy
Fresh determinations and estimations of the melting temperatures of cellulose nitrates have been found to be much lower than previously reported and to be in line with those of other cellulose derivatives, varying from 200°C. for the dinitrate to 280°C. for a sample approaching the trinitrate in composition. The heat of fusion of at least 3000 cal./unit is also similar to values of other cellulose derivatives. The paper contains some observations on the applicability of Flory's theory of the effect of diluents on the crystalline melting temperature of polymers.