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Partial specific volume of poly( D ‐β‐hydroxybutyrate) in chloroaliphatic solvents
Author(s) -
Bakoš Dušan,
Ortega Francisco,
HernándezFuentes Irmina
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210360102
Subject(s) - additive function , volume (thermodynamics) , partial specific volume , chemistry , polymer chemistry , materials science , thermodynamics , chemical engineering , organic chemistry , physics , mathematics , mathematical analysis , enzyme , engineering
Partial specific volumes, v 0 2 , of poly( D ‐β‐hydroxybutyrate), PHB, were determined by density measurements in several chloroaliphatic hydrocarbons. We observed that v 0 2 of PHB in tetrachloroethane is influenced only very little by temperature. This can be generalized for the group of solvents used. The experimental results are comapred with the data obtained theoretically using the concept of additivity of group contributions.