A STRUCTURAL STUDY OF THE CRYSTALLINE STATE OF THE BACTERIAL COPOLYESTER POLY(3-HYDROXYBUTYRATE-CO-4-HYDROXYBUTYRATE)

Authors
NAKAMURA K YOSHIE N SAKURAI M INOUE Y
Citation
K. Nakamura et al., A STRUCTURAL STUDY OF THE CRYSTALLINE STATE OF THE BACTERIAL COPOLYESTER POLY(3-HYDROXYBUTYRATE-CO-4-HYDROXYBUTYRATE), Polymer, 35(1), 1994, pp. 193-197
Citations number
26
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
35
Issue
1
Year of publication
1994
Pages
193 - 197
Database
ISI
SICI code
0032-3861(1994)35:1<193:ASSOTC>2.0.ZU;2-#
Abstract
Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)s (P(3HB-co-4HB)s) with a wide range of 4HB contents were biosynthesized, and their crystalline states were studied by differential scanning calorimetry (d.s.c.) and compared with those of the cold-stretched copolyesters of poly(3HB-co- 3-hydroxyvalerate) (P(3HB-co-3HV)). A structural study was also carrie d out by the use of molecular mechanics calculations. It was demonstra ted that P(3HB-co-4HB) cannot form isomorphic crystals because of the extent of the structural difference between the 3HB and 4HB comonomer components.