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

被引:38
作者
NAKAMURA, K [1 ]
YOSHIE, N [1 ]
SAKURAI, M [1 ]
INOUE, Y [1 ]
机构
[1] TOKYO INST TECHNOL,DEPT BIOMOLEC ENGN,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
关键词
POLY(3-HYDROXYBUTYRATE); HYDROXYALKANOATE COPOLYESTERS; MOLECULAR MECHANICS;
D O I
10.1016/0032-3861(94)90071-X
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 carried out by the use of molecular mechanics calculations. It was demonstrated that P(3HB-co-4HB) cannot form isomorphic crystals because of the extent of the structural difference between the 3HB and 4HB comonomer components.
引用
收藏
页码:193 / 197
页数:5
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