2010 Fiscal Year Final Research Report
Effect of the C-H…O=C Hydrogen Bondings of Biodegradable Polymers on the Crystal Structures and Thermal Behaviors
| Project/Area Number |
20550026
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Physical chemistry
|
|---|
| Research Institution | Kwansei Gakuin University |
|---|
Principal Investigator |
OZAKI Yukihiro Kwansei Gakuin University, 理工学部, 教授 (00147290)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SATO Harumi 関西学院大学, 理工学研究科, 専門技術員 (10288558)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 水素結合 / 生分解性高分子 / ラマン分光 / 赤外分光 / X線回折 |
|---|
| Research Abstract |
The purpose of this study is to investigate C-H…O=C hydrogen bondings and thermal behavior of biodegradable polyhydroxyalkanoates by using IR and Raman spectroscopy and quantum chemical calculation studies. It is very likely that the C-H…O=C hydrogen bondings break much more easily in P(HB-co-HHx) copolymer than in PHB because of the bulkiness of large amounts of amorphous parts. However, the polymer chains still keep the lamella structure even in the copolymers with the HHx (long side chain unit) content of more than several percent. The crystal structure of PHB remains almost unchanged until 140℃, but that of P(HB-co-HHx) decreases gradually from fairly low temperature (～50℃).
|
-
-
-
-
-
-
-
-
-
[Journal Article] A New Facile Method for Preparation of Nylon-6 with High Crystallinity and Special Morphology2009
Author(s)
H.Li, Y.Wu, H.Sato, L.Kong, C.Zhang, K.Huang, D.Tao, J.Chen, X.Liu, Y.Zhao, Y.Xu, J.Wu, Y.Ozaki
-
Journal Title
Macromolecules 42
Pages: 1175-1179
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
