Isothermal crystallization of poly(3-hydroxybutyrate) studied by terahertz two-dimensional correlation spectroscopy

被引：32

作者：

Hoshina, Hiromichi ^{[1
]}

Ishii, Shinya ^{[1
,2
]}

Morisawa, Yusuke ^{[3
]}

Sato, Harumi ^{[3
]}

Noda, Isao ^{[4
]}

Ozaki, Yukihiro ^{[3
]}

Otani, Chiko ^{[1
]}

机构：

[1] RIKEN, Aoba Ku, Sendai, Miyagi 9800845, Japan

[2] Miyagi Univ Educ, Aoba Ku, Sendai, Miyagi 9800845, Japan

[3] Kwansei Gakuin Univ, Sch Sci & Technol, Dept Chem, Sanda, Hyogo 6691337, Japan

[4] Procter & Gamble Co, W Chester, OH 45069 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1063/1.3673847

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The isothermal crystallization of poly(3-hydroxybutylate) (PHB) was studied by monitoring the temporal evolution of terahertz absorption spectra in conjunction with spectral analysis using two-dimensional correlation spectroscopy. Correlation between the absorption peaks and the sequential order of the changes in spectral intensity extracted from synchronous and asynchronous plots indicated that crystallization of PHB at 90 degrees C is a two step process, in which C-H center dot center dot center dot O=C hydrogen bonds are initially formed before well-defined crystal structures are established. (C) 2012 American Institute of Physics. [doi:10.1063/1.3673847]

引用

页数：3

共 12 条

[1] Two-dimensional correlation spectroscopy: Effect of band position, width, and intensity changes on correlation intensities [J].