On polyamorphism of triphenyl phosphite

被引：61

作者：

Wiedersich, J ^{[1
]}

Kudlik, A ^{[1
]}

Gottwald, J ^{[1
]}

Benini, G ^{[1
]}

Roggatz, I ^{[1
]}

Rossler, E ^{[1
]}

机构：

[1] UNIV BAYREUTH,INST PHYS,D-95444 BAYREUTH,GERMANY

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 30期

关键词：

D O I：

10.1021/jp970848i

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigated the glass former triphenyl phosphite by calorimetry, Brillouin scattering, and dielectric and nuclear magnetic resonance spectroscopy, Time-resolved experiments demonstrate the conversion between three distinctly different phases, namely, the supercooled liquid, a recently discovered apparently amorphous phase (glacial phase), and the crystalline phase. The temperature dependencies of the properties provided by the different methods are compared, We find significant molecular motion in the glacial phase. From this we hypothesize that the glacial phase is a different highly viscous liquid or a solid phase with some kind of cooperative relaxation.

引用

页码：5800 / 5803

页数：4

共 7 条

[1] FORMATION OF GLASSES FROM LIQUIDS AND BIOPOLYMERS [J].