Structural relaxation as a forked road to crystallization and glass transition of vapor-deposited amorphous molecular systems

被引：15

作者：

Ishii, K ^{[1
]}

Takei, M ^{[1
]}

Yamamoto, M ^{[1
]}

Nakayama, H ^{[1
]}

机构：

[1] Gakushuin Univ, Dept Chem, Tokyo 1718588, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 398卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.09.074

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：

Structural changes of chlorobenzene/toluene and chlorobenzene/ethylbenzene binary amorphous systems due to temperature elevation were studied with Raman scattering, X-ray diffraction, and light-transmission monitoring for samples prepared by vapor deposition on cold substrates. Two distinct behaviors of the samples, namely direct crystallization and glass transition, were observed depending on the composition of the sample. Structural relaxation which the system steps into in advance of crystallization or glass transition is pointed out to be a forked road that leads vapor-deposited amorphous molecular systems to these two kinds of structural changes. (C) 2004 Elsevier B.V. All rights reserved.

引用

收藏

页码：377 / 383

页数：7

相关论文

共 20 条

[1] STRUCTURAL INSTABILITY AND RELAXATION IN LIQUID AND GLASSY PHASES NEAR THE FRAGILE LIQUID LIMIT [J].

ANGELL, CA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1988, 102 (1-3) :205-221

[2]

Donth E.-J., 2001, The Glass Transition

[3] Supercooled liquids and glasses [J].

Ediger, MD ;

Angell, CA ;

Nagel, SR .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (31) :13200-13212

[4] RAMAN-SPECTRA AND ANNEALING PROCESSES IN GLASSY FILMS OF LONG-CHAIN ORGANIC-COMPOUNDS [J].

HIBINO, Y ;

ISHII, K ;

NAKAYAMA, H .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1990, 187 :175-182

[5] DETERMINATION OF POTENTIALLY HOMOGENEOUS-NUCLEATION-BASED CRYSTALLIZATION IN O-TERPHERNYL AND AN INTERPRETATION OF THE NUCLEATION-ENHANCEMENT MECHANISM [J].

HIKIMA, T ;

ADACHI, Y ;

HANAYA, M ;

OGUNI, M .

PHYSICAL REVIEW B, 1995, 52 (06) :3900-3908

[6] Microscopic observation of a peculiar crystallization in the glass transition region and β-process as potentially controlling the growth rate in triphenylethylene [J].

Hikima, T ;

Hanaya, M ;

Oguni, M .

JOURNAL OF MOLECULAR STRUCTURE, 1999, 479 (2-3) :245-250

[7] Excess volume of vapor-deposited molecular glass and its change due to structural relaxation: Studies of light interference in film samples [J].

Ishii, K ;

Nakayama, H ;

Okamura, T ;

Yamamoto, M ;

Hosokawa, T .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (03) :876-881

[8] INFRARED AND RAMAN STUDIES OF STRUCTURAL RELAXATION IN AMORPHOUS TETRACOSANE, N-C24H50 [J].

ISHII, K ;

NUKAGA, M ;

HIBINO, Y ;

HAGIWARA, S ;

NAKAYAMA, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1995, 68 (05) :1323-1330

[9] Density inhomogeneity in amorphous chlorobenzene vapor-deposited on cold substrates [J].

Ishii, K ;

Yoshida, M ;

Suzuki, K ;

Sakurai, H ;

Shimayama, T ;

Nakayama, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2001, 74 (03) :435-440

[10] Amorphous state of vacuum-deposited benzene and its crystallization [J].

Ishii, K ;

Nakayama, H ;

Yoshida, T ;

Usui, H ;

Koyama, K .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1996, 69 (10) :2831-2838