Remarkable improvements in the photochromic reversibilities of fulgides in solid films

被引：5

作者：

Matsushima, R ^{[1
]}

Hayashi, T ^{[1
]}

Nishiyama, M ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Engn, Hamamatsu, Shizuoka 4328561, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 344卷

关键词：

photochromic fulgides; photochemical fatigue resistance; sealed air-tight film; dimethylaniline group;

D O I：

10.1080/10587250008023843

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oxazolyl fulgide with p-dimethylaniline group (fulgide 1) revealed favorable absorption spectra, high photochromic responses and high thermostabilities in a polystyrene or a poly(methyl methacrylate) film spin-coated on a silica glass, but it suffered from extensive photochemical fatigues while phenyl-substituted oxazolyl fulgide (fulgide 2) revealed much less fatigues. The photochemical fatigues of fulgide 1 could be substantially suppressed by a simple treatment of the spin-coated films to keep air-tight. Similar improvement in the photochemical fatigue resistance was obtained with films of the well-known furylfulgide. Further, thermal stabilities were significantly improved towards heating at 80 degrees C. These effects are ascribable to the effective shielding of the air (molecular oxygen).

引用

页码：241 / 246

页数：6

共 9 条

[1] Large and stable refractive index change in photochromic hybrid materials [J].

Biteau, J ;

Chaput, F ;

Lahlil, K ;

Boilot, JP ;

Tsivgoulis, GM ;

Lehn, JM ;

Darracq, B ;

Marois, C ;

Levy, Y .

CHEMISTRY OF MATERIALS, 1998, 10 (07) :1945-1950

[2] Singlet oxygen as a reactive intermediate in the photodegradation of phenylenevinylene oligomers [J].

Dam, N ;

Scurlock, RD ;

Wang, BJ ;

Ma, LC ;

Sundahl, M ;

Ogilby, PR .

CHEMISTRY OF MATERIALS, 1999, 11 (05) :1302-1305

[3]

Durr H., 1990, PHOTOCHROMISM MOL SY

[4] PHOTOCHROMIC HETEROCYCLIC FULGIDES .3. THE USE OF (E)-ALPHA-(2,5-DIMETHYL-3-FURYLETHYLIDENE) (ISOPROPYLIDENE)SUCCINIC ANHYDRIDE AS A SIMPLE CONVENIENT CHEMICAL ACTINOMETER [J].

HELLER, HG ;

LANGAN, JR .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1981, (02) :341-343

[5]

IRIE M, 1994, PHOTOREACTIVE MAT UL, P1

[6] Photoresponsive tweezers for alkali metal ions. Photochromic diarylethenes having two crown ether moieties [J].

Takeshita, M ;

Irie, M .

JOURNAL OF ORGANIC CHEMISTRY, 1998, 63 (19) :6643-6649

[7] PHOTOOPTICAL SWITCHING OF POLYMER FILM WAVE-GUIDE CONTAINING PHOTOCHROMIC DIARYLETHENES [J].

TANIO, N ;

IRIE, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1994, 33 (3A) :1550-1553

[8] Control of the structure and functions of biomaterials by light [J].

Willner, I ;

Rubin, S .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1996, 35 (04) :367-385

[9] Trifluoromethyl-substituted photochromic indolylfulgide. A remarkably durable fulgide towards photochemical and thermal treatments [J].

Yokoyama, Y ;

Takahashi, K .

CHEMISTRY LETTERS, 1996, (12) :1037-1038

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