EFFECTS OF THE SOLID-LIQUID INTERFACE ON THE EXCIMER FORMATION OF PYRENE IN TOLUENE CONTAINING POLY(METHYL METHACRYLATE) - A TIME-RESOLVED TOTAL INTERNAL-REFLECTION FLUORESCENCE STUDY

被引：9

作者：

HAMAI, S

TAMAI, N

MASUHARA, H

机构：

[1] Microphotoconversion Project2 2 After the period of the Project (October 1988-September 1993), all correspondence should be addressed to Osaka University., ERATO, Sakyo-ku, Kyoto, 606, 15 Morimoto-cho, Shimogamo

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 213卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(93)85154-G

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：

By means of time-resolved total internal reflection (TIR) fluorescence measurements, rise and decay profiles of the pyrene excimer fluorescence were examined in toluene containing 3.3 x 10(-4) mol dm-3 of poly (methyl methacrylate) (PMMA, MW = 1 20000). In addition to a reduction of the fluorescence intensity of the pyrene excimer relative to the monomer, the rise and decay rates of the excimer fluorescence were decelerated in a sapphire/toluene interface layer of a thickness less than 60 nm. These findings were interpreted by an increase in the viscosity of the interface layer including PMMA adsorbed on a sapphire surface.

引用

页码：407 / 411

页数：5

共 15 条

[1]

Bevington P., 1969, DATA REDUCTION ERROR

[2]

Birks J.B., 1970, PHOTOPHYSICS AROMATI

[3]

BRIKS JB, 1963, P ROY SOC LOND A MAT, V275, P573

[4] INVESTIGATION BY OPTICAL EVANESCENT WAVES OF THE STRUCTURE OF ADSORBED POLYMER LAYERS IN GOOD SOLVENTS [J].