Single-molecule conformations probe free volume in polymers

被引：55
作者：
Vallée, RAL
Cotlett, M
Van der Auweraer, M
Hofkens, J
Müllen, K
De Schryver, FC
机构：
[1] Katholieke Univ Leuven, Dept Chem, B-3001 Louvain, Belgium
[2] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 08期
关键词：
D O I：
10.1021/ja031599g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this communication, we showed that the conformational dynamics of the tetraphenoxy?perylenetetracarboxy diimide single dye molecule embedded in different polymer matrixes allows a direct visualization of the local free volume. By monitoring the fluorescence lifetime of the dye molecule in time and at different locations in the matrix, different lifetimes were observed. Attributed to two distinct stable conformations of the dye molecule, the lifetime variations permitted characterization of the spatial distribution and temporal dynamics of free volume. Copyright © 2004 American Chemical Society.
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页码：2296 / 2297
页数：2
相关论文
共 31 条
[1]   MOLECULAR TRANSPORT IN LIQUIDS AND GLASSES [J].
COHEN, MH ;
TURNBULL, D .
JOURNAL OF CHEMICAL PHYSICS, 1959, 31 (05) :1164-1169
[2]   LIQUID-GLASS TRANSITION, A FREE-VOLUME APPROACH [J].
COHEN, MH ;
GREST, GS .
PHYSICAL REVIEW B, 1979, 20 (03) :1077-1098
[3]   THE NATURE OF THE GLASS-TRANSITION [J].
COHEN, MH ;
GREST, GS .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 61-2 (JAN) :749-759
[4]   Identification of different emitting species in the red fluorescent protein DsRed by means of ensemble and single-molecule spectroscopy [J].
Cotlet, M ;
Hofkens, J ;
Habuchi, S ;
Dirix, G ;
Van Guyse, M ;
Michiels, J ;
Vanderleyden, J ;
De Schryver, FC .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (25) :14398-14403
[5]   RETRACTED: Single-molecule studies of heterogeneous dynamics in polymer melts near the class transition (Retracted article. See vol 312, pg 195, 2006) [J].
Deschenes, LA ;
Vanden Bout, DA .
SCIENCE, 2001, 292 (5515) :255-258
[6]   Positron annihilation lifetime spectroscopy (PALS) for interdiffusion studies in disperse blends of compatible polymers: A quantitative analysis [J].
Dlubek, G ;
Pionteck, J ;
Bondarenko, V ;
Pompe, G ;
Taesler, C ;
Petters, K ;
Krause-Rehberg, R .
MACROMOLECULES, 2002, 35 (16) :6313-6323
[7]   STUDIES IN NEWTONIAN FLOW .2. THE DEPENDENCE OF THE VISCOSITY OF LIQUIDS ON FREE-SPACE [J].
DOOLITTLE, AK .
JOURNAL OF APPLIED PHYSICS, 1951, 22 (12) :1471-1475
[8]   LIQUID-GLASS TRANSITION - DEPENDENCE OF THE GLASS-TRANSITION ON HEATING AND COOLING RATES [J].
GREST, GS ;
COHEN, MH .
PHYSICAL REVIEW B, 1980, 21 (09) :4113-4117
[9]  
GREST GS, 1981, ADV CHEM PHYS, V48, P455, DOI DOI 10.1002/9780470142
[10]  
Herrmann A, 2001, CHEM-EUR J, V7, P4844, DOI 10.1002/1521-3765(20011119)7:22<4844::AID-CHEM4844>3.0.CO
1234