Local chain dynamics of adsorbed polystyrene studied by time-resolved fluorescence anisotropy

被引：10

作者：

Jeon, S ^{[1
]}

Bae, SC ^{[1
]}

Granick, S ^{[1
]}

机构：

[1] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA

来源：

MACROMOLECULES | 2001年 / 34卷 / 24期

关键词：

D O I：

10.1021/ma010586p

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A study of the exchange dynamics of adsorbed polystyrene polymers considering their dynamic and equilibrium aspects was done. It comprised of direct measurements of the rotational chain segment located within the loops along adsorbed flexible polymer chains. The adsorbed polystyrene showed a second order, anisotropic decay with life time decreasing upon adsorption. The double-exponential function was found sufficient to represent the anisotropy, surface and bulk fluorescence decays.

引用

页码：8401 / 8404

页数：4

共 15 条

[1] Measurement of molecular diffusion in solution by multiphoton fluorescence photobleaching recovery
Brown, EB
Wu, ES
Zipfel, W
Webb, WW
[J]. BIOPHYSICAL JOURNAL, 1999, 77 (05) : 2837 - 2849
[2] A SIMPLE KINETIC-MODEL OF POLYMER ADSORPTION AND DESORPTION
DOUGLAS, JF
JOHNSON, HE
GRANICK, S
[J]. SCIENCE, 1993, 262 (5142) : 2010 - 2012
[3] EDIGER MD, 1991, ANNU REV PHYS CHEM, V42, P225, DOI 10.1146/annurev.physchem.42.1.225
[4] Fleer G., 1993, Polymers at interfaces
[5] EXCHANGE KINETICS OF ADSORBED POLYMER AND THE ACHIEVEMENT OF CONFORMATIONAL EQUILIBRIUM
FRANTZ, P
GRANICK, S
[J]. MACROMOLECULES, 1994, 27 (09) : 2553 - 2558
[6] Probing collective motions of terminally anchored polymers
Fytas, G
Anastasiadis, SH
Seghrouchni, R
Vlassopoulos, D
Li, JB
Factor, BJ
Theobald, W
Toprakcioglu, C
[J]. SCIENCE, 1996, 274 (5295) : 2041 - 2044
[7] Influence of a fluorescent probe on the local relaxation times for a polystyrene chain in the fluorescence depolarization method
Horinaka, J
Ito, S
Yamamoto, M
Tsujii, Y
Matsuda, T
[J]. MACROMOLECULES, 1999, 32 (07) : 2270 - 2274
[8] Local motion of oligo- and polystyrene chain end studied by the fluorescence depolarization method
Horinaka, J
Maruta, M
Ito, S
Yamamoto, M
[J]. MACROMOLECULES, 1999, 32 (04) : 1134 - 1139
[9] Local chain dynamics of poly(oxyethylene) studied by the fluorescence depolarization method
Horinaka, J
Amano, S
Funada, H
Ito, S
Yamamoto, M
[J]. MACROMOLECULES, 1998, 31 (04) : 1197 - 1201
[10] Influence of temperature and viscosity on anthracene rotational diffusion in organic solvents: Molecular dynamics simulations and fluorescence anisotropy study
Jas, GS
Wang, Y
Pauls, SW
Johnson, CK
Kuczera, K
[J]. JOURNAL OF CHEMICAL PHYSICS, 1997, 107 (21) : 8800 - 8812

← 1 2 →