Direct non-radiative energy transfer across a sharp polymer interface

被引:14
作者
Feng, JR
Yekta, A
Winnik, MA
机构
[1] UNIV TORONTO,DEPT CHEM,TORONTO,ON M5S 1A1,CANADA
[2] UNIV TORONTO,ERINDALE COLL,TORONTO,ON M5S 1A1,CANADA
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1016/0009-2614(96)00853-6
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
A simple interfacial model system is chosen in which fluorescent donors and accepters attached to incompatible polymer chains are randomly distributed in respective phases separated by a sharp interface. Direct non-radiative energy transfer (DET) across the interface between the labeled polymer phases is observed by fluorescence decay measurements. The quantum efficiency of energy transfer (phi(ET)) is used to quantify phi(ET). We show that phi(ET), increases as the interfacial contact area between the phases increases and is inversely proportional to the diameter of the dispersed spherical donor-labeled particles. The data indicate that the degree of interpenetration at the interface is less than 2 nm.
引用
收藏
页码:296 / 301
页数:6
相关论文
共 33 条
[1]   INVESTIGATION OF COMPATIBILITY IN SYNDIOTACTIC POLY(METHYL METHACRYLATE) POLYVINYL-CHLORIDE) BLENDS [J].
ALBERT, B ;
JEROME, R ;
TEYSSIE, P ;
SMYTH, G ;
BOYLE, NG ;
MCBRIERTY, VJ .
MACROMOLECULES, 1985, 18 (03) :388-394
[2]  
ALBERT B, 1987, J POLYM SCI POL CHEM, V24, P2577
[3]   STUDIES OF POLYMER COMPATIBILITY BY NONRADIATIVE ENERGY-TRANSFER [J].
AMRANI, F ;
HUNG, JM ;
MORAWETZ, H .
MACROMOLECULES, 1980, 13 (03) :649-653
[4]  
[Anonymous], 1978, POLYM BLENDS
[5]  
[Anonymous], POLYM ADVAN TECHNOL
[6]  
Berlman I.B., 1973, ENERGY TRANSFER PARA
[7]   CHARACTERIZATION OF POLYMER MISCIBILITY BY FLUORESCENCE TECHNIQUES - BLENDS OF STYRENE COPOLYMERS CARRYING HYDROGEN-BOND DONORS WITH POLYMETHACRYLATES [J].
CHEN, CT ;
MORAWETZ, H .
MACROMOLECULES, 1989, 22 (01) :159-164
[8]   A RECONSIDERATION OF THE MEASUREMENT OF POLYMER INTERDIFFUSION BY FLUORESCENCE NONRADIATIVE ENERGY-TRANSFER [J].
DHINOJWALA, A ;
TORKELSON, JM .
MACROMOLECULES, 1994, 27 (17) :4817-4824
[9]   DETERMINATION OF THE GUEST RADIUS OF GYRATION IN POLYMER BLENDS - TIME-RESOLVED MEASUREMENTS OF EXCITATION TRANSPORT INDUCED FLUORESCENCE DEPOLARIZATION [J].
EDIGER, MD ;
DOMINGUE, RP ;
PETERSON, KA ;
FAYER, MD .
MACROMOLECULES, 1985, 18 (06) :1182-1190
[10]   NEW APPROACH TO PROBING POLYMER AND POLYMER BLEND STRUCTURE USING ELECTRONIC EXCITATION TRANSPORT [J].
EDIGER, MD ;
FAYER, MD .
MACROMOLECULES, 1983, 16 (12) :1839-1844