Diffusion of labeled polyelectrolyte probes in unlabeled polyelectrolyte matrix solutions

被引：5

作者：

Cong, R

Temyanko, E

Russo, PS ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA

[2] Louisiana State Univ, Macromol Studies Grp, Baton Rouge, LA 70803 USA

来源：

MACROMOLECULES | 2005年 / 38卷 / 26期

关键词：

D O I：

10.1021/ma0511696

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The translational diffusion of labeled sodium polystyrenesulfonate (LNaPSS) in aqueous solutions containing a matrix of unlabeled NaPSS was investigated using fluorescence photobleaching recovery (FPR). LNaPSS-6500, LNaPSS-100000, and LNaPSS-680000 served as probes, while unlabeled NaPSS-990000 was the matrix. The behavior of LnaPSS in NaPSS-990000 matrix was affected by sample preparation. The results show a stronger theoretical basis for diffusion in mixed polyelectrolyte solutions is required to guide additional experimental studies spanning a wider range of probe and matrix molecular weights.

引用

页码：10627 / 10630

页数：4

共 35 条

[1] Preparation and characterization of hydrosoluble, partially charged poly(styrenesulfonate)s of various controlled charge fractions and chain lengths [J].