CHROMATOGRAPHIC CHARACTERIZATION OF COMPLEX POLYMER SYSTEMS WITH THERMAL FIELD-FLOW FRACTIONATION

被引：20

作者：

ANTONIETTI, M

BRIEL, A

TANK, C

机构：

[1] Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Teltow-Seehof, D-14513

来源：

ACTA POLYMERICA | 1995年 / 46卷 / 03期

关键词：

D O I：

10.1002/actp.1995.010460307

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermal field-flow fractionation (TFFF) coupled with multi-angle laser light scattering (MALLS) is a promising quantitative method for determining the molecular-weight distribution (MWD) of complex polymers and their aggregates. This paper describes the application of TFFF-MALLS to linear polystyrene as well as highly cross-linked microgel and sulfonated polystyrene samples. In addition, the chromatographic characterization of block copolymer micelles with different core chemistry is performed. The dependence of retention volume on the mass diffusion coefficient D and the thermal diffusion coefficient D-T was confirmed. It is shown that D-T, as predicted by theory, depends only on the solvent, being independent of both molecular weight and structure.

引用

页码：254 / 260

页数：7

共 21 条

[1]

ANTONIETTI M, UNPUB

[2]

ANTONIETTI M, 1994, MACROMOLECULES, V27, P6636

[3]

ANTONIETTI M, 1991, MACROMOLECULES, V24, P3276

[4]

ANTONIETTI M, 1993, J APPL POLYM SCI, V52, P91