Relation empirique entre la viscosite intrinseque et la masse moleculaire d'un polymere dissout dans un bon solvant |
| |
Authors: | Anastasios Dondos |
| |
Affiliation: | Centre de Recherches sur les Macromolécules (CNRS), 6, rue Boussingault-67083 Strasbourg Cedex, France |
| |
Abstract: | We propose the following empirical relationship between the intrinsic viscosity of a polymer and its molecular weight M. [η] and [η]0 are the intrinsic viscosities in a good solvent and in θ conditions respectively. Δ?, and A′ are constants characteristic of a system polymer-solvent. This relationship is valid for PS and PMMA in various good solvents and for a range of molecular weight from 3000 to 250,000. It is in this range that the Mark-Houwink-Sakurada equation is least applicable. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|