Viscometric constants for small polystyrenes and polyisobutenes by gel permeation chromatography

Using an on-line, continuous, single-capillary viscometer and a refractometer in gel permeation chromatography (g.p.c.), two sets of polymer standards (polystyrene and polyisobutene) of narrow distribution and low/median molecular weight were investigated for their intrinsic viscosities. The experim...

Full description

Saved in:
Bibliographic Details
Published in:Polymer (Guilford) 1994-01, Vol.35 (11), p.2385-2389
Main Author: Xie, Jianrong
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
gel permeation chromatography
molecular-weight standards
Organic polymers
Physicochemistry of polymers
Properties and characterization
Solution and gel properties
viscometric constants
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using an on-line, continuous, single-capillary viscometer and a refractometer in gel permeation chromatography (g.p.c.), two sets of polymer standards (polystyrene and polyisobutene) of narrow distribution and low/median molecular weight were investigated for their intrinsic viscosities. The experimentally obtained intrinsic viscosity versus molecular weight relations of the polystyrenes conform well to the Mark-Houwink-Sakurada (MHS) equation and the Dondos-Benoit (DB) equation in the molecular-weight ranges considered. The deduced viscometric constants were found to be very close to the values reported in the literature. By using both number-average and weight-average molecular weights, the experimental intrinsic viscosity versus molecular weight relations of the polyisobutenes were found to conform to the MHS equation or the DB equation in the molecular-weight range studied. This characteristic of the polyisobutenes provides easy access to the indirect g.p.c. calibration introduced by Dondos.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(94)90777-3