Number: 422/2/98
Title: Characterization of polyelectrolytes
in aqueous solution by GPC, light scattering, viscometry, ultracentrifuge
or similar methods
Coordinator(s): R.
Bruessau
Remarks: Interactions with other bodies
will be developed according to needs as they arise.
Completion Date: 2001
Objective:
This is a round robin test (RRT) on polyacrylic acid. The first
round has been finished; measurements were by SEC/GPC, light scattering,
ultracentrifuge and viscometry. Two samples were characterized in
13 labs. The data scatter is enormous and standardization is necessary
in the second stage of the RRT.
Progress:
First round is finished and the publication is under preparation.
Last update: 5 August 2001