Molar Mass Distribution

Infraestructuras
Áreas de investigación
  • Physical Sciences
Página web
www.polymat.eu
Contacto

polymat@ehu.eus

¿Disponible para usuarios externos?
Yes
Descripción

Determination of polymer molar masses and molar mass distributions in aqueous media and tetrahydrofuran (THF). Additional capabilities include intrinsic viscosity and refractive index increment (dn/dc) measurements.

Servicios

- Molecular weight and molecular weight distribution measurements with differente separation techniques: SEC and AF4. - Ultrahigh molecular weight characterization - dn/dc measurements

SEC OR AF4 SEPARATION TECHNIQUES FOR THF SOLUBLE POLYMERS

HPLC system
- LC-20AD pump
- SIL-20AHT Autosampler
- CBM-20A module
Multi Angle Light Scattering Detectors (MALS): Dawn HELEOS
- Molar mass range: 200 Da to 10 GDa
- Molecular size range (rg): 10 – 500 nm, up to 1000 nm with shape-specific models
- Molecular Size Range (Rh, with DLS): Flow: 1 – 300 nm
Batch: 0.5 nm – 1 µm
- Static Scattering detectors: 18 angles
- DLS Scattering Angle (optional WyattQELS: any one of 18 static scattering angles

SEC OR AF4 SEPARATION TECHNIQUES FOR WATER SOLUBLE POLYMERS
HPLC system
- LC-20AD pump
- SIL-20AHT Autosampler
- CBM-20A module
Multi Angle Light Scattering Detectors (MALS): Mini Dawn TREOS
- Molar mass range: 200 Da to 10 MDa
- Molecular size range (rg): 10 – 50 nm, up to 150 nm with shape-specific models
- Molecular Size Range (Rh, with DLS): Flow: 1 – 40 nm
Batch: 0.5 nm – 1 µm
- Static Scattering detectors: 3 angles
- DLS Scattering Anlge (optional WyattQELS): 90º

Techniques and equipment: Size exclusion chromatography (SEC/GPC) and asymmetric flow field-flow fractionation (AF4), with multi-angle light scattering (MALS), refractive index and viscometric detection, depending on the configuration.

Localización

Centro Joxe Mari Korta Avenida Tolosa 72 20018 Donostia-San Sebastián