It allows to characterize in situ self-assemblies based on polymers more or less organized going from solutions, suspensions or emulsions to physical or chemical gels, in terms of:
- gyration radius, second virial coefficient and apparent weight molar mass as far as concerns static light scattering;
- intermolecular and/or intramolecular decorrelation time, diffusion coefficient and hydrodynamic radius as far as concerns dynamic light scattering.
ALV light scattering apparatus
A high performance light scattering apparatus of type ALV/CGS-8F S/N 069, equipped with a red helium-neon laser (JDSU) operating at a wavelength of 632.8 nm and at a power smaller than 35 mW (class 3B), is available at Cermav. The measured sample is in a temperature-regulated toluene bath.
Very small angle light scattering apparatus
Particle visualization apparatus
This instrument is optimum for concentrations in the order of magnitude of 107-108 particles per ml and the range of accessible particle sizes goes from 10 nm up to 1 μm. It is equipped with a device allowing temperature control, and with a blue laser for fluorescence, what makes it complementary to confocal microscopy in liquid medium.
- Refractometer by Optilab: of type Optilab-Rex, it uses a wavelength of 632.8 nm.
- Rheometers and capillar viscosimeter (Rheology facility).