| Numéro |
J. Phys. IV France
Volume 125, June 2005
|
|
|---|---|---|
| Page(s) | 281 - 283 | |
| DOI | https://doi.org/10.1051/jp4:2005125067 | |
J. Phys. IV France 125 (2005) 281-283
DOI: 10.1051/jp4:2005125067
Photoacoustic evaluation of molecular weight and crosslinking effects on thermal diffusivity in Poly(N-vinyl-2-pirrolidone)
R. Saavedra1, N. Gatica2, J.E. Morales1 and A. Cruz-Orea31 Departamento de Fisica, Universidad de Concepcion, Casilla 160-C, Concepcion, Chile
2 Departamento de Polimeros, Facultad de Ciencias Quimicas, Universidad de Concepcion, Edmundo Larenas 129, Concepcion, Chile
3 Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del IPN, A.P. 14-740, CP 07360, Mexico DF, Mexico
Abstract
The thermal diffusivity of Poly(N-vinyl-2-pirrolidone) (PVP) samples was investigated using open photoacoustic cell technique (OPC) as function of molecular weight and crosslinking. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and X~ray diffraction (XRD) techniques were also used to the PVP characterization.
© EDP Sciences 2005