Surface selectivities in wet chemically modified PVC films. Influence of reaction conditions.
Wet chemical modification reactions of PVC films in solvent/nonsolvent mixtures were performed. Three thiol compounds of different size and reactivity were used varying the solvent quality, temperature, and reaction times. The evolution of the concentration gradients within the films was studied using confocal Raman spectroscopy and attenuated total reflectance Fourier transform infrared spectroscopy. Surface selectivities were calculated and discussed in terms of the different relative reaction rate constants.
Herrero
Miguel
M
Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain.
Navarro
Rodrigo
R
García
Nuria
N
Mijangos
Carmen
C
Reinecke
Helmut
H