We present three models of the changes in measured pore size distribution for cylindrical pores when a polymer is deposited in the pores by evaporation from a volatile solvent. The predicted results serve as an aid in interpreting experimental nitrogen adsorption data for polybutadiene (PBD) coatings on porous zirconia. At low loadings, PBD appears to deposit in thin layers on the surface with no preference for filling either large or small pores. At higher PBD loadings, the polymer deposits preferentially in smaller pores. This is in qualitative agreement with PBD coatings on porous silica.
Bibliographical noteFunding Information:
This work was supportedb y grantsG M 45988 from the National Instituteso f Health and CHE 917029 from the National Science Foundation. D.H.R. gratefullyr ecognizest he support of the National Instituteso f General Medical Sciences througha BiotechnologTyr ainingF ellowship( IT32-GM08347).T hanksa lso go to the SurfaceA nalysis Center at the Universityo f Minnesotaf or instrumentation.
- polybutadiene coatings
- stationary phases, LC