Freeze‐dried cellulose acetate membrane fine structure observation
1980; Wiley; Volume: 18; Issue: 11 Linguagem: Inglês
10.1002/pol.1980.170181109
ISSN1542-9369
AutoresAkio Kakuta, M. Kuramoto, M. Ohno, Hiroshi Kushida, Akihiko Tanioka, Kazunori Ishikawa,
Tópico(s)Surfactants and Colloidal Systems
ResumoAbstract A freeze‐dried cellulose acetate membrane fine structure was observed with an ultrathin sectioning electron microscope. The fine structure for the top surface in this membrane could be seen by lead citrate staining ultrathin sectioning. This network structure was observed among pores, which existed in porous substrate. The pore diameter in the top surface was about 50 Å, a value that agrees approximately with the value estimated by gas permeation.
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