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Title: Acid diffusion through polyaniline membranes

Polyaniline membranes in the undoped (base) and doped (acid) forms are studied for their utility as pervaporation membranes. The separation of water from mixtures of propionic acid, acetic acid and formic acid have been demonstrated from various feed compositions. Doped polyaniline displays an enhanced selectivity of water over these organic acids as compared with undoped polyaniline. For as-cast polyaniline membranes a diffusion coefficient (D) on the order of 10{sup -9} cm{sup 2}/sec has been determined for the flux of protons through the membranes using hydrochloric acid.
Authors:
; ;  [1]
  1. Univ. of California, Los Angeles, CA (United States) [and others
Publication Date:
OSTI Identifier:
126936
Report Number(s):
CONF-950402--
TRN: 95:006086-1009
Resource Type:
Conference
Resource Relation:
Conference: 209. American Chemical Society (ACS) national meeting, Anaheim, CA (United States), 2-6 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of 209th ACS national meeting; PB: 2088 p.
Publisher:
American Chemical Society, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ORGANIC POLYMERS; PERMEABILITY; ACETIC ACID; DIFFUSION; HYDROCHLORIC ACID; FORMIC ACID; ORGANIC ACIDS; PROPIONIC ACID; ANILINE