Effect of constricted polymerization time on nanofiltration membrane characteristic and performance

A study using the Donnan Steric Pore Flow Model

A. L. Ahmad, B. S. Ooi, Abdul Wahab Mohammad, J. P. Choudhury

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Polyamide composite nanofiltration membranes are fabricated under constricted polymerization time. The membranes were characterized for pore size, effective thickness/porosity as well as effective membrane charge density using the Donnan Steric Pore Flow Model. The effect of polymerization (reaction) time on the membrane characteristics and membrane performance (flux and rejection) was studied. The effect of polymerization time on pore size is not significant for reaction times less than 120 s but the effective thickness/porosity seems to be increasing proportionally with polymerization time. Effective membrane charge density for all the membranes depended on the degree of condensation and hydrolysis process. Polymerization time is an important process condition that could change the effective thickness/porosity, pore size, and effective volume charge density and subsequently affect the membrane performance in terms of flux and rejection.

Original languageEnglish
Pages (from-to)394-399
Number of pages6
JournalJournal of Applied Polymer Science
Volume94
Issue number1
DOIs
Publication statusPublished - 5 Oct 2004

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Nanofiltration membranes
Polymerization
Membranes
Charge density
Pore size
Porosity
Fluxes
Composite membranes
Nylons
Polyamides
Condensation
Hydrolysis

Keywords

  • Composites
  • Membranes
  • Polyamides

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Effect of constricted polymerization time on nanofiltration membrane characteristic and performance : A study using the Donnan Steric Pore Flow Model. / Ahmad, A. L.; Ooi, B. S.; Mohammad, Abdul Wahab; Choudhury, J. P.

In: Journal of Applied Polymer Science, Vol. 94, No. 1, 05.10.2004, p. 394-399.

Research output: Contribution to journalArticle

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