Products Cited in Publications Worldwide Structure and transport properties of self-assembled nanofiltration membranes based on sustainably derived materials

Structure and transport properties of self-assembled nanofiltration membranes based on sustainably derived materials

Dong, Ruiqi; Kim, Na Kyung; Osuji, Chinedum O.

DOI:

Abstract

The development of functional using sustainable resources is an increasingly important pursuit. Unsaturated fatty acids represent a potentially interesting class of renewable materials for this purpose. Their unsaturated carbon bonds permit crosslinking to form solid . Addnl., their functional groups provide for the display of sp. surface chem. within the resulting , and also enable chem. derivatization. Here, we explore the fabrication of nanometer-scale size-selective membranes using derived . salt conjugated linoleic acid (KCLA) self-assembled to form hexagonally packed cylinders (HI) in an aqueous medium containing . This structure provides a highly ordered medium with aqueous-continuous channels for nanofiltration. The HI mesophase was crosslinked with the addition of bifunctional comonomers and the ordered structure was retained with good fidelity in the resulting thin polymer films (< 400 nm thick). These film function effectively as nanofiltration membranes, with a size cut-off of approx. 1.2 nm for charged solutes, while maintaining a high permeance of ∼ 9 LMH/bar. This performance is on par with several com. nanofiltration membranes and these materials are therefore of potential interest for advancing sustainability concerns in practical nanofiltration applications.

Keywords

self-assembly ; nanofiltration ; liquid crystal membrane ; thin film ; sustainable materials

Purchased from AmBeed

(10E,12Z)-Octadeca-10,12-dienoic acid

A3266292420-56-680% (isomers mixture)

(10E,12Z)-Octadeca-10,12-dienoic acid

80.0/500g

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