InterfacialpolymerizationinconstrictedzonetoinducedReverse osmosisandnanofiltrationmembranes orientedsynthesis

Tan Zhe、Gao Congjie

Strategic Study of CAE ›› 2014, Vol. 16 ›› Issue (7) : 17-22.

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PDF(2955 KB)
Strategic Study of CAE ›› 2014, Vol. 16 ›› Issue (7) : 17-22.

InterfacialpolymerizationinconstrictedzonetoinducedReverse osmosisandnanofiltrationmembranes orientedsynthesis

  • Tan Zhe、Gao Congjie

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Abstract

Herein, we report a new concept, constricted interfacial polymerization to study the formation of polyamide thin film composite membranes. Delayed diffusion of protected polyfunctional amine reacts with acyl chloride to produce a transition surface structure. Hydrophilic macromolecules and amphiphilic template induced interfacial polymerization reacted in a limited zone, the aggregation state of polymer chains transform from a random state to a regular stateand membrane permeability increases without a loss of salt rejection. Zeolite nanoparticles dispersed in RO composite membrane changed film morphology and water permeability is increased nearly 50% with equivalent salt rejection.

Keywords

constricted interfacialpolymerization / reverse osmosis / nanofiltration / surface morphology / separation performance

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Tan Zhe,Gao Congjie. InterfacialpolymerizationinconstrictedzonetoinducedReverse osmosisandnanofiltrationmembranes orientedsynthesis. Strategic Study of CAE, 2014, 16(7): 17‒22
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