Dendrimeric Thin-Film Composite Membranes: Free Volume, Roughness, and Fouling Resistance

Handle URI:
http://hdl.handle.net/10754/626197
Title:
Dendrimeric Thin-Film Composite Membranes: Free Volume, Roughness, and Fouling Resistance
Authors:
Phuoc, Duong ( 0000-0002-0949-3505 ) ; Zuo, Jian; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Copolyamide films with a thickness from 50 to 780 nm were fabricated by interfacial polymerization between mixtures of m-phenylene diamine and primary amine-terminated polyamidoamine dendrimers (PAMAM) in the aqueous phase and trimesoyl chloride (TMC) in the organic phase. Different PAMAM generations (G0, d = 15 Å, Z = 4; G3, d = 36 Å, Z = 32; and G5, d = 54, Z = 128, where d is the measured diameter and Z is the number of terminal groups) and concentrations were used to obtain copolyamide films with different crosslinked structures. The influences of the concentration and degree of branching (PAMAM generation) on free volume were analysed via positon annihilation spectroscopy (PAS) and correlated with the separation properties of copolyamide films. Besides, surface and intrinsic properties of copolyamide films under different conditions were compared. The high hydrophilicity of PAMAM in the copolyamide network leads to the formation of a hydration layer on the copolyamide surface, which minimizes fouling. The separation performance of copolyamide membranes with various PAMAM networks was investigated in forward osmosis (FO) experiments. Understanding the correlation between the PAMAM structure/concentration, free volume, thickness, and surface intrinsic properties leads to the design of suitable fouling resistant thin-film composite membranes in a single interfacial polymerization process.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Duong PHH, Zuo J, Nunes SP (2017) Dendrimeric Thin-Film Composite Membranes: Free Volume, Roughness, and Fouling Resistance. Industrial & Engineering Chemistry Research. Available: http://dx.doi.org/10.1021/acs.iecr.7b03867.
Publisher:
American Chemical Society (ACS)
Journal:
Industrial & Engineering Chemistry Research
Issue Date:
10-Nov-2017
DOI:
10.1021/acs.iecr.7b03867
Type:
Article
ISSN:
0888-5885; 1520-5045
Sponsors:
This work was supported by King Abdullah University of Science and Technology (KAUST). The authors thank Professor Tai-Shung Chung of the National University of Singapore for giving opportunity to use his laboratory’s positron annihilation spectroscopy and valuable comments.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.iecr.7b03867
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPhuoc, Duongen
dc.contributor.authorZuo, Jianen
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2017-11-23T11:51:29Z-
dc.date.available2017-11-23T11:51:29Z-
dc.date.issued2017-11-10en
dc.identifier.citationDuong PHH, Zuo J, Nunes SP (2017) Dendrimeric Thin-Film Composite Membranes: Free Volume, Roughness, and Fouling Resistance. Industrial & Engineering Chemistry Research. Available: http://dx.doi.org/10.1021/acs.iecr.7b03867.en
dc.identifier.issn0888-5885en
dc.identifier.issn1520-5045en
dc.identifier.doi10.1021/acs.iecr.7b03867en
dc.identifier.urihttp://hdl.handle.net/10754/626197-
dc.description.abstractCopolyamide films with a thickness from 50 to 780 nm were fabricated by interfacial polymerization between mixtures of m-phenylene diamine and primary amine-terminated polyamidoamine dendrimers (PAMAM) in the aqueous phase and trimesoyl chloride (TMC) in the organic phase. Different PAMAM generations (G0, d = 15 Å, Z = 4; G3, d = 36 Å, Z = 32; and G5, d = 54, Z = 128, where d is the measured diameter and Z is the number of terminal groups) and concentrations were used to obtain copolyamide films with different crosslinked structures. The influences of the concentration and degree of branching (PAMAM generation) on free volume were analysed via positon annihilation spectroscopy (PAS) and correlated with the separation properties of copolyamide films. Besides, surface and intrinsic properties of copolyamide films under different conditions were compared. The high hydrophilicity of PAMAM in the copolyamide network leads to the formation of a hydration layer on the copolyamide surface, which minimizes fouling. The separation performance of copolyamide membranes with various PAMAM networks was investigated in forward osmosis (FO) experiments. Understanding the correlation between the PAMAM structure/concentration, free volume, thickness, and surface intrinsic properties leads to the design of suitable fouling resistant thin-film composite membranes in a single interfacial polymerization process.en
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology (KAUST). The authors thank Professor Tai-Shung Chung of the National University of Singapore for giving opportunity to use his laboratory’s positron annihilation spectroscopy and valuable comments.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.iecr.7b03867en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial & Engineering Chemistry Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.iecr.7b03867.en
dc.subjectpolyamideen
dc.subjectinterfacial polymerizationen
dc.subjectdendrimeren
dc.subjectpolyamidoamineen
dc.subjectfouling resistanceen
dc.titleDendrimeric Thin-Film Composite Membranes: Free Volume, Roughness, and Fouling Resistanceen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalIndustrial & Engineering Chemistry Researchen
dc.eprint.versionPost-printen
dc.contributor.institutionNational University of Singapore, Department of Chemical and Biomolecular Engineering, 4 Engineering Drive 4, Singapore 117585, Singaporeen
kaust.authorPhuoc, Duongen
kaust.authorNunes, Suzana Pereiraen
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