Crosslinked chitosan composite membrane for the pervaporation dehydration of alcohol mixtures and enhancement of structural stability of chitosan/polysulfone composite membranes

Huang, Robert Y. M.; Pal, Rajinder; Moon, Go Young

doi:10.1016/s0376-7388(99)00074-5

Cited by 157 publications

(54 citation statements)

References 32 publications

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“…Vários pesquisadores (HUANG, et al, 1999;BEPPU et al, 1999;MUSALLE et al;MELLO et al, 2006) et al (1994).…”

Section: Ii64 a Quitosana (Qui)mentioning

confidence: 99%

“…A preparação da superfície da membrana de polissulfona, para recebimento da camada de quitosana, foi feita de acordo com a metodologia proposta por Huang et al (1999). O glutaraldeído foi utilizado como agente de ligação cruzada entre a polissulfona e o PVA.…”

Section: Iii212 Solução Polimérica De áLcool Polivinílico (Pva)unclassified

“…Foram estudadas soluções 1M de ácido acético com concentrações de 0,5%; 1,0%; e 1,5% de quitosana. As concentrações de quitosana foram selecionadas com base nos estudos realizados por Zhang et al (2010); Tan et al (2002);Huang et al (1999); Uragami et al, (1994); Beppu et al, (1999);e Tual et al, (2000). Várias membranas foram então sintetizadas nas condições especificadas.…”

Section: Iii213 Solução De Quitosanaunclassified

“…Como forma de diminuir a tensão interfacial entre a polissulfona e a quitosana, decidiu-se avaliar o efeito da aplicação da camada de PVA entre as camadas poliméricas, conforme proposto por Huang et al (1999).…”

Section: Iii222 Aplicação Da Camada De Pva Sobre a Membrana De Polunclassified

“…Concentrações de quitosana de 0,5%; 1,0%; e 1,5% foram selecionadas com base nos trabalhos de diversos pesquisadores URAGAMI et al, (1994);HUANG et al ,(1999);BEPPU et al, (1999);TUAL et al, (2000); TAN et al, (2002)). …”

Section: Iii2233 Influência Da Concentração De Quitosana Na Soluçunclassified

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Síntese e caracterização de membranas de filme fino composto de polissulfona/quitosana reticulada com glutaraldeído.

Nogueira¹

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pela co-orientação, imprescindível para a realização desta pesquisa; Ao meu marido, Claiton, e meus filhos, Lucas e Carolina, pelo carinho, apoio, incentivo e paciência; Aos meus pais, Togo e Ivone, pelo imenso apoio e pelo constante incentivo;A Luana Di Beo Rodrigues, Cristiane Naomi Kamikawachi, Karolina da Silva Borgo, Guilherme Yamakita e Cláudia Nunes, pela enorme colaboração na realização deste trabalho;Aos amigos do CIRRA, que de alguma forma estiveram presentes, me apoiando sempre; À Solvay Química do Brasil Ltda., em especial à Mônica Freire Dias Martins, pelo fornecimento da polissulfona; À Crane Nonwovens, pela doação dos suportes inertes para a fabricação das membranas; À FAPESP pelo financiamento dessa pesquisa; ABSTRACTA major obstacle to be overcome in order to have a greater use of membrane technology in liquids purification is the phenomenon of fouling. As a consequence, the development of membranes less prone to fouling is now the objective of numerous studies. Among the processes evaluated, the development of thin film composite membranes has has been the focus of many researches since it is possible to improve each layer independently, in order to improve the membrane performance as a whole.This work aimed to study the synthesis and characterization of thin film composite chitosan, crosslinked with glutaraldehyde, and polysulfone (PSF) membranes. PSF ultrafiltration membranes were produced by phase inversion via immersion precipitation to be used as porous support for the chitosan layer. The influence of PSF concentration in the polymeric solution; temperature of synthesis; air humidity, and membrane nonwoven support, CU414 and CU424 (Crane Nonwovens), on the membrane characteristics and performance were studied. The effect polyvinyl alcohol (PVA), crosslinked with glutaraldehyde, between PSF and chitosan layers, on the cast membrane structural stability was investigated. The influence of glutaraldehyde as a chitosan crosslinking agent on membrane selectivity, permeability, chemical stability, and toxicity was also evaluated. The results showed that increasing PSF concentration, decreasing temperature and increasing air humidity resulted in less porous membranes.The support media used were not suitable for the production of PSF membranes under the conditions used in this work due to its high porosity. The solution used to crosslink the PVA layer, composed of glutaraldehyde in aqueous solution of acetone, attacked the support media and the PSF membrane, preventing the application of the PVA layer between the PSF and chitosan layers. The use of glutaraldehyde as a chitosan crosslinking agent made the membrane less rough and more hydrophilic. Additionally, increasing glutaraldehyde concentration in the chitosan solution led to a decrease in membrane permeability, wich was attibutted to a compaction of the membrane structure, leading to a decreased mobility of polymer chains and a decrease in the membrane void volume.Membranes separation capacity was evaluated using two different ionic solutions...

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“…Vários pesquisadores (HUANG, et al, 1999;BEPPU et al, 1999;MUSALLE et al;MELLO et al, 2006) et al (1994).…”

Section: Ii64 a Quitosana (Qui)mentioning

confidence: 99%

Section: Iii212 Solução Polimérica De áLcool Polivinílico (Pva)unclassified

Section: Iii213 Solução De Quitosanaunclassified

Section: Iii222 Aplicação Da Camada De Pva Sobre a Membrana De Polunclassified

Section: Iii2233 Influência Da Concentração De Quitosana Na Soluçunclassified

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Síntese e caracterização de membranas de filme fino composto de polissulfona/quitosana reticulada com glutaraldeído.

Nogueira¹

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Pervaporation

Tsuru

Wang

2013

Kirk-Othmer Encyclopedia of Chemical Technology

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This review covers recent progresses made in pervaporation (PV). The performances of polymer and inorganic (zeolite and silica) membranes and organic–inorganic composite membranes are summarized according to different applications such as ethanol (EtOH) dehydration and the separation of organic–organic mixtures. The preparation methods and morphologies of different types of membranes are discussed. The transportation mechanism also is discussed based on solution‐diffusion and pore‐flow models.

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Preparation and characterization of HY zeolite-filled chitosan membranes for pervaporation separation

Chen

et al. 2000

J. Appl. Polym. Sci.

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Crosslinked chitosan composite membrane for the pervaporation dehydration of alcohol mixtures and enhancement of structural stability of chitosan/polysulfone composite membranes

Cited by 157 publications

References 32 publications

Síntese e caracterização de membranas de filme fino composto de polissulfona/quitosana reticulada com glutaraldeído.

Síntese e caracterização de membranas de filme fino composto de polissulfona/quitosana reticulada com glutaraldeído.

Pervaporation

Preparation and characterization of HY zeolite-filled chitosan membranes for pervaporation separation

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