Immobilization of enzymes onto modified polyacrylonitrile membranes: Application of the acyl azide method

Hicke, Hans‐Georg; Böhme, Peter; Becker, Margot; Schulze, Heike; Ulbricht, Mathias

doi:10.1002/(sici)1097-4628(19960523)60:8<1147::aid-app7>3.3.co;2-l

Cited by 10 publications

(12 citation statements)

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“…of the particles has been established. These PAN nanoparticles may be particularly efficient for applications such as enzyme immobilization [31], pigments, and carbon source [32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization process

Boguslavsky

Baruch

Margel

2005

Journal of Colloid and Interface Science

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“…of the particles has been established. These PAN nanoparticles may be particularly efficient for applications such as enzyme immobilization [31], pigments, and carbon source [32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization process

Boguslavsky

Baruch

Margel

2005

Journal of Colloid and Interface Science

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“…Este procedimento pode resultar na obtenção de membranas cuja variação máxima na permeabilidade relativa é de ± 15% [7] . As membranas porosas de PAN que não foram submetidas ao tratamento térmico antes da secagem em etanol, sofreram colapso dos poros, como é ilustrado na seção transversal da Figura 6a.…”

Section: Efeito Do Tratamento Térmico Da Membranaunclassified

Preparação, caracterização e aplicação de membranas anisotrópicas de poliacrilonitrila

1999

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A pervaporação, que é um dos processos com membranas empregado em separações seletivas específicas, como misturas azeotrópicas, misturas diluídas e misturas orgânicas, tem despertado um grande interesse nos últimos anos. Neste trabalho foram estudadas a influência de parâmetros, tais como concentração da solução polimérica, tempo de exposição, concentração de aditivo e temperatura de tratamento térmico na preparação de membranas assimétricas de poliacrilonitrila. Em função destes parâmetros, as membranas foram observadas por microscopia eletrônica de varredura (MEV), e determinada a cinética de precipitação em experimentos de transmissão de luz. Os resultados mostram que a precipitação é instantânea. As membranas compostas de poliacrilonitrila, obtidas pelo espalhamento de uma solução diluída de poli(álcool vinílico) sobre as membranas assimétricas de poliacrilonitrila, foram caracterizadas na separação de misturas de água/etanol por pervaporação. Os resultados foram comparados com a membrana comercial da GFT de poli(álcool vinílico)/poliacrilonitrila.

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“…Monodispersed polyacrylonitrile (PAN) microspheres have wide applications in enzyme immobilization,1 pigments,2 and excellent precursor as carbon fiber3 due to their excellent characteristics, such as good chemical stability, oxidation‐resistant, solvent‐resistant, and easier to react with other reactants 4. Besides, the polar nitrile group in the acrylonitrile provides a strong intermolecular force between polymer chains, which results in good rigidity of PAN microspheres.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of monodispersed polyacrylonitrile microspheres by dispersion polymerization

Zhang

Jiang

et al. 2012

J of Applied Polymer Sci

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Monodispersed polyacrylonitrile (PAN) microspheres shape have been successfully synthesized by dispersion polymerization in the presence of polyvinylpyrolidone (PVP) as stabilizer. Transmission Electron Microscopy (TEM) and Particle Size and Distribution Analyzer were used to characterize the morphology and dispersibility of PAN microspheres, respectively. Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) were applied to characterize the structure of PAN. Finally, the crystallinity of PAN microspheres was investigated by X-ray Diffraction (XRD). The results show that PAN microspheres have a regular sphere shape and narrow dispersity with a monodispersity index of 1.17. The crystallization of PAN and the existence of PVP layer affect the morphology of PAN microspheres. The effects of various polymerization factors on the particle size distribution of PAN microspheres have also been studied.

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Immobilization of enzymes onto modified polyacrylonitrile membranes: Application of the acyl azide method

Cited by 10 publications

References 0 publications

Synthesis and characterization of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization process

Synthesis and characterization of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization process

Preparação, caracterização e aplicação de membranas anisotrópicas de poliacrilonitrila

Synthesis of monodispersed polyacrylonitrile microspheres by dispersion polymerization

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