Surface Modification of Acrylonitrile Fibers and Membrane by Nitrilase from Escherichia Coli BL21 (DE3)/pET-Nit

Li Li Feng; Jian Fei Zhang; Hui Luo; Zheng Li

doi:10.4028/www.scientific.net/AMR.175-176.651

Paper Titles

Treatment of Silk Fabric Using Doscorea Cirrhosa Extract
p.629

Formaldehyde-Free Flame Retardancy Finishing of Silk Fabric with an Organophosphorus Oligomer
p.634

A Study of Antimicrobial Property of Oxidized Cotton Fabric Finished with Amino-Terminated Hyperbranched Polymer
p.640

Research on Polypropylene Dyeing in Supercritical Carbon Dioxide
p.646

Surface Modification of Acrylonitrile Fibers and Membrane by Nitrilase from Escherichia Coli BL21 (DE3)/pET-Nit
p.651

The Mechanism and Characterization of Dye-Free Coloration on Tussah Silk Based on Tryptophan
p.656

Study on Dyeing of the Plasma Modification Silk Fabric in Supercritical Carbon Dioxide
p.661

Complex Dyeing of Antheraea pernyi Silk with Natural Indigo and Brazilwood
p.667

Dyeing Tussah with Liquids Containing Anthocyanins and Mordant
p.672

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 175-176Surface Modification of Acrylonitrile Fibers and...

Surface Modification of Acrylonitrile Fibers and Membrane by Nitrilase from Escherichia Coli BL21 (DE3)/pET-Nit

Abstract:

The surface of polyacrylonitrile fibers and membrane were modified by nitrilase from Escherichia coli BL21 (DE3)/pET-Nit. Escherichia coli BL21(DE3)/pET-Nit was able to convert nitrile groups on PAN fibers and membrane to corresponding carboxylic acid as indicated by X-ray photoelectron spectroscopy (XPS). An increase of O/C atomic ratio on the fiber and membrane surface showed an increase in hydrophilicity and fabric-dyeing efficiency. Strength of treated fiber decreased by only 1.17%, because only surfacial nitrile groups of acrylic fibers were hydrolyzed by E.coli BL21(DE3)/pET-Nit.