Polyacryl nitrile fiber

Among the most interesting synthetic fibers are nylon and its various brands (they are called polyamide fibers as they are built from polyamide molecular chains), terylene (polyether fibers), and lastly orlon and acrylon (polyacryl nitrile fibers). 

For systems containing polyethylene oxide (PEO) and polyacrylic nitrile (PAN), the charge carriers are the primary polymer [19] and some volatile solvents (water and N, N-dimethyl formamide). When a volatile solvent is the principal charge carrier, the charges are lost when the solvent evaporates. This causes lower charge densities than those theoretically calculated, resulting in larger diameter fibers. 

Rhodococcus rhodochrous was used for the hydrolysis of both granular PAN and acrylic fibers by nitrile hydratase and amidase (Tauber et al., 2000). Similarly, Agrobacterium tumefaciens (BST05) was found to convert polyacylonitrile into polyacrylic acid by nitrile hydratase and amidase (Fischer-Colbrie et al., 2006). Nitrilase was also used for the surface hydrolysis of PAN from Micrococcus luteus BST20 (Fischer-Colbrie et al., 2007). However, polyamidase from Nocardia farci-nica leads to an increase of polar groups on the surface of PA, which was measured by tensiometry (Heumann et al., 2009). 

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