Preparation and Properties of Electrospun Soy Protein Isolate/Polyethylene Oxide Nanofiber Membranes

Abstract

Soy protein isolate (SPI) and polyethylene oxide (PEO) were dissolved in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and nonwoven nanofiber membranes were prepared from the solution by electrospinning. PEO functioned as a cospinning polymer in the process to improve the spinnability of SPI. The ratio of SPI to PEO was varied and the rest spinning conditions remained unchanged. The morphology of the nanofiber membranes, SPI and PEO distribution and phase structure in the fiber, crystallization and interaction between SPI and PEO, thermal properties and wettability of the membranes were studied. The results showed that the diameter of most of the nanofibers was in the range of 200-300 nm. SPI and PEO showed high compatibility in the fiber and SPI was homogeneously dispersed at nanoscale. Crystallization of SPI and PEO in the fiber was significantly different from that of their pure forms. All the nanofiber membranes showed superhydrophilicity. These nanofiber membranes can find importance in filtration and biomedical applications.

Fabrication and characterization of poly(ethylene oxide) templated nickel oxide nanofibers for dye degradation

“…4(b) represents the typical XRD pattern for pure PEO, with two diffraction peaks observed at 19.3 and 23.4°indicating the (120) and (112) View Article Online crystalline structure where (120) planes lie parallel to the PEO chain direction and (112) planes intersect the chain direction. 24 In addition to this, when the XRD pattern of nanofibers made up of PEO alone and that of NiO were compared, it was observed that the peaks due to the polymer completely disappeared after the calcination of the nanofibers, indicating the formation of phase pure NiO.…”

Development of novel pea flour‐based nanofibres by electrospinning method

“…This behaviour was explained by electrospinning jet path reduction. Then, the distribution transitioned from bimodal to unimodal distribution with decrease in branching (Xu et al, 2012). The reduced jet path resulted in larger diameter due to less stretching of the solution.…”

Antimicrobial Nanomaterials Derived from Natural Products—A Review

“…In 2009, Vega-Lugo and Lim [128] incorporated AITC into soy protein/PEO electrospun fibers and reported that release of the antimicrobial AITC increased substantially as relative humidity increased. Similarly, Xu et al [129] prepared soy protein/PEO hybrid nanofibers by dissolving both components in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). The diameter of the resulting fibers was in the range of 200–300 nm.…”