Preparation and Characterization of pH-Responsive Poly(Vinyl-Alcohol)/Sodium Carboxymethylcellulose Nanofibers

Xiao Xue Zhang; Jun Sun; Jian Jun Wang; Li Xing Dai

doi:10.4028/www.scientific.net/AMR.796.132

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 796Preparation and Characterization of pH-Responsive...

Preparation and Characterization of pH-Responsive Poly(Vinyl-Alcohol)/Sodium Carboxymethylcellulose Nanofibers

Abstract:

pH-sensitivity nanofibers composited of poly (vinyl alcohol) (PVA) and sodium carboxymethylcellulose (Na-CMC) were prepared by electrospining. The structure, properties, and morphology of the nanofibers were investigated by Fourier transform infrared spectroscopy (FTIR), X-ray differential (XRD), scanning electron microscopy (SEM) and pH-sensitivity testing. It was found that the reswelling of the nanofibers was pH-responsive and relied on the content of Na-CMC. FTIR spectroscopy of the nanofibers confirmed that hydrogen bonds were formed between PVA and Na-CMC which may cause the stable increase of pH-sensitivity. XRD peaks gradually weakened and broadened with the increase of Na-CMC content, indicating the decrease of crystallinity_.Besides, the morphology of the PVA/ Na-CMC nanofibers was affected by the content of Na-CMC.

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Periodical:

Advanced Materials Research (Volume 796)

Pages:

132-135

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.796.132

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Online since:

September 2013

Authors:

Xiao Xue Zhang, Jun Sun, Jian Jun Wang, Li Xing Dai

Keywords:

Electro-Spinning, Hydrogen Bonds, Poly(vinyl alcohol), Swelling

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