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Polymers 2018, 10(12), 1330; https://doi.org/10.3390/polym10121330

Effect of Potassium Permanganate Modification on Plasticized Spinning Polyacrylonitrile Fibers with Different Diameters

1,2,* and 3
1
School of medicine and chemical engineering, Zhenjiang College, Zhenjiang 212003, China
2
Zhenjiang Key Laboratory of Functional Chemistry, Zhenjiang 212003, China
3
Zhenjiang Customs, Zhenjiang 212003, China
*
Author to whom correspondence should be addressed.
Received: 15 October 2018 / Revised: 15 November 2018 / Accepted: 27 November 2018 / Published: 1 December 2018
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Abstract

Plasticized spinning polyacrylonitrile (PAN) fibers with different diameters were chemically modified by potassium permanganate (KMnO4). The modification effects of different diameter fibers were studied for the first time. Differential scanning calorimetry (DSC) results show that, compared with the large diameter ones, small diameter modified fibers show lower cyclization starting temperature (Ti) and activation energy (E). Both kinds of fibers exhibit better modification effects compared with solution-spun fibers. For the small diameter fibers, chemical modification can occur at low treatment temperature, even at 70 °C. X-ray diffraction analysis (XRD) results show that modification not only occurs in the amorphous region of the fibers but also in the crystalline region. View Full-Text
Keywords: plasticized spinning; diameter; potassium permanganate; chemical modification plasticized spinning; diameter; potassium permanganate; chemical modification
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, X.; Dang, X. Effect of Potassium Permanganate Modification on Plasticized Spinning Polyacrylonitrile Fibers with Different Diameters. Polymers 2018, 10, 1330.

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