Preparation and Characterization of Lignosulfonate–Acrylonitrile Copolymer as a Novel Carbon Fiber Precursor

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• 作者：Keqiang Xia ; Qin Ouyang ; Yousi Chen ; Xuefei Wang ; Xin Qian ; Li Wang
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2016
• 出版时间：January 4, 2016
• 年：2016
• 卷：4
• 期：1
• 页码：159-168
• 全文大小：627K
• ISSN：2168-0485

文摘

A novel carbon fiber precursor was prepared from lignosulfonate (LS) with acrylonitrile (AN) via a two-step process consisting of esterification and free radical copolymerization. The LS–AN copolymer was characterized by FTIR, ¹H NMR, ¹³C NMR, UV, GPC, DSC, and TG. Continuous long precursor fibers with a brown color and a dense structure were prepared from the LS–AN copolymer by a wet spinning technique. Carbon fibers that were free of any visible voids and other defects were also obtained from the precursor fibers by thermal stabilization and carbonization. This study provided a promising way to develop partially biobased carbon fibers with desired mechanical properties for industrial applications.