XPS study of PBO fiber surface modified by incorporation of hydroxyl polar groups in main chains

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• 作者：Tao Zhang ; Dayong Hu ; Junhong Jin ; Shenglin Yang ; Guang Li ; Jianming Jiang
• 关键词：Poly(p-phenylene benzoxazole) fiber ; Surface modification ; Hydroxyl groups ; XPS analysis
• 刊名：Applied Surface Science
• 出版年：2010
• 出版时间：15 January 2010
• 年：2010
• 卷：256
• 期：7
• 页码：2073-2075
• 全文大小：310 K

文摘

Dihydroxy poly(p-phenylene benzobisoxazole) (DHPBO), a modified poly(p-phenylene benzoxazole) (PBO) polymer containing double hydroxyl groups in polymer chains, was synthesized by copolymerization of 4,6-diamino resorcinol dihydrochloride (DAR), purified terephthalic acid (TA) and 2,5-dihydroxyterephthalic acid (DHTA). DHPBO fibers were prepared by dry-jet wet-spinning method. The effects of hydroxyl polar groups on the surface elemental compositions of PBO fiber were investigated by X-ray photoelectron spectroscopy (XPS). The results show that the ratio of oxygen/carbon on the surface of DHPBO fibers is higher than that on the surface of PBO fibers, which indicates the content of polar groups on the surface of DHPBO fiber increase compared with PBO fiber.