Grafting of polymers onto a carbon-fiber surface by ligand-exchange reaction of poly(vinyl ferrocene-co-vinyl monomer) with polycondensed aromatic rings of the surface
Grafting of polymers onto a carbon-fiber surface by ligand-exchange reaction of poly(vinyl ferrocene-co-vinyl monomer) with polycondensed aromatic rings of the surface
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DOI：
10.1002/pola.10268
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发表时间：
2002-06
期刊：
影响因子：
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通讯作者：
N. Tsubokawa;Nobuyuki Abe;Gang Wei;Jinhua Chen;Satoshi Saitoh;K. Fujiki
中科院分区：
文献类型：
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作者：
N. Tsubokawa;Nobuyuki Abe;Gang Wei;Jinhua Chen;Satoshi Saitoh;K. Fujiki
为了改善碳纤维的表面性能，研究了含乙烯基二茂铁（VFE）的共聚物与碳纤维缩聚芳环之间的配体交换反应，在碳纤维表面进行接枝改性。以2，2 ′-偶氮二异丁腈为引发剂，VFE与甲基丙烯酸甲酯（MMA）、苯乙烯等乙烯基单体进行自由基共聚合，制备了含VFE的共聚物。在氯化铝和铝粉存在下，将数均分子量为2.1 × 104的聚（VFE-co-MMA）与碳纤维加热，使共聚物接枝到碳纤维表面。接枝率达46.1%。相反，在不存在氯化铝的情况下，没有观察到共聚物的接枝。因此，可以认为该共聚物是通过共聚物中的二茂铁部分与碳纤维的稠合芳环之间的配体交换反应接枝到碳纤维表面的。碳纤维表面接枝共聚物链的摩尔数随着聚（VFE-co-MMA）分子量的增加而减少，这是因为碳纤维表面接枝共聚物的空间位阻随着聚（VFE-co-MMA）分子量的增加而增加。© 2002 Wiley Periodicals，Inc.聚合物科学杂志A部分：聚合物化学40：1868-1875，2002年
To improve the surface of carbon fiber, the grafting reaction of copolymer containing vinyl ferrocene (VFE) onto a carbon-fiber surface by a ligand-exchange reaction between ferrocene moieties of the copolymer and polycondensed aromatic rings of carbon fiber was investigated. The copolymer containing VFE was prepared by the radical copolymerization of VFE with vinyl monomers, such as methyl methacrylate (MMA) and styrene, using 2,2′-azobisisobutyronitrile as an initiator. By heating the carbon fiber with poly(VFE-co-MMA) (number-average molecular weight: 2.1 × 104) in the presence of aluminum chloride and aluminum powder, the copolymer was grafted onto the surface. The percentage of grafting reached 46.1%. On the contrary, in the absence of aluminum chloride, no grafting of the copolymer was observed. Therefore, it is considered that the copolymer was grafted onto the carbon-fiber surface by a ligand-exchange reaction between ferrocene moieties of the copolymer and polycondensed aromatic rings of carbon fiber. The molar number of grafted polymer chain on the carbon-fiber surface decreased with increasing molecular weight of poly(VFE-co-MMA) because the steric hindrance of grafted copolymer on the carbon-fiber surface increases with increasing molecular weight of poly(VFE-co-MMA). © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 1868–1875, 2002