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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of polyaniline using horseradish peroxidase immobilized on plasma-functionalized polyethylene surfaces as initiator
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Synthesis of polyaniline using horseradish peroxidase immobilized on plasma-functionalized polyethylene surfaces as initiator

机译：以固定在等离子官能化聚乙烯表面上的辣根过氧化物酶为引发剂合成聚苯胺

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The doping of semiconducting conjugated polymers (e.g., polyaniline, PANI) can result in the elimination of the bandgap, leading to high electrical conductivities (comparable to metals). Doped PANI is totally insoluble and thus nonprocessable, which considerably limits its practical applications. Synthesis of PANI using immobilized horseradish peroxidase (HRP) as a catalyst in aqueous solutions can open up additional possibilities for applications through the direct synthesis of controlled-thickness PANI layers on various substrate surfaces. The RF plasma-enhanced surface functionalization of polyethylene and the covalent immobilization of HRP are discussed, and the polymerization of aniline initiated by immobilized HRP is presented. The nature of plasma-grafted surface functionalities on the substrate surfaces and the formation of PANI are demonstrated using X-ray photoelectron spectroscopy and attenuated total reflectance Fourier transform IR spectroscopy. The molecular weight distribution of PANI is evaluated with gel permeation chromatography, and the activity of the immobilized enzyme is monitored using UV spectroscopy. (C) 2003 Wiley Periodicals, Inc. [References: 25]
机译：半导体共轭聚合物（例如，聚苯胺，PANI）的掺杂可导致带隙的消除，从而导致高电导率（与金属相比）。掺杂的PANI是完全不溶的，因此不可加工，这大大限制了其实际应用。使用固定的辣根过氧化物酶（HRP）作为水溶液中的催化剂合成PANI，可以通过在各种基材表面上直接合成厚度受控的PANI层，为应用提供更多的可能性。讨论了射频等离子体增强聚乙烯的表面功能化和HRP的共价固定化，并介绍了固定化HRP引发的苯胺聚合。使用X射线光电子能谱和衰减的全反射傅里叶变换红外光谱法证明了在基材表面上等离子接枝的表面功能的性质以及PANI的形成。用凝胶渗透色谱法评估PANI的分子量分布，并使用UV光谱法监测固定化酶的活性。 （C）2003 Wiley Periodicals，Inc. [参考：25]

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