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首页> 外文期刊>RSC Advances >Plasma functional polymerization of dopamine using atmospheric pressure plasma and a dopamine solution mist
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Plasma functional polymerization of dopamine using atmospheric pressure plasma and a dopamine solution mist

机译：使用大气压等离子体和多巴胺溶液雾气进行多巴胺的等离子体功能聚合

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By using DBD-type atmospheric pressure plasmas and a dopamine solution mist formed by a piezoelectric module, the possibility of depositing functional polymer films showing the physical and chemical characteristics of polydopamine without breaking the functional group of the dopamine has been investigated for different plasma voltages. The higher DBD voltages up to 3.0 kV decreased the functional groups such as catechol and amine (N/C ratio) relative to dopamine in the deposited polymer by increasing the dissociation of dopamine into atoms and small molecules due to higher electron energies. In contrast, the lower DBD voltages up to 1.5 kV increased the functional group and N/C ratio of dopamine in the deposited polymer by keeping the molecular structures of the dopamine due to lower electron energies. Therefore, the polymer deposited at the lower DBD voltages showed lower contact angles and higher metal absorption properties which are some of the surface modification characteristics of polydopamine. When the metal absorption properties of the polydopamine-like film deposited using the atmospheric pressure plasma of a low DBD voltage with a dopamine solution mist were compared with other metal absorbers for Cu, As, and Cr, the polydopamine-like film exhibited superior metal absorption properties. It is believed that this atmospheric pressure plasma process can be also applied to the plasma polymerization of other monomers without breaking the functional groups of the monomers.
机译：通过使用DBD型大气压等离子体和由压电模块形成的多巴胺溶液雾，已经研究了在不同的等离子体电压下沉积显示聚多巴胺的物理和化学特性的功能性聚合物膜而不破坏多巴胺的官能团的可能性。相对于多巴胺，高达3.0 kV的更高DBD电压通过增加多巴胺分解为原子和小分子（由于更高的电子能量）而相对于多巴胺降低了诸如儿茶酚和胺等官能团（N / C比）。相反，较低的DBD电压（最高1.5 kV）由于较低的电子能量而保持了多巴胺的分子结构，从而提高了沉积聚合物中多巴胺的官能团和N / C比。因此，以较低的DBD电压沉积的聚合物显示出较低的接触角和较高的金属吸收性能，这是聚多巴胺的一些表面改性特性。将使用低DBD电压的大气压等离子体和多巴胺溶液雾沉积的聚多巴胺样膜与其他金属吸收剂的Cu，As和Cr的金属吸收性能进行比较时，该聚多巴胺样膜表现出优异的金属吸收性属性。据信，这种大气压等离子体方法也可以应用于其他单体的等离子体聚合而不会破坏单体的官能团。

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