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Preparation of hybrid materials containing copolyimides covalently linked with carbon nanotubes

机译：包含与碳纳米管共价连接的共聚酰亚胺的杂化材料的制备

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摘要

The key to a successful advance of membrane separation process in industrial application is the availability of suitable membrane materials. Separation tasks such as the removal of sulfur containing aromatics from fuels, amongst others, issue a challenge to researchers to develop highly selective and permeable membrane materials which also show sufficient resistance towards the feed components as well as towards the operation conditions. The preparation of hybrid materials is an opportunity to achieve such suitable membrane materials. In this work the preparation of homogeneous hybrid membranes from copolyimides covalently linked with carbon nanotubes (CNTs) was investigated. Hydroxyl-functionalized CNTs were obtained in a two step reaction and characterized. Different procedures to prepare homogenous hybrid films by ultrasound dispersion were investigated and appropriate instructions were found. Sorption capacity tests showed that the covalent incorporation of hydroxyl-functionalized CNTs does not affect the solution selectivity of the copolyimide.
机译：在工业应用中成功进行膜分离工艺的关键是合适膜材料的可用性。分离任务，例如从燃料中去除含硫芳烃，对研究人员提出了挑战，要求开发高选择性和可渗透性的膜材料，该膜材料还应具有对进料成分和操作条件的足够抵抗力。混合材料的制备是获得这种合适的膜材料的机会。在这项工作中，研究了由与碳纳米管（CNT）共价连接的共聚酰亚胺制备均质杂化膜。在两步反应中获得了羟基官能化的CNT，并对其进行了表征。研究了通过超声分散制备均质杂化膜的不同程序，并找到了适当的说明。吸附能力测试表明，羟基官能化CNT的共价结合不会影响共聚酰亚胺的溶液选择性。

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