生物医学应用中基于季铵化聚砜/聚乙烯醇的膜性能最大化:流变学研究

World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering Pub Date : 2015-11-02 DOI:10.5281/zenodo.1110916

A. Filimon, R. Albu, E. Avram

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引用次数: 0

摘要

研究了季铵化聚砜和聚乙烯醇共混物在n -甲基-2-吡咯烷酮中对聚合物结构特性、聚合物混合物组成以及相互作用类型的流变响应。结果表明，体系中聚乙烯醇组分的变化决定了体系流变性能的变化，表明聚乙烯醇具有增塑剂的作用。因此，用非线性流动曲线描述复合体系的流变行为，表明聚乙烯醇含量对聚砜溶液的影响，以便于随后制备生物活性膜。

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Maximizing Performance of the Membranes Based on Quaternized Polysulfone/Polyvinil Alcohol for Biomedical Applications: Rheological Investigations

The rheological response of blends obtained from quaternized polysulfone and polyvinyl alcohol in N-methyl-2- pyrrolidone as against structural peculiarity of polymers from the blend, composition of polymer mixtures, as well as the types of interactions were investigated. Results show that the variation of polyvinyl alcohol composition in the studied system determines changes of the rheological properties, suggesting that the PVA acts as a plasticizer. Consequently, rheological behavior of complex system, described by the nonlinear flow curve, indicates the impact of polyvinil alcohol content to polysulfone solution, in order to facilitate the subsequently preparation of bioactive membranes.

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World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering

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