使用细菌对聚砜-聚氨酯共混中空纤维膜进行生物降解过程——性能和孔隙率变化评估

Biodegradation Process of PSF-PUR Blend Hollow Fiber Membranes Using Bacteria-Evaluation of Changes in Properties and Porosity.

作者信息

Sikorska Wioleta, Milner-Krawczyk Małgorzata, Wasyłeczko Monika, Wojciechowski Cezary, Chwojnowski Andrzej

机构信息

Nałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 Str., 02-109 Warsaw, Poland.

Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., 00-644 Warsaw, Poland.

出版信息

Polymers (Basel). 2021 Apr 16;13(8):1311. doi: 10.3390/polym13081311.

DOI:10.3390/polym13081311

PMID:33923596

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8073714/

Abstract

This work was focused on biodegradation with bacteria studies of PSF-PUR blend semipermeable hollow fiber membranes that possibly can undergo a partial degradation process. Hollow fiber membranes were obtained from polysulfone (PSF) and polyurethane (PUR) containing ester bonds in the polymer chain in various weight ratios using two solvents: ,-Dimethylmethanamide (DMF) or -Methylpyrrolidone (NMP). The membranes that underwent the biodegradation process were tested for changes in the ultrafiltration coefficient (UFC), retention and cut-off point. Moreover, the membranes were subjected to scanning electron microscopy (SEM), MeMoExplorer Software and Fourier-transform infrared spectroscopy (FT-IR) analysis. The influence of and its metabolites has been proven by the increase in UFC after biodegradation and changes in the selectivity and porosity of individual membranes after the biodegradation process.

摘要

这项工作聚焦于对聚砜-聚氨酯（PSF-PUR）共混半透中空纤维膜进行细菌生物降解研究，该膜可能会经历部分降解过程。使用两种溶剂：N,N-二甲基甲酰胺（DMF）或N-甲基吡咯烷酮（NMP），以不同重量比从聚合物链中含有酯键的聚砜（PSF）和聚氨酯（PUR）制备中空纤维膜。对经历生物降解过程的膜进行超滤系数（UFC）、截留率和截留分子量的变化测试。此外，对膜进行扫描电子显微镜（SEM）、MeMoExplorer软件和傅里叶变换红外光谱（FT-IR）分析。生物降解后UFC的增加以及生物降解过程后各膜选择性和孔隙率的变化证明了细菌及其代谢产物的影响。