摘要
随着超滤技术应用范围的不断开拓和新技术工业领域的相继出现,极待开发机械强度好并具有优良的耐温性、耐生物侵蚀性、耐酸碱和耐有机溶剂性等高性能的超滤膜材料,以满足在苛刻条件下的分离、提纯、浓缩与富集以及高温灭菌过程的需要。多年来,国内外学者陆续将多种合成高分子材料用于超滤分离技术中,特别是杂环高分子如聚酰亚胺等,其优良的机械性能、耐温性和耐生物侵蚀性颇引人注目。但是,在已开发的合成高分子超滤膜材料中,由于某些分子的主链上含有—CN、—CONH—、—COOR、—CH_2O—、
A novel polyphenylquinoxaline ultrafiltration (UF) membrane prepared by a phase inversion method was reported in this paper. The effects of some factors in preparation on membrane performance, such as temperature and duration of heat-treatment, and polymer concentration, were studied. The pure water flux and retention of bovine serum albumin (BSA) and chymotrypsinum (CMP) used as ball standard matters by membrane have been quantitatively determined. The morphological structure of polyphenylquinoxaline UF membrane was observed by SEM.The results of experiments showed that the membrane exhibited better permeability and high selectivity, particularly useful for the separation of BSA. When suitable preparing condition were employed, the membranes showed good strength, high hydrolytic stability and high heat-resistant qualities. The upper limit of working temperature could reach 120℃.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1992年第4期478-483,共6页
Acta Polymerica Sinica
关键词
纯水透过率
截留率
超滤
PPQ
Polyphenylquinoxaline, Ultrafiltration membrane Flux, Retention
