Preparation, Characterization and Properties of Novel PVDF-g-PNIPAAm/PVDF Blending Hollow Fiber Membrane

摘要：

Poly (vinylidene Fluoride)-graft-Poly (Nisopropylacrylamide)/ Poly (vinylidene Fluoride) (PVDF-g-PNIPAAm/PVDF) blending hollow fiber membranes were prepared via dry-wet spinning technique by using N, Ndimethylformamide (DMF) as solvent and polyethylene glycol (PEG) as poremaking agent. The chemical structures of the blending membrane were characterized by Fourier transform infrared spectroscopy (FT-IR), the cross-section morphology was obtained from Scanning electron microscope (SEM). The influence of blending ratio of PVDF-g-PNIPAAm/PVDF on the morphology, thermal property, hydrophilicity and pure water permeation were investigated. The results showed that with the increasing of the blending ratio, the porosity, hydrophilicity and pure water flux of the blending membranes were improved, and the melting point (Tm) decreased. The hollow fiber membrane fabricated with blending ratio of 50/50 (wt％) exhibited distinct temperature-sensitive behaviors, that is, the pure water flux decrease drastically at around 31℃ for the phase transition of grafting PNIPAAm chains.

关键词： poly(vinylidene fluoride) PVDF-o-PNIPAAm hollow fiber membrane temperature-sensitivity blending

作者: SHEN Xiang ZHAO Yi-ping CHEN Li YANG Duo HAO Yang LIU Xiao-hong WANG Fang-qi

作者单位: Key Laboratory of Hollow Fiber Membrane Materials and Membrane Processes of the Ministry of Education, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, P. R. China

会议类型: 国际会议

会议名称: 2010 International Forum on Biomedical Textile Materials(2010国际纺织生物医用论坛)

会议地点: 上海

会议语种:英文

页码: 59-64

在线出版日期: 2010-05-28（万方平台首次上网日期，不代表论文的发表时间）