制备了聚偏氟乙烯(PVDF)接枝N-异丙基丙烯酰胺(NIPAAm)共聚物(PVDF-g-PNIPAAm),进而采用干-湿法纺丝工艺,首次纺制出温敏PVDF-g-PNIPAAm中空纤维膜.通过红外光谱(FT-IR)、X射线衍射(XRD)、差示扫描量热仪(DSC)、扫描电镜(SEM)等对中空纤维膜的结构和形态进行了表征与研究.研究结果表明,和PVDF中空纤维膜相比,PVDF-g-PNIPAAm中空纤维膜具有相同的晶型结构,但结晶度明显降低,导致熔融峰值温度降低;由于亲水性的增加,PVDF-g-PNIPAAm接枝共聚物纤维膜形成较大的指状孔结构和粗糙的内外表面,且具有较高的孔隙率.
参考文献
| [1] | Xie R;Li Y;Chu L Y .[J].Journal of Membrane Science,2007,289:76-85. |
| [2] | 1wata H;Oodate M;Uysms Y et al.[J].Journal of Membrane Science,1991,55:119-130. |
| [3] | Hesampour M;Huuhilo T;Makinen K;Manttari M;Nystrom M .Grafting of temperature sensitive PNIPAAm on hydrophilised polysulfone UF membranes[J].Journal of Membrane Science,2008(1/2):85-92. |
| [4] | Liang L;Feng X D;Peurrung L et al.[J].Journal of Membrane Science,1999,162:243-246. |
| [5] | Liang L;Feng X D;Peurrung L et al.[J].Journal of Membrane Science,2000,177:97-108. |
| [6] | Ying L.;Kang ET.;Neoh KG. .Synthesis and characterization of poly(N-isopropylacrylamide)-graft-poly(vinylidene fluoride) copolymers and temperature-sensitive membranes[J].Langmuir: The ACS Journal of Surfaces and Colloids,2002(16):6416-6423. |
| [7] | 陈莉,陆尔力,王闻宇,冯霞,赵义平.温敏型聚偏氟乙烯膜材料的合成及表征[J].功能材料,2007(12):1990-1992. |
| [8] | Guo Y F;Feng X;Chen L et al.[J].Journal of Applied Polymer Science,2010,116:1005-1009. |
| [9] | Cha BJ;Yang JM .Preparation of poly(vinylidene fluoride) hollow fiber membranes for microfiltration using modified TIPS process[J].Journal of Membrane Science,2007(1/2):191-198. |
| [10] | Mohajor B-E E;Heymans N .[J].Polymer,2001,42:5661-5667. |
| [11] | Khulbe KC;Feng CY;Hamad F;Matsuura T;Khayet A .Structural and performance study of micro porous polyetherimide hollow fiber membranes prepared at different air-gap[J].Journal of Membrane Science,2004(1/2):191-198. |
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