在超临界CO2中合成了具有交替结构的超高分子量聚(苯乙烯-马来酸酐)共聚物，与PVDF进行共混通过相互法制备复合膜，最后在γ-氨丙基三乙氧基硅烷(APTS )溶液中对共混膜进行改性。采用SEM、FT-IR-ATR接触角分别对膜表面形貌、化学组成和润湿特性进行表征，结果表明，采用 THF 为APTS溶剂时，膜表面含有大量的亲水基团，并具有明显的微-纳结构，水接触角＜10°，润湿特性表现为超亲水性。而采用乙醇为溶剂时，虽然具有微-纳结构，但由于表面亲水基团比较少，润湿特性表现为强的疏水特性，水接触角为(111±2)°。
A micro-nano hierarchical structure hybrid surface was fabricated based on a ultrahigh molecular weight poly(styrene-alt-maleic anhydride)(UHMWSMA).The UHMWSMA was synthesized in supercritical carbon dioxide fluid.The UHMWSMA/poly(vinylidene fluoride)(PVDF)blend membranes were prepared by phase inversion process.The hybrid surface was fabricated after modified by γ-aminopropyltriethoxysilane (APTS).The compatibility between UHMWSMA and PVDF were investigated by XRD and DSC.It demon-strates that the blend had better compatibility and the phase separation was prohibited during membrane prepa-ration.The hybrid surfaces morphologies and hydrophilicity were investigated.It was found that the hybrid lay-er was porous and micro-nano hierarchical structure and superhydrophilic.
参考文献
| [1] | Sonia Amigoni;Elisabeth Taffin de Givenchy;Mickael Dufay;Frederic Guittard .Covalent Layer-by-Layer Assembled Superhydrophobic Organic-Inorganic Hybrid Films[J].Langmuir: The ACS Journal of Surfaces and Colloids,2009(18):11073-11077. |
| [2] | Eun Kyu Her;Tae-Jun Ko;Kwang-Ryeol Lee .Bioinspired steel surfaces with extreme wettability contrast[J].Nanoscale,2012(9):2900-2905. |
| [3] | Zhang, L.;Zhang, X.;Dai, Z.;Wu, J.;Zhao, N.;Xu, J. .Micro-nano hierarchically structured nylon 6,6 surfaces with unique wettability[J].Journal of Colloid and Interface Science,2010(1):116-119. |
| [4] | Ning Zhao;Qiongdan Xie;Lihui Weng;Shengqing Wang;Xiaoyan Zhang .Superhydrophobic Surface from Vapor-Induced Phase Separation of Copolymer Micellar Solution[J].Macromolecules,2005(22):8996-8999. |
| [5] | Nan Gao;Yuying Yan .Characterisation of surface wettability based on nanoparticles[J].Nanoscale,2012(7):2202-2218. |
| [6] | Kulkami SA;Ogale SB;Vijayamohanan KP .Tuning the hydrophobic properties of silica particles by surface silanization using mixed self-assembled monolayers[J].Journal of Colloid and Interface Science,2008(2):372-379. |
| [7] | Lee D;Rubner MF;Cohen RE .All-nanoparticle thin-film coatings[J].Nano letters,2006(10):2305-2312. |
| [8] | Hou W;Wang QH .From superhydrophilicity to superhydrophobicity: The wetting behavior of a methylsilicone/phenolic resin/silica composite surface[J].Langmuir: The ACS Journal of Surfaces and Colloids,2007(19):9695-9698. |
| [9] | Jianfen Zheng;Aihua He;Junxing Li .Studies on the controlled morphology and wettability of polystyrene surfaces by electrospinning or electrospraying[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(20):7095-7102. |
| [10] | 王建华,朱利平,朱丽静,朱宝库,徐又一.超临界CO_2中两亲共聚物的合成及其对PVDF膜亲水化改性[J].功能材料,2012(01):73-76. |
| [11] | Zhu LP;Yi Z;Liu F;Wei XZ;Zhu BK;Xu YY .Amphiphilic graft copolymers based on ultrahigh molecular weight poly(styrene-alt-maleic anhydride) with poly(ethylene glycol) side chains for surface modification of polyethersulfone membranes[J].European Polymer Journal,2008(6):1907-1914. |
| [12] | Qiu G M;Zhu B K;Xu Y Y et al.Synthesis of ultra-high molecular weighttpoly(styrene-alt-maleic an-hydride)in supercritical carbon dioxide[J].Macromole-cules,2006,39:3231-3237. |
| [13] | N. Awanis Hashim;Yutie Liu;K. Li .Preparation of PVDF Hollow Fiber Membranes Using SiO2 Particles: The Effect of Acid and Alkali Treatment on the Membrane Performances[J].Industrial & Engineering Chemistry Research,2011(5):3035-3040. |
| [14] | Guang-Ming Qiu;Li-Ping Zhu;Bao-Ku Zhu .Grafting of styrene/maleic anhydride copolymer onto PVDF membrane by supercritical carbon dioxide:Preparation, characterization and biocompatibility[J].The Journal of Supercritical Fluids,2008(3):374-383. |
| [15] | Tezuka T;Tadanaga K;Hayashi A;Tatsumisago M .Inorganic-organic hybrid membranes prepared from 3-aminopropyltriethoxysilane and sulfuric acid as anhydrous proton conductors[J].Solid state ionics,2007(7/10):705-708. |
| [16] | Rzaev Z M O;Güner A;Can H K et al.Reactions of some anhydride-containing copolymers withγ-aminopro-pyltriethoxysilane[J].POLYMER,2001,42:5599-5606. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%