合成了系列具有仿生结构的多硅共聚物,即含大量—Si(OR)3基团的碳链共聚物:其柔韧的主链类似于攀爬植物的“主干”、众多的—Si(OR)3基团类似于攀爬植物的“吸盘”、众多的离子交换基团或可以转化为离子交换基团的官能团则类似于植物的“果实”.以其与聚乙烯醇(PVA)进行溶胶—凝胶(sol-gel)反应,可以得到均一透明、稳定的杂化离子膜.该种类型膜可以应用于扩散渗析领域,对废液中的酸或碱进行分离和回收.分离效果表明,膜兼具高的渗析通量和选择性,渗析系数范围为0.006～0.015m/h,分离因子范围为18.5～95.7,从而突破了传统膜通量和选择性之间必须作出妥协的折衷(trade-off)效应.
参考文献
| [1] | Xu TW .Ion exchange membranes: State of their development and perspective[J].Journal of Membrane Science,2005(1/2):1-29. |
| [2] | Romero P G .Hybrid organic-inorganic materials in search of synergic activity[J].Advanced Materials,2001,13:163-174. |
| [3] | Xuejun Cui;Shuangling Zhong;Hongyan Wang .Organic-inorganic hybrid proton exchange membranes based on silicon-containing polyacrylate nanoparticles with phosphotungstic acid[J].Journal of Power Sources,2007(1):28-35. |
| [4] | Wu C M;Xu T W;Liu J S.Charged hybrid membranes by the sol-gel approach:present states and future perspectives[A].Nova Science Publishers,Inc,2006:1-44. |
| [5] | Nagarale RK;Shahi VK;Rangarajan R .Preparation of polyvinyl alcohol-silica hybrid heterogeneous anion-exchange membranes by sol-gel method and their characterization[J].Journal of Membrane Science,2005(1/2):37-44. |
| [6] | R.K.Nagarale;G.S.Gohil;Vinod K.Shahi;R.Rangarajan .Organic-Inorganic Hybrid Membrane:Thermally Stable Cation-Exchange Membrane Prepared by the Sol-Gel Method[J].Macromolecules,2004(26):10023-10030. |
| [7] | Wu CM;Xu TW;Gong M;Yang WH .Multi-step sol-gel process and its effect on the morphology of polyethylene oxide (PEO)SiO2 anion-exchange hybrid materials[J].European Polymer Journal,2007(4):1573-1579. |
| [8] | Kim Y M;Choi S H;Lee H C et al.Organic inorganic composite membranes as addition of SiO2 for high temperature-operation in polymer electrolyte membrane fuel cells (PEMFCs)[J].Electrochimica Acta,2004,49:4787-4796. |
| [9] | Yo Jin Kim;Won Choon Choi;Seong Ihl Woo;Won Hi Hong .Proton conductivity and methanol permeation in Nafion~(TM)/ORMOSIL prepared with various organic silanes[J].Journal of Membrane Science,2004(1/2):213-222. |
| [10] | Yonghui Wu;Jingyi Luo;Cuiming Wu .Bionic Multisilicon Copolymers Used As Novel Cross-Linking Agents for Preparing Anion Exchange Hybrid Membranes[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2011(20):6474-6483. |
| [11] | Wang H;Wu C M;Wu Y H et al.Cation exchange hybrid membranes based on PVA for alkali recovery through diffusion dialysis[J].Journal of Membrane Science,2011,376:233-240. |
| [12] | Wu C M;Wu Y H;Luo J Y et al.Anion exchange hybrid membranes from PVA and multi-alkoxy silicon copolymer tailored for diffusion dialysis process[J].Journal of Membrane Science,2010,356:96-104. |
| [13] | Wu Y H;Wu C M;Xu T W et al.Novel anion-exchange organic inorganic hybrid membranes:preparation and characterizations for potential use in fuel cells[J].Journal of Membrane Science,2008,321:299-308. |
| [14] | Xiao X L;Wu C M;Cui P et al.Cation exchange hybrid membranes from SPPO and multi-alkoxy silicon copolymer:Preparation,properties and diffusion dialysis performances for sodium hydroxide recovery[J].Journal of Membrane Science,2011,379:112-120. |
| [15] | Wu C M;Gu J J;Wu Y H.Preparation of novel carboxylic acid type PVA-SiO2 hybrid membranes for alkali recovery using diffusion dialysis[J].,2012 |
| [16] | Wu YH;Wu CM;Gong M;Xu TW .New anion exchanger organic-inorganic hybrid materials and membranes from a copolymer of glycidylmethacrylate and gamma-methacryloxypropyl trimethoxy silane[J].Journal of Applied Polymer Science,2006(4):3580-3589. |
| [17] | Wu Y H;Wu C M;Li Y et al.PVA silica anion-exchange hybrid membranes prepared through a copolymer crosslinking agent[J].Journal of Membrane Science,2010,350:322-332. |
| [18] | Wu Y H;Wu C M;Xu T W et al.Novel anion-exchange organic inorganic hybrid membranes prepared through sol-gel reaction of multi-alkoxy precursors[J].Journal of Membrane Science,2009,329:236-245. |
| [19] | Kim DS;Park HB;Rhim JW;Lee YM .Preparation and characterization of crosslinked PVA/SiO2 hybrid membranes containing sulfonic acid groups for direct methanol fuel cell applications[J].Journal of Membrane Science,2004(1/2):37-48. |
| [20] | Ying Xiong;Qing Lin Liu;Ai Mei Zhu;Si Meng Huang;Qing Hua Zeng .Performance Of Organic-inorganic Hybrid Anion-exchange Membranes For Alkaline Direct Methanol Fuel Cells[J].Journal of Power Sources,2009(2):328-333. |
| [21] | Luo J Y;Wu C M;Wu Y H et al.Diffusion dialysis of hydrochloride acid at different temperatures using PPO-SiO2 hybrid anion exchange membranes[J].Journal of Membrane Science,2010,347:240-249. |
| [22] | Stachera DM.;Mika AM.;Dickson JM.;Childs RF. .Acid recovery using diffusion dialysis with poly(4-vinylpyridine)-filled microporous membranes[J].Journal of Membrane Science,1998(1):119-127. |
| [23] | Brian J. Robbins;R.W. Field;S.T. Kolaczkowski;A.D. Lockett .Rationalisation of the relationship between proton leakage and water flux through anion exchange membranes[J].Journal of Membrane Science,1996(1):101-110. |
| [24] | Xiong Y;Fang J;Zeng QH;Liu QL .Preparation and characterization of cross-linked quaternized poly(vinyl alcohol) membranes for anion exchange membrane fuel cells[J].Journal of Membrane Science,2008(1/2):319-325. |
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