|
Search / Korean Journal of Chemical Engineering
|
Korean Chemical Engineering Research, Vol.55, No.2, 214-219, 2017
SNIPS 공정을 이용한 블록공중합체 분리막의 구조 형성에 관한 연구
Fabrication of Block Copolymer Membranes via SNIPS Process
본 연구에서는 블록공중합체의 자기조립(Self-assembly) 성질과 상전이를 통한 비대칭의 다공성 구조를 형성하는 NIPS 기술을 결합한 SNIPS (Self-assembly and non-solvent induced phase separation) 공정을 이용하여 PS-b-P4VP 블록공중합체 분리막을 제조하였다. 기존의 연구는 단순히 원하는 구조 구현에만 집중되었고 SNIPS 공정상의 내재 변수(농도, 증발시간, 용매의 조성, 습도)들에 대한 체계적인 연구는 보고되지 않았다. 본 연구에서는 PS-b-P4VP 와 DMF, 1,4-Dioxane, THF, DI를 이용해 내재 변수의 영향을 정성적으로 분석하였다. 그 결과, 용액의 농도와 휘발성 용매의 비율이 적당하고 습도가 낮은 환경에서 모폴로지가 최적화 되었으며, PS-b-P4VP 분리막은 표면에 잘 구현된 실린더 구조가 형성되었고 75%의 높은 기공도와 약 18%의 표면 기공도를 가지는 것을 확인하였다.
In this work, we fabricated PS-b-P4VP block copolymer membranes from self-assembly and non-solvent induced phase separation (SNIPS), which combines the block copolymer self-assembly and conventional NIPS process. While previous studies mostly focused on the fabrication of well-defined structures, we systematically examined various processing parameters such as polymer concentration, solvent evaporation duration, solvent composition, and humidity, to optimized the membrane structures. As a result, the morphology of PS-b-P4VP membranes was optimized at a certain polymer concentration in solution and composition of volatile solvent at low humidity conditions, resulting in SNIPS separation membranes with well-defined nanopores on the surface, 75% of membrane porosity, and 18% of surface porosity.
[References]
- Geise GM, Lee HS, Miller DJ, Freeman BD, Mcgrath JE, Paul DR, J. Polym. Sci. B: Polym. Phys., 48(15), 1685, 2010
- Guillen GR, Pan YJ, Li MH, Hoek EMV, Ind. Eng. Chem. Res., 50(7), 3798, 2011
- Cho EH, Rhim JW, Macromol. Res., 23(2), 183, 2015
- Chen YW, Ying L, Yu WH, Kang ET, Neoh KG, Macromolecules, 36(25), 9451, 2003
- Kim IC, Yun HG, Lee KH, J. Membr. Sci., 199(1-2), 75, 2002
- Jung B, J. Membr. Sci., 229(1-2), 129, 2004
- Cha B, Chi S, Polym. Sci. Technol., 22(6), 553, 2011
- Jung H, Kim TJ, Bang J, Korean Chem. Eng. Res., 49(3), 352, 2011
- Lee J, Park B, Kim J, Park SB, Macromol. Res., 23(3), 291, 2015
- Kim TH, Jee KY, Lee YT, Macromol. Res., 23(7), 592, 2015
- Lee S, Kim SS, Korean Chem. Eng. Res., 54(1), 57, 2016
- Peinemann KV, Abetz V, Simon PFW, Nat. Mater., 6(12), 992, 2007
- Abetz V, Macromol. Rapid Commun., 36(1), 10, 2015
- Rangou S, Buhr K, Filiz V, Clodt JI, Lademann B, Hahn J, Jung A, Abetz V, J. Membr. Sci., 451, 266, 2014
- Clodt JI, Bajer B, Buhr K, Hahn J, Filiz V, Abetz V, J. Membr. Sci., 495, 334, 2015
- Yu H, Qiu X, Nunes SP, Peinemann KV, Angew. Chem.-Int. Edit., 126(38), 10236, 2014
- Nunes SP, Sougrat R, Hooghan B, Anjum DH, Behzad AR, Zhao L, Pradeep N, Pinnau I, Vainio U, Peinemann KV, Macromolecules, 43(19), 8079, 2010
- Clodt JI, Rangou S, Schroder A, Buhr K, Hahn J, Jung A, Filiz V, Abetz V, Macromol. Rapid Commun., 34(2), 190, 2013
- Gallei M, Rangou S, Filiz V, Buhr K, Bolmer S, Abetz C, Abetz V, Macromol. Chem. Phys., 214(9), 1037, 2013
- Hahn J, Filiz V, Rangou S, Lademann B, Buhr K, Clodt JI, Jung A, Abetz C, Abetz V, Macromol. Mater. Eng., 298, 1315, 2013
- Hilke R, Pradeep N, Behzad AR, Nunes SP, Peinemann KV, J. Membr. Sci., 472, 39, 2014
- Li X, Han Y, J. Mater. Chem., 21, 18024, 2011
- Jung A, Rangou S, Abetz C, Filiz V, Abetz V, Macromol. Mater. Eng., 297(8), 790, 2012
- Stegelmeier C, Filiz V, Abetz V, Perlich J, Fery A, Ruckdeschel P, Rosenfeldt S, Forster S, Macromolecules, 47(16), 5566, 2014
- Hahn J, Filiz V, Rangou S, Clodt J, Jung A, Buhr K, Abetz C, Abetz V, Procedia Eng., 44, 1844, 2012
- Karunakaran M, Nunes SP, Qiu XY, Yu HZ, Peinemann KV, J. Membr. Sci., 453, 471, 2014
- Phillip WA, O’Neill B, Rodwogin M, Hillmyer MA, Cussler E, ACS Appl. Mater. Interfaces, 2(3), 847, 2010
- Cha BJ, Chi SD, Kim JH, Korean Ind. Chem. News, 14(6), 2, 2011
- Phillip WA, Hillmyer MA, Cussler EL, Macromolecules, 43(18), 7763, 2010
- Susanto H, Ulbricht M, J. Membr. Sci., 327(1-2), 125, 2009
- Ramakrishna S, Ma Z, Matsuura T, Polymer Membranes in Biotechnology: Preparation, Functionalization and Application. Imperial College Press: 2011.
- Yip Y, McHugh AJ, J. Membr. Sci., 271(1-2), 163, 2006
- Chaturbedy P, Jagadeesan D, Eswaramoorthy M, ACS Nano, 4(10), 5921, 2010
- Kang S, Asatekin A, Mayes AM, Elimelech M, J. Membr. Sci., 296(1-2), 42, 2007
- Widjojo N, Chung TS, Weber M, Maletzko C, Warzelhan V, J. Membr. Sci., 383(1-2), 214, 2011
- Tiraferri A, Yip NY, Phillip WA, Schiffman JD, Elimelech M, J. Membr. Sci., 367(1), 340, 2011
- Cath TY, Childress AE, Elimelech M, J. Membr. Sci., 281(1-2), 70, 2006
- Yasukawa M, Mishima S, Shibuya M, Saeki D, Takahashi T, Miyoshi T, Matsuyama H, J. Membr. Sci., 487, 51, 2015
|