基于AFM微加工技术制造微结构模板中纳米级高分子聚合物的自组装
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摘要
介绍一种利用非对称聚合的三嵌段共聚物(SEBS(Styrene-Ethylene-Butylene-Styrene(SEBS))苯乙烯-乙烯-丁二烯-苯乙烯嵌段共聚物)自组装特性制造大规模整齐排列纳米阵列的分层方法,该方法混合了自下而上/自上而下两种策略。通过AFM(原子力显微镜)获得的硅基上各式各样的微观结构被用来作为球形和高长径比圆柱形聚合物排列的模板。通过原子力显微镜微加工技术的引入,实现了多畴有序阵列的定向排列,并利用硅基的形貌来控制三嵌段共聚物的自组装过程。这种"图外延"的方法可以被应用在软硬混合的情况下,即凝聚态物质系统。此外,自上而下和自下而上方法的混合运用,是一种新颖的实现分子自组装和普遍采用的形态学约束相并行的有效办法,同时也是实现二者并行的基础及沟通桥梁。
A mixed top-down/bottom-up hierarchical method was introduced to manufacture massively aligned nanoscale domains' arrays by using the self-assembly of asymmetrical poly( styrene-block-ethylene/butylene's-block-styrene)( SEBS)triblock copolymers. Silicon substrates of assorted microstructure that is made by AFM that machines approach is used to template the ball-shaped and high-aspect-ratio cylindrical polymer domains' alignment. The poly domains' regular arrays were orientated via AFM micromachining technique's introduction as an implement for dominating triblock copolymers' self-assembly procedure locally by using the silicon substrate's topography. This graph epitaxial methodology is exploitable in interbred hard/soft that is condensed substance systems for a variety of applications. Furthermore,pairing bottom-up and top-down methods is a bright,and perhaps basic,bridge between the parallel self-assembly of molecules and the morphological constraint of prevailing technology.
A mixed top-down/bottom-up hierarchical method was introduced to manufacture massively aligned nanoscale domains' arrays by using the self-assembly of asymmetrical poly( styrene-block-ethylene/butylene's-block-styrene)( SEBS)triblock copolymers. Silicon substrates of assorted microstructure that is made by AFM that machines approach is used to template the ball-shaped and high-aspect-ratio cylindrical polymer domains' alignment. The poly domains' regular arrays were orientated via AFM micromachining technique's introduction as an implement for dominating triblock copolymers' self-assembly procedure locally by using the silicon substrate's topography. This graph epitaxial methodology is exploitable in interbred hard/soft that is condensed substance systems for a variety of applications. Furthermore,pairing bottom-up and top-down methods is a bright,and perhaps basic,bridge between the parallel self-assembly of molecules and the morphological constraint of prevailing technology.
引文
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[3]Lynd N A,Meuler A J,Hillmyer M A.Polydispersity and block copolymer self-assembly[J].Progress in Polymer Science,2008,33(6):875-893.
[4]Hernandez J.R.,Checot F.,Gnanou Y.Toward‘smart’nanoobjects by self-assembly of block[J].Progress in Polymer Science,2005,30(4):691-724.
[5]Yan Yongda,Sun Tao,Liang Yingchun Investigation on AFM-based micro/nano-CNC machining system[J].International journal of machine tools&manufacture,2007,11(47):1651-1659.
[6]Hu Z.J.,Yan Yongda,Zhang Y.H.,Sun Tao,Dong Shen,Penetrating process analysis of AFM diamond tip[C].Proceedings of MNC2007,2007,21109(1):1231-1236,.
[7]Cao Yongzhi,Liang Yingchun,Dong Shen.A Multi-Wall Carbon Nanotube(MWCNT)Relocation Technique for Atomic Force Microscopy(AFM)Samples[J].Ultramicroscopy,2005,103(7):103-108.
[8]Xie Liang,Cao Yongzhi,Sun Tao,Yan Yongda,Dong Shen.Experimental study on molecular self-assembly process based on Microprobe Technology[J].Mechanical Engineer,2009,18(8):18-202009.
[9]赵亚溥.纳米与介观力学[M].北京:科学出版社,2014:149-150.ZHAO Ya Pu.Nano and mesoscopic mechanics[M].Beijing:Science Press,2014:149-150(In Chinese).
[10]Gao Bin,Dong Shen and Cao Yongzhi.The study of self-assembled ordered nano microstructures by drawing epitaxy[J].Mechanical Engineer,2007,7(7):18-20.
[11]Hu K X,Wu S,Huang MM.Effect of the Tip-Sample Contact Force on The Nanostructure Size Fabricated by Local Oxidation Nanolithography[J].Ultramicroscopy,2012,115(7):7-13.
[12]Kwon G,Chu H,Yoo J,et al.Fabrication of Uniform and High Resolution Copper Nanowire Using Intermediate Self-Assembled Monolayers Through Direct AFM LIthography[J].Nanotechnology,2014,23(7):1863-1871 2014.
[13]Cao Yongzhi,Study on the self-assembled ordered nano microstructures of Block copolymer films[D].Harbin:Harbin Institute of Technology,2006:43-45.
[14]Fanzio P,Manneschi C,Angeli E,Mussi V,Firpo G,Ceseracciu L.Modulating DNA translocation by a controlled deformation of a PDMS nanochannel device[J].Sci.Rep.,2012,2(6):791-793.
[15]stergaard P F,Matteucci M,Reisner W,Taboryski R.DNAbarcoding via counterstaining with AT/GC sensitive ligands in injection-molded all-polymer nanochannel devices[J].Analyst,2013,138(7):12497-1255.
[16]Geng Y Q,Yan Yongda,Zhao X S,Hu Z J.Fabrication of millimeter scale nanochannels using the AFM tip-based nanomachining method[J].Applied Surface Science,2013,266(3):386-394.
[17]Yan Yongda,Geng Y Q,Hu Z J,Zhao X S,Yu B W,Zhang Q.Fabrication of nanochannels with ladder nanostructure at the bottom using AFM nanoscratching method[J].Nanoscale Res.Lett.,2014,9(5):212-221.
[18]曹永智.嵌段共聚物自组装在微纳制造领域的应用研究.中国机械工程学会.全球化、信息化、绿色化提升中国制造业---2003年中国机械工程学会年会论文集(微纳制造技术应用专题)[C].西安.中国机械工程学会,2003:198-207.Cao Yongzhi.The application of block copolymer self-assembly in the field of micro nano manufacturing.China Mechanical Engineering Society.Globalization,information,green promotion of China's manufacturing industry-the 2003 annual meeting of the China Mechanical Engineering Society(micro nano manufacturing technology application topic)[C].Xi’an,China Mechanical Engineering Society:2003:198-207(In Chinese).
[19]赵亚溥.表面与界面物理力学[M].北京:科学出版社,2012:242.ZHAO Ya Pu.Surface and interface physical mechanics[M].Beijing:Science Press,2012:242(In Chinese).
[20]曹永智,董申,王铀,等.嵌段共聚物自组装模板---构造纳米结构的一种新方法[J].纳米技术与精密工程,2003,01(1):11-16.CAO Yong Zhi,DONG Shen,WANG You,et al.Block copolymer self assembled templates-a new method for the construction of nanostructures[J].nanotechnology and precision engineering,volume 01,page11-16,January,2003.(In Chinese)
[21]周向阳,蒋庄德,俞瑞霞,等.基于纳米压入技术的新型MEMS/NEMS材料力学行为表征[J].机械强度,2008,30(2):199-206.ZHOU Xiang Yang,JIANG ZhuangDe,YU RuiXia,et al.based on nanoindentation technology,the mechanical behavior of the new MEMS/NEMS material is characterized by[J].Journal of Mechanical Strength,2008,30(2):199-206(In Chinese)