Templated Self-Assembly of a PS-Branch-PDMS Bottlebrush Copolymer

被引：61
作者：
Cheng, Li-Chen [1 ]
Gadelrab, Karim R.
Kawamoto, Ken [2 ]
Yager, Kevin G. [3 ]
Johnson, Jeremiah A. [2 ]
Alexander-Katz, Alfredo [1 ]
Ross, Caroline A. [1 ]
机构：
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
[3] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA
来源：
NANO LETTERS | 2018年 / 18卷 / 07期
关键词：
Block copolymer; bottlebrush copolymer; directed self-assembly; graphoepitaxy; solvent annealing; self-consistent field theory; POLYDIMETHYLSILOXANE BLOCK-COPOLYMER; THIN-FILMS; DIBLOCK COPOLYMERS; PHOTONIC CRYSTALS; POLYMERS; MACROMONOMERS; LITHOGRAPHY; NANOSTRUCTURES; PATTERNS; BEHAVIOR;
D O I：
10.1021/acs.nanolett.8b01389
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The self-assembly of block copolymers (BCPs) with novel architectures offers tremendous opportunities in nanoscale patterning and fabrication. Here, the thin film morphology, annealing kinetics, and topographical templating of an unconventional Janus-type "PS-branch-PDMS" bottle brush copolymer (BBCP) are described. In the Janus-type BBCP, each segment of the bottlebrush backbone connects two immiscible side chain blocks. Thin films of a Janus-type BBCP with M-n = 609 kg/mol exhibited 22 nm period cylindrical microdomains with long-range order under solvent vapor annealing, and the effects of as-cast film thickness, solvent vapor pressure, and composition of the binary mixture of solvent vapors are described. The dynamic self-assembly process was characterized using in situ grazing-incidence X-ray scattering. Templated self-assembly of the BBCP within lithographically patterned substrates was demonstrated, showing distinct pattern orientation and dimensions that differ from conventional BCPs. Self-consistent field theory is used to elucidate details of the templated self-assembly behavior within confinement.
引用
收藏
页码：4360 / 4369
页数：10
相关论文
共 47 条
[1]   In Situ Characterization of the Self-Assembly of a Polystyrene-Polydimethylsiloxane Block Copolymer during Solvent Vapor Annealing [J].
Bai, W. ;
Yager, K. G. ;
Ross, C. A. .
MACROMOLECULES, 2015, 48 (23) :8574-8584
[2]   Thin Film Morphologies of Bulk-Gyroid Polystyrene-block-polydimethylsiloxane under Solvent Vapor Annealing [J].
Bai, Wubin ;
Hannon, Adam F. ;
Gotrik, Kevin W. ;
Choi, Hong Kyoon ;
Aissou, Karim ;
Liontos, George ;
Ntetsikas, Konstantinos ;
Alexander-Katz, Alfredo ;
Avgeropoulos, Apostolos ;
Ross, Caroline A. .
MACROMOLECULES, 2014, 47 (17) :6000-6008
[3]   BLOCK COPOLYMER THERMODYNAMICS - THEORY AND EXPERIMENT [J].
BATES, FS ;
FREDRICKSON, GH .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 (01) :525-557
[4]   Graphoepitaxy of self-assembled block copolymers on two-dimensional periodic patterned templates [J].
Bita, Ion ;
Yang, Joel K. W. ;
Jung, Yeon Sik ;
Ross, Caroline A. ;
Thomas, Edwin L. ;
Berggren, Karl K. .
SCIENCE, 2008, 321 (5891) :939-943
[5]  
Brandrup J., 1990, POLYM HDB, V12, P265, DOI DOI 10.1016/0168-3659(90)90108-6
[6]   Nanostructure engineering by templated self-assembly of block copolymers [J].
Cheng, JY ;
Mayes, AM ;
Ross, CA .
NATURE MATERIALS, 2004, 3 (11) :823-828
[7]   Morphology, directed self-assembly and pattern transfer from a high molecular weight polystyrene-block-poly (dimethylsiloxane) block copolymer film [J].
Cheng, Li-Chen ;
Bai, Wubin ;
Martin, Eduardo Fernandez ;
Tu, Kun-Hua ;
Ntetsikas, Konstantinos ;
Liontos, George ;
Avgeropoulos, Apostolos ;
Ross, C. A. .
NANOTECHNOLOGY, 2017, 28 (14)
[8]   Bottlebrush Block Polymers: Quantitative Theory and Experiments [J].
Dalsin, Samuel J. ;
Rions-Maehren, Thomas G. ;
Beam, Marissa D. ;
Bates, Frank S. ;
Hillmyer, Marc A. ;
Matsen, Mark W. .
ACS NANO, 2015, 9 (12) :12233-12245
[9]   Structural Rearrangements in a Lamellar Diblock Copolymer Thin Film during Treatment with Saturated Solvent Vapor [J].
Di, Zhenyu ;
Posselt, Dorthe ;
Smilgies, Detlef-M. ;
Papadakis, Christine M. .
MACROMOLECULES, 2010, 43 (01) :418-427
[10]   Block copolymer thin films: Physics and applications [J].
Fasolka, MJ ;
Mayes, AM .
ANNUAL REVIEW OF MATERIALS RESEARCH, 2001, 31 :323-355
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