Highly oriented and ordered microstructures in block copolymer films
- SCNU‐TUE Joint Laboratory of Device Integrated Responsive Materials (DIRM) South China Normal University No. 378, West Waihuan Road, Guangzhou Higher Education Mega Center, 510006, Guangzhou China
- Department of Physics and Astronomy, and Collaborative, Innovation Center of IFSA (CICIFSA) Shanghai Jiaotong University Shanghai 200240 People's Republic of China
- Polymer Science and Engineering Department University of Massachusetts Amherst Massachusetts 01003 USA, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 China, Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road, Berkeley California 94720 USA
- SCNU‐TUE Joint Laboratory of Device Integrated Responsive Materials (DIRM) South China Normal University No. 378, West Waihuan Road, Guangzhou Higher Education Mega Center, 510006, Guangzhou China, Shenzhen Guohua Optoelectronics Tech. Co. Ltd. No. 1301‐1, Tourism Road, Dabu Xiang, Longhua District, 518110, Shenzhen China, Academy of Shenzhen Guohua Optoelectronics No. 1301‐1, Tourism Road, Dabu Xiang, Longhua District, Shenzhen, 518110 China
ABSTRACT Block copolymer (BCP) films with long‐range lateral ordering and orientation are crucial for many applications. Here, we report a simple, versatile strategy based on a solution casting procedure, to produce millimeter thick film of BCPs with highly oriented nanostructures. Transmission electron microscope (TEM), small angle X‐ray scattering (SAXS), and Hansen solubility parameters were used to study the morphology and interactions of the system. A variety of BCP‐solvent pairs were investigated. Factors including set‐up geometry, BCP characteristics, solvent evaporation, surface tension, and interactions, such as solvent‐BCP, solvent‐substrate, and BCP‐substrate were examined. A mechanism is proposed to describe the observed long‐range lateral ordering and orientation in films up to 1 mm in thickness. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018 , 56 , 1369–1375
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- DE‐AC02‐06CH11357
- OSTI ID:
- 1472177
- Journal Information:
- Journal of Polymer Science. Part B, Polymer Physics, Journal Name: Journal of Polymer Science. Part B, Polymer Physics Vol. 56 Journal Issue: 20; ISSN 0887-6266
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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