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Harito C, Lledo RC, Bavykin DV, Moshrefi‐Torbati M, Islam A, Yuliarto B, Walsh FC. Patterning of worm‐like soft polydimethylsiloxane structures using a
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nanotubular array. J Appl Polym Sci 2020. [DOI: 10.1002/app.49795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Christian Harito
- Department for Management of Science and Technology DevelopmentTon Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Applied SciencesTon Duc Thang University Ho Chi Minh City Vietnam
| | - Rosa C. Lledo
- Mechatronics Research GroupUniversity of Southampton Southampton UK
- Department for Mechanical EngineeringTechnical University of Denmark Kongens Lyngby Denmark
| | | | | | - Aminul Islam
- Department for Mechanical EngineeringTechnical University of Denmark Kongens Lyngby Denmark
| | - Brian Yuliarto
- Advanced Functional Materials Laboratory, Engineering PhysicsInstitut Teknologi Bandung Bandung Indonesia
- Research Center for Nanosciences and NanotechnologyInstitut Teknologi Bandung Bandung Indonesia
| | - Frank C. Walsh
- Energy Technology GroupUniversity of Southampton Southampton UK
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Rose MA, Bowen JJ, Morin SA. Emergent Soft Lithographic Tools for the Fabrication of Functional Polymeric Microstructures. Chemphyschem 2019; 20:909-925. [DOI: 10.1002/cphc.201801140] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/15/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Mark A. Rose
- Department of Chemistry University of Nebraska-Lincoln Lincoln, NE 68588 USA
| | - John J. Bowen
- Department of Chemistry University of Nebraska-Lincoln Lincoln, NE 68588 USA
| | - Stephen A. Morin
- Department of Chemistry University of Nebraska-Lincoln Lincoln, NE 68588 USA
- Nebraska Center for Materials and Nanoscience University of Nebraska-Lincoln Lincoln, NE 68588 USA
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Park JS, Lee B, Park JH, Choi YJ, Song JE, Kim MG, La JA, Pyun SB, Cho EC. Flow Behaviors of Polymer Colloids and Curing Resins Affect Pore Diameters and Heights of Periodic Porous Polymer Films to Direct Their Surface and Optical Characteristics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2719-2727. [PMID: 30667231 DOI: 10.1021/acs.langmuir.8b03906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Manipulation of both pore diameters and heights of two-dimensional periodic porous polymer films is important to extensively control their characteristics. However, except for using different sized colloid templates in replication methods, an effective method that tunes these factors has rarely been reported. We found that both parameters are controllable by adjusting the flow behaviors of polystyrene colloids and curing resin precursors during the preparation of phenolic resin and poly(dimethylsiloxane) periodic porous films by embedding their precursors into colloidal crystal monolayers. We adjust the flow behaviors by either varying film preparation temperatures (≥glass transition temperature of polystyrene) or using the precursors mixed with different amounts of solvents that renders the colloids viscous. Consequently, the pore diameters and film heights change by 36-56 and 56-84%, respectively. Such modulation results in the change in height to diameter ratios and the areal fractions of resins at air-film interfaces, thereby significantly changing the water contact angles on these surfaces and their photonic characteristics. This straightforward method does not require additional steps, differently sized colloids, or different amounts of precursors for these parameter controls.
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Affiliation(s)
- Jong Seong Park
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Beu Lee
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Ji Hoon Park
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Yeon Jae Choi
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Ji Eun Song
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Min Gyu Kim
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Ju A La
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Seung Beom Pyun
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
| | - Eun Chul Cho
- Department of Chemical Engineering , Hanyang University , Seoul 04763 , South Korea
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Wang J, Zhang S, Shi Z, Jiu J, Wu C, Sugahara T, Nagao S, Suganuma K, He P. Nanoridge patterns on polymeric film by a photodegradation copying method for metallic nanowire networks. RSC Adv 2018; 8:40740-40747. [PMID: 35557918 PMCID: PMC9091417 DOI: 10.1039/c8ra02249f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 10/24/2018] [Indexed: 12/25/2022] Open
Abstract
A simple photocopying method based on selective polymer photodegradation is proposed for fabricating topographical nanopatterns. Nanoridges are structured on a polyethylene terephthalate film due to ultraviolet shielding of silver nanowire networks.
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Affiliation(s)
- Jun Wang
- State Key Laboratory of Advanced Welding and Joining
- Harbin Institute of Technology
- Harbin 150001
- China
- The Institute of Scientific and Industrial Research
| | - Shuye Zhang
- State Key Laboratory of Advanced Welding and Joining
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Zhiyuan Shi
- State Key Laboratory of Advanced Welding and Joining
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Jinting Jiu
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - Chunhui Wu
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - Tohru Sugahara
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - Shijo Nagao
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - Katsuaki Suganuma
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - Peng He
- State Key Laboratory of Advanced Welding and Joining
- Harbin Institute of Technology
- Harbin 150001
- China
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Yao L, Oquendo LE, Schulze MW, Lewis RM, Gladfelter WL, Hillmyer MA. Poly(cyclohexylethylene)-block-Poly(lactide) Oligomers for Ultrasmall Nanopatterning Using Atomic Layer Deposition. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7431-7439. [PMID: 26954771 DOI: 10.1021/acsami.5b12785] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Poly(cyclohexylethylene)-block-poly(lactide) (PCHE-PLA) block polymers were synthesized through a combination of anionic polymerization, heterogeneous catalytic hydrogenation and controlled ring-opening polymerization. Ordered thin films of PCHE-PLA with ultrasmall hexagonally packed cylinders oriented perpendicularly to the substrate surface were prepared by spin-coating and subsequent solvent vapor annealing for use in two distinct templating strategies. In one approach, selective hydrolytic degradation of the PLA domains generated nanoporous PCHE templates with an average pore diameter of 5 ± 1 nm corroborated by atomic force microscopy and grazing incidence small-angle X-ray scattering. Alternatively, sequential infiltration synthesis (SIS) was employed to deposit Al2O3 selectively into the PLA domains of PCHE-PLA thin films. A combination of argon ion milling and O2 reactive ion etching (RIE) enabled the replication of the Al2O3 nanoarray from the PCHE-PLA template on diverse substrates including silicon and gold with feature diameters less than 10 nm.
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Affiliation(s)
- Li Yao
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
| | - Luis E Oquendo
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
| | - Morgan W Schulze
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
| | - Ronald M Lewis
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
| | - Wayne L Gladfelter
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
| | - Marc A Hillmyer
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States
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Han X, Zhao Y, Cao Y, Lu C. Controlling and prevention of surface wrinkling via size-dependent critical wrinkling strain. SOFT MATTER 2015; 11:4444-4452. [PMID: 25939362 DOI: 10.1039/c5sm00761e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Surface wrinkling may occur in a film-substrate system when the applied strain exceeds the critical value. However, the practically required strain for the onset of surface wrinkling can be different from the theoretically predicted value. Here we investigate the film size effect-dependent critical strain for the mechanical strain-induced surface wrinkling via a combination of experiments and theoretical analysis. In the poly(dimethylsiloxane)-based system fabricated by the smart combination of mechanical straining and selective O2 plasma (OP) exposure through Cu grids, the film size effect on the critical wrinkling strain is systematically studied by considering OP exposure duration, the mesh number and geometry of Cu grids. Meanwhile, a simple analytical solution revealing the film size effect is well established, which shows good consistency with the experimental results. This study provides an experimental and theoretical basis for finely tuning the critical wrinkling strain in a simple and quantitative manner, which can find a wide range of applications in such fields as microelectronic circuits and optical devices, where controlling and/or prevention of surface wrinkling are of great importance.
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Affiliation(s)
- Xue Han
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China.
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Bao C, Xu KQ, Tang CY, Lau WM, Yin CB, Zhu Y, Mei J, Lee J, Hui D, Nie HY, Liu Y. Cross-Linking the Surface of Cured Polydimethylsiloxane via Hyperthemal Hydrogen Projectile Bombardment. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8515-8524. [PMID: 25849306 DOI: 10.1021/acsami.5b00190] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cross-linking of polydimethylsiloxane (PDMS) is increasingly important with recent focus on its top surface stiffness. In this paper, we demonstrate that hyperthermal hydrogen projectile bombardment, a surface sensitive cross-linking technology, is superior in enhancing the mechanical properties of a cured PDMS surface without significantly degrading its hydrophobicity. Both water contact angle measurements and time-of-flight secondary ion mass spectrometry are used to investigate the variations in surface chemistry and structure upon cross-linking. Using nanoindentation and atomic force microscopy, we confirm that the thickness of the cross-linked PDMS is controllable by the bombardment time, which opens opportunities for tuning cross-linking degree in compliance with arising requirements from the practice.
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Affiliation(s)
| | | | | | | | - Cong-Bin Yin
- ‡CCDC Downhole Service Company, CNPC, Chengdu, Sichuan 610051, China
| | - Yan Zhu
- §Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | | | | | - David Hui
- ∥Department of Mechanical Engineering, University of New Orleans, New Orleans, Louisiana 70148, United States
| | - Heng-Yong Nie
- ⊥Surface Science Western, The University of Western Ontario, 999 Collip Circle, London, Ontario N6G 0J3, Canada
- #Department of Physics and Astronomy, The University of Western Ontario, London, Ontario N6A 3K7, Canada
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Nakajima K, Ito M, Wang D, Liu H, Nguyen HK, Liang X, Kumagai A, Fujinami S. Nano-palpation AFM and its quantitative mechanical property mapping. Microscopy (Oxf) 2014; 63:193-208. [DOI: 10.1093/jmicro/dfu009] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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