Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning
Periodic microstructures in styrene-acrylonitrile (SAN) copolymers are fabricated by two-beam direct laser interference patterning using a nanosecond pulsed laser operating at a wavelength of 266 nm. The SAN copolymers are synthesized using different molar ratios (styrene to acrylonitrile) by a fre...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2015/721035 |
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| author | Martin F. Broglia Diego F. Acevedo Denise Langheinrich Heidi R. Perez-Hernandez Cesar A. Barbero Andrés F. Lasagni |
| author_facet | Martin F. Broglia Diego F. Acevedo Denise Langheinrich Heidi R. Perez-Hernandez Cesar A. Barbero Andrés F. Lasagni |
| author_sort | Martin F. Broglia |
| collection | DOAJ |
| description | Periodic microstructures in styrene-acrylonitrile (SAN) copolymers are fabricated by two-beam direct laser interference patterning using a nanosecond pulsed laser operating at a wavelength of 266 nm. The SAN copolymers are synthesized using different molar ratios (styrene to acrylonitrile) by a free radical polymerization process. The chemical composition of the copolymers and their properties are determined using Fourier transformed infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Depending on the composition of the irradiated copolymer films, with weight ratios ranging from 58 to 96.5% of styrene to acrylonitrile, different ablation behaviors are observed. The laser fluence necessary to locally ablate the copolymer is found to be dependent on the copolymer composition. Unlike other dielectric polymers, the laser irradiation produced both direct ablation of the irradiated material and collapse of the surface. It is shown that, by varying the laser fluence and the copolymer composition, the surface structure can be changed from a periodic pattern with a swelled topography to an ablated-like structure. The number of holes does not depend monotonically on the amount of PS or PAN units but shows a more complex behavior which depends on the copolymer composition and the laser fluence. |
| format | Article |
| id | doaj-art-89433c5c693c4cbb96822c93c5ecfe03 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-89433c5c693c4cbb96822c93c5ecfe032025-08-20T03:38:02ZengWileyInternational Journal of Polymer Science1687-94221687-94302015-01-01201510.1155/2015/721035721035Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference PatterningMartin F. Broglia0Diego F. Acevedo1Denise Langheinrich2Heidi R. Perez-Hernandez3Cesar A. Barbero4Andrés F. Lasagni5Department of Chemistry, National University of Río Cuarto, Route 36, km 601, 5800 Rio Cuarto, ArgentinaDepartment of Chemistry, National University of Río Cuarto, Route 36, km 601, 5800 Rio Cuarto, ArgentinaFraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, GermanyFraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, GermanyDepartment of Chemistry, National University of Río Cuarto, Route 36, km 601, 5800 Rio Cuarto, ArgentinaFraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, GermanyPeriodic microstructures in styrene-acrylonitrile (SAN) copolymers are fabricated by two-beam direct laser interference patterning using a nanosecond pulsed laser operating at a wavelength of 266 nm. The SAN copolymers are synthesized using different molar ratios (styrene to acrylonitrile) by a free radical polymerization process. The chemical composition of the copolymers and their properties are determined using Fourier transformed infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Depending on the composition of the irradiated copolymer films, with weight ratios ranging from 58 to 96.5% of styrene to acrylonitrile, different ablation behaviors are observed. The laser fluence necessary to locally ablate the copolymer is found to be dependent on the copolymer composition. Unlike other dielectric polymers, the laser irradiation produced both direct ablation of the irradiated material and collapse of the surface. It is shown that, by varying the laser fluence and the copolymer composition, the surface structure can be changed from a periodic pattern with a swelled topography to an ablated-like structure. The number of holes does not depend monotonically on the amount of PS or PAN units but shows a more complex behavior which depends on the copolymer composition and the laser fluence.http://dx.doi.org/10.1155/2015/721035 |
| spellingShingle | Martin F. Broglia Diego F. Acevedo Denise Langheinrich Heidi R. Perez-Hernandez Cesar A. Barbero Andrés F. Lasagni Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning International Journal of Polymer Science |
| title | Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning |
| title_full | Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning |
| title_fullStr | Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning |
| title_full_unstemmed | Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning |
| title_short | Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning |
| title_sort | rapid fabrication of periodic patterns on poly styrene co acrylonitrile surfaces using direct laser interference patterning |
| url | http://dx.doi.org/10.1155/2015/721035 |
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