Continuous concentric lamellar block copolymer nanofibers with long range order
Fibers with long-range ordered internal structures have applications in various areas such as photonic band gap fibers, optical waveguides, wearable power, sensors, and sustained drug release. Up to now, such fibers have been formed by melt extrusion or drawing from a macroscopic preformed rod and w...
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| Format: | Article |
| Language: | en_US |
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American Chemical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/68992 https://orcid.org/0000-0001-5911-6524 https://orcid.org/0000-0001-8137-1732 |
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| author | Ma, Minglin Titievsky, Kirill Thomas, Edwin L. Rutledge, Gregory C |
| author2 | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies |
| author_facet | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Ma, Minglin Titievsky, Kirill Thomas, Edwin L. Rutledge, Gregory C |
| author_sort | Ma, Minglin |
| collection | MIT |
| description | Fibers with long-range ordered internal structures have applications in various areas such as photonic band gap fibers, optical waveguides, wearable power, sensors, and sustained drug release. Up to now, such fibers have been formed by melt extrusion or drawing from a macroscopic preformed rod and were typically limited to diameters >10 μm with internal features >1 μm (Abouraddy, A. F.; et al. Nat. Mater. 2007, 6, 336). We describe a new class of continuous fibers and fibrous membranes with long-range ordered concentric lamellar structure that have fiber diameters and feature sizes 2−3 orders of magnitude smaller than those made by conventional methods. These fibers are created through confined self-assembly of block copolymers within core−shell electrospun filaments. In contrast to the copolymer in bulk or thin films, the domains of the concentric lamellar structure are shown here to vary quantitatively with (radial) position and to exhibit a novel dislocation that accommodates variations in fiber diameter robustly, permitting for the first time the realization of long-range order in technologically meaningful, continuous fibers with approximately 300 nm diameter and 50 nm radial period. |
| first_indexed | 2024-09-23T12:10:54Z |
| format | Article |
| id | mit-1721.1/68992 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:10:54Z |
| publishDate | 2012 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | mit-1721.1/689922022-10-01T08:36:59Z Continuous concentric lamellar block copolymer nanofibers with long range order Ma, Minglin Titievsky, Kirill Thomas, Edwin L. Rutledge, Gregory C Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Materials Science and Engineering Rutledge, Gregory C. Ma, Minglin Titievsky, Kirill Thomas, Edwin L. Rutledge, Gregory C. Fibers with long-range ordered internal structures have applications in various areas such as photonic band gap fibers, optical waveguides, wearable power, sensors, and sustained drug release. Up to now, such fibers have been formed by melt extrusion or drawing from a macroscopic preformed rod and were typically limited to diameters >10 μm with internal features >1 μm (Abouraddy, A. F.; et al. Nat. Mater. 2007, 6, 336). We describe a new class of continuous fibers and fibrous membranes with long-range ordered concentric lamellar structure that have fiber diameters and feature sizes 2−3 orders of magnitude smaller than those made by conventional methods. These fibers are created through confined self-assembly of block copolymers within core−shell electrospun filaments. In contrast to the copolymer in bulk or thin films, the domains of the concentric lamellar structure are shown here to vary quantitatively with (radial) position and to exhibit a novel dislocation that accommodates variations in fiber diameter robustly, permitting for the first time the realization of long-range order in technologically meaningful, continuous fibers with approximately 300 nm diameter and 50 nm radial period. Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract DAAD-19-02-D-0002) United States. Army Research Office 2012-01-30T18:22:39Z 2012-01-30T18:22:39Z 2009-03 2009-03 Article http://purl.org/eprint/type/JournalArticle 1530-6984 1530-6992 http://hdl.handle.net/1721.1/68992 Ma, Minglin et al. “Continuous Concentric Lamellar Block Copolymer Nanofibers with Long Range Order.” Nano Letters 9.4 (2009): 1678-1683. https://orcid.org/0000-0001-5911-6524 https://orcid.org/0000-0001-8137-1732 en_US http://dx.doi.org/10.1021/nl900265y Nano Letters Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf American Chemical Society Prof. Rutledge via Erja Kajosalo |
| spellingShingle | Ma, Minglin Titievsky, Kirill Thomas, Edwin L. Rutledge, Gregory C Continuous concentric lamellar block copolymer nanofibers with long range order |
| title | Continuous concentric lamellar block copolymer nanofibers with long range order |
| title_full | Continuous concentric lamellar block copolymer nanofibers with long range order |
| title_fullStr | Continuous concentric lamellar block copolymer nanofibers with long range order |
| title_full_unstemmed | Continuous concentric lamellar block copolymer nanofibers with long range order |
| title_short | Continuous concentric lamellar block copolymer nanofibers with long range order |
| title_sort | continuous concentric lamellar block copolymer nanofibers with long range order |
| url | http://hdl.handle.net/1721.1/68992 https://orcid.org/0000-0001-5911-6524 https://orcid.org/0000-0001-8137-1732 |
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