发明名称 |
FAST RESPONSE NANOFIBER ARTICLES WITH TUNABLE WETTABILITY AND BULK PROPERTIES |
摘要 |
A fibrous properties-switching article comprises a mat consisting of fibers having a fiber diameter of 2 microns or less. The fibers comprise a polymer, copolymer, polymer blend, or polymer network, wherein the fibers have a diameter of 2 gm or less. The surface and/or bulk property of the mat changes over a range of temperatures, wherein the polymer, copolymer, polymer blend, or polymer network undergoes a structural change over the range of temperatures. The fiber mat is formed by electrospinning. In an exemplary embodiment, a blend of polystyrene and poly((N-isopropyl acrylamide) (b1-PS/PNIPA) in dimethylformamide (DMF) is electrospun to form a mat consisting of fibers with a diameter less than 2 μm that shows a transition from a superhydrophilic surface to a nearly superhydrophobic surface over a temperature range from 30° C. to 45° C. A fiber mat formed by electrospinning a DMF solution comprising poly(N-isopropyl acrylamide-co-methacylicacid) (PNIPAMAA), comprises fibers having a diameter less than 2 μm and are cross linked after spinning. The crosslinked PNIPAMAA, (x1-PNIPAMAA) fiber mat displays a transition from a hydrophilic surface to a nearly hydrophobic surface over a temperature range from 30° C. to 45° C. |
申请公布号 |
US2014213136(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201214240963 |
申请日期 |
2012.08.23 |
申请人 |
Sigmund Wolfgang M.;Muthiah Palanikkumaran;Boyle Tim |
发明人 |
Sigmund Wolfgang M.;Muthiah Palanikkumaran;Boyle Tim |
分类号 |
D04H1/728 |
主分类号 |
D04H1/728 |
代理机构 |
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代理人 |
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主权项 |
1. A fibrous properties-switching article, comprising a mat consisting of fibers, wherein the fibers comprise a polymer, copolymer, polymer blend, or polymer network, wherein the fibers have a diameter of 2 μm or less, wherein the polymer, copolymer, polymer blend, or polymer network undergoes a structural change over a range of temperatures, and wherein a surface and/or bulk property of the mat changes over the range of temperatures. |
地址 |
Gainesville FL US |