Tuning response amplitude in nanoimprinted thermoresponsive polymer blend
We demonstrate the potential of thermoresponsive poly N‐(isopropylacrylamide) (PNIPAM) based surfaces in achieving a low‐energy approach to modulate surface wetting for applications such as fog harvesting and anti‐fogging. Alternative to grafting methods, we use a two‐step approach for tuning the re...
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| Veröffentlicht in: | Journal of applied polymer science 2022-04, Vol.139 (15), p.n/a |
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| container_title | Journal of applied polymer science |
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| creator | Sargur Ranganath, Anupama Vellingiri, Suganya Low, Hong Yee |
| description | We demonstrate the potential of thermoresponsive poly N‐(isopropylacrylamide) (PNIPAM) based surfaces in achieving a low‐energy approach to modulate surface wetting for applications such as fog harvesting and anti‐fogging. Alternative to grafting methods, we use a two‐step approach for tuning the response amplitude. First, we blend PNIPAM with a chemically non‐reactive poly (vinylidene fluoride), PVDF (1/3, 1/1, 3/1 by weight). Second, thermal nanoimprint lithography is used to create micro (3, 5, 10, and 20 μm) and nano‐scale (100 and 200 nm) pillars. Nano‐patterned surfaces show a response amplitude of ~30°–50° compared to ~15°–30°, observed for the micro‐patterned surface. X‐ray photo‐electron spectroscopy and energy dispersive X‐ray analysis confirms the reduction of polyvinylidene fluoride phase domains and enrichment of PNIPAM on the nano‐patterned surface. A real‐time dynamic mist condensation study showed that the nano‐patterned blend exhibited a lower temperature range (34/41°C) for on/off (wetting/drying) state compared to an unpatterned blend (37/50°C). |
| doi_str_mv | 10.1002/app.51936 |
| format | Article |
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Alternative to grafting methods, we use a two‐step approach for tuning the response amplitude. First, we blend PNIPAM with a chemically non‐reactive poly (vinylidene fluoride), PVDF (1/3, 1/1, 3/1 by weight). Second, thermal nanoimprint lithography is used to create micro (3, 5, 10, and 20 μm) and nano‐scale (100 and 200 nm) pillars. Nano‐patterned surfaces show a response amplitude of ~30°–50° compared to ~15°–30°, observed for the micro‐patterned surface. X‐ray photo‐electron spectroscopy and energy dispersive X‐ray analysis confirms the reduction of polyvinylidene fluoride phase domains and enrichment of PNIPAM on the nano‐patterned surface. 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A real‐time dynamic mist condensation study showed that the nano‐patterned blend exhibited a lower temperature range (34/41°C) for on/off (wetting/drying) state compared to an unpatterned blend (37/50°C).</description><subject>Amplitudes</subject><subject>Fluorides</subject><subject>Fogging</subject><subject>Isopropylacrylamide</subject><subject>Materials science</subject><subject>nanoimprinting</subject><subject>Nanolithography</subject><subject>nanosurfaces</subject><subject>polymer blend</subject><subject>Polymer blends</subject><subject>Polymers</subject><subject>Polyvinylidene fluorides</subject><subject>responsive surfaces</subject><subject>Tuning</subject><subject>Vinylidene fluoride</subject><subject>Wetting</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp1kD1PwzAQhi0EEqUw8A8sMTGk9XftsaqgVKpEhzJbJr5AqsQJdgLqvyclXZluuOd9T_cgdE_JjBLC5q5tZ5Iari7QhBKzyIRi-hJNhh3NtDHyGt2kdCCEUknUBG32fSjDB46Q2iYkwK5uq7LrPeAy4OBCU9ZtLEMHHnefEOvmTJbfgNumOtYQ8XsFwd-iq8JVCe7Oc4renp_2q5ds-7rerJbbLGdyoTInGFPec62dV7TgAAXzuQCjDRWOKUZyKQAIK7Ty0rFCSE6NEUYazogmfIoext42Nl89pM4emj6G4aQd0oJKrhcn6nGk8tikFKGwwxe1i0dLiT2ZsoMp-2dqYOcj-1NWcPwftMvdbkz8AubXanU</recordid><startdate>20220415</startdate><enddate>20220415</enddate><creator>Sargur Ranganath, Anupama</creator><creator>Vellingiri, Suganya</creator><creator>Low, Hong Yee</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-3695-5138</orcidid><orcidid>https://orcid.org/0000-0003-2949-0763</orcidid></search><sort><creationdate>20220415</creationdate><title>Tuning response amplitude in nanoimprinted thermoresponsive polymer blend</title><author>Sargur Ranganath, Anupama ; Vellingiri, Suganya ; Low, Hong Yee</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2576-a4226dd388ad61f3eef2dc4e98914a2620c54ee02f86d5a2f4531994959320803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Amplitudes</topic><topic>Fluorides</topic><topic>Fogging</topic><topic>Isopropylacrylamide</topic><topic>Materials science</topic><topic>nanoimprinting</topic><topic>Nanolithography</topic><topic>nanosurfaces</topic><topic>polymer blend</topic><topic>Polymer blends</topic><topic>Polymers</topic><topic>Polyvinylidene fluorides</topic><topic>responsive surfaces</topic><topic>Tuning</topic><topic>Vinylidene fluoride</topic><topic>Wetting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sargur Ranganath, Anupama</creatorcontrib><creatorcontrib>Vellingiri, Suganya</creatorcontrib><creatorcontrib>Low, Hong Yee</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sargur Ranganath, Anupama</au><au>Vellingiri, Suganya</au><au>Low, Hong Yee</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tuning response amplitude in nanoimprinted thermoresponsive polymer blend</atitle><jtitle>Journal of applied polymer science</jtitle><date>2022-04-15</date><risdate>2022</risdate><volume>139</volume><issue>15</issue><epage>n/a</epage><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>We demonstrate the potential of thermoresponsive poly N‐(isopropylacrylamide) (PNIPAM) based surfaces in achieving a low‐energy approach to modulate surface wetting for applications such as fog harvesting and anti‐fogging. 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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Amplitudes Fluorides Fogging Isopropylacrylamide Materials science nanoimprinting Nanolithography nanosurfaces polymer blend Polymer blends Polymers Polyvinylidene fluorides responsive surfaces Tuning Vinylidene fluoride Wetting |
| title | Tuning response amplitude in nanoimprinted thermoresponsive polymer blend |
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