Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT
A dual-switchable surface between hydrophobic and superhydrophobic has been fabricated successfully by combining reversible addition-fragmentation chain transfer polymerization (RAFT) polymeric technology and thiol-NCO click chemistry. Well-defined block copolymer, poly(7-(6-(acryloyloxy) hexyloxy)...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2014-07-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0005127&mi=cd |
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| author | M. S. Han X. Y. Zhang L. Li C. Peng L. Bao E. C. Ou Y. Q. Xiong W. J. Xu |
| author_facet | M. S. Han X. Y. Zhang L. Li C. Peng L. Bao E. C. Ou Y. Q. Xiong W. J. Xu |
| author_sort | M. S. Han |
| collection | DOAJ |
| description | A dual-switchable surface between hydrophobic and superhydrophobic has been fabricated successfully by combining reversible addition-fragmentation chain transfer polymerization (RAFT) polymeric technology and thiol-NCO click chemistry. Well-defined block copolymer, poly(7-(6-(acryloyloxy) hexyloxy) coumarin)-b-poly(N-Isopropylacryl amide), was synthesized by RAFT, and then the block copolymer was grafted onto the surface of SiO2 modified by toluene disocynate (TDI) via thiol-NCO click chemistry. The results of nuclear magnetic resonance (NMR) and Fourier Transform Infrared (FTIR) spectroscopies confirmed that the block copolymer (Number average molecular weight (Mn) = 9400, polydispersity index (PDI) = 1.22) has been synthesized successfully. The static contact angle (CA) of the surface prepared by SiO2/P (7-6-AC)-b-PNIPAAm switches from 98±2 to 137±2° by adjusting the temperature. Furthermore, the contact angle can also oscillate between 137±2 and 157±2° on the irradiation of UV light at 365 and 254 nm, respectively. The dual-switchable surfaces exhibit high stability between hydrophilicity and superhydrophobicity. Therefore, the method provides a new method to fabricate the dual-stimuli-responsive surface with tunable wettability, reversible switching, and also be easily extended to other dual-responsive surfaces. This ability to control the wettability by the adjustment of the temperature and UV light has applications in a broad range of fields. |
| format | Article |
| id | doaj-art-cfa30ecab9694477a67cd1ba374bf81a |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2014-07-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-cfa30ecab9694477a67cd1ba374bf81a2025-08-20T03:57:44ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2014-07-018752854210.3144/expresspolymlett.2014.56Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFTM. S. HanX. Y. ZhangL. LiC. PengL. BaoE. C. OuY. Q. XiongW. J. XuA dual-switchable surface between hydrophobic and superhydrophobic has been fabricated successfully by combining reversible addition-fragmentation chain transfer polymerization (RAFT) polymeric technology and thiol-NCO click chemistry. Well-defined block copolymer, poly(7-(6-(acryloyloxy) hexyloxy) coumarin)-b-poly(N-Isopropylacryl amide), was synthesized by RAFT, and then the block copolymer was grafted onto the surface of SiO2 modified by toluene disocynate (TDI) via thiol-NCO click chemistry. The results of nuclear magnetic resonance (NMR) and Fourier Transform Infrared (FTIR) spectroscopies confirmed that the block copolymer (Number average molecular weight (Mn) = 9400, polydispersity index (PDI) = 1.22) has been synthesized successfully. The static contact angle (CA) of the surface prepared by SiO2/P (7-6-AC)-b-PNIPAAm switches from 98±2 to 137±2° by adjusting the temperature. Furthermore, the contact angle can also oscillate between 137±2 and 157±2° on the irradiation of UV light at 365 and 254 nm, respectively. The dual-switchable surfaces exhibit high stability between hydrophilicity and superhydrophobicity. Therefore, the method provides a new method to fabricate the dual-stimuli-responsive surface with tunable wettability, reversible switching, and also be easily extended to other dual-responsive surfaces. This ability to control the wettability by the adjustment of the temperature and UV light has applications in a broad range of fields.http://www.expresspolymlett.com/letolt.php?file=EPL-0005127&mi=cdPolymer compositesSuperhydrophobic surfacePhoto-sensitiveThermal-sensitiveClick chemistry |
| spellingShingle | M. S. Han X. Y. Zhang L. Li C. Peng L. Bao E. C. Ou Y. Q. Xiong W. J. Xu Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT eXPRESS Polymer Letters Polymer composites Superhydrophobic surface Photo-sensitive Thermal-sensitive Click chemistry |
| title | Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT |
| title_full | Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT |
| title_fullStr | Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT |
| title_full_unstemmed | Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT |
| title_short | Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT |
| title_sort | dual switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and raft |
| topic | Polymer composites Superhydrophobic surface Photo-sensitive Thermal-sensitive Click chemistry |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0005127&mi=cd |
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