Sol–gel hybrid films based on organosilanes with long alkyl chains
In this paper, we report the synthesis of different silica materials via the acid-catalyzed sol–gel process at room temperature (25°C), using silane precursors with various alkyl chains (dimethyl, octyl and/or hexadecyl), in order to obtain thin films with anti-reflective and hydrophobic properties....
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| Veröffentlicht in: | JCT research 2020-09, Vol.17 (5), p.1389-1399 |
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| creator | Rădiţoiu, Valentin Purcar, Violeta Rădiţoiu, Alina Raduly, Monica Florentina Frone, Adriana Nicoleta Anastasescu, Mihai Stoica, Mihai Alexandrescu, Elvira Şomoghi, Raluca Manea, Raluca Ispas, Georgiana Cornelia Wagner, Luminiţa Eugenia Căprărescu, Simona |
| description | In this paper, we report the synthesis of different silica materials via the acid-catalyzed sol–gel process at room temperature (25°C), using silane precursors with various alkyl chains (dimethyl, octyl and/or hexadecyl), in order to obtain thin films with anti-reflective and hydrophobic properties. Chemical, optical and structural properties of obtained silica materials were thoroughly characterized with various techniques such as FTIR and UV–Vis spectroscopy, AFM analysis, ellipsometric measurements, ESEM and TEM microscopy. Wettability of thin films was evaluated by water contact angle measurements. FTIR spectra of silica materials revealed that the intensity of the Si–O–Si characteristic bands varies depending on the precursor type. From AFM results, we found that the obtained films present a different microstructure as a function of the silica sol formulations. The hydrophobic character of the thin films increases with increasing the length of the hydrophobic chains following the order: dimethyl |
| doi_str_mv | 10.1007/s11998-020-00359-8 |
| format | Article |
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Chemical, optical and structural properties of obtained silica materials were thoroughly characterized with various techniques such as FTIR and UV–Vis spectroscopy, AFM analysis, ellipsometric measurements, ESEM and TEM microscopy. Wettability of thin films was evaluated by water contact angle measurements. FTIR spectra of silica materials revealed that the intensity of the Si–O–Si characteristic bands varies depending on the precursor type. From AFM results, we found that the obtained films present a different microstructure as a function of the silica sol formulations. The hydrophobic character of the thin films increases with increasing the length of the hydrophobic chains following the order: dimethyl < octyl < hexadecyl. UV–Vis analysis of the coatings covered with silica materials presents a low reflectance (15.5%). The proposed method in this work has the potential to be a low-cost processing path of nanostructured anti-reflection transparent substrates.</description><identifier>ISSN: 1547-0091</identifier><identifier>EISSN: 1935-3804</identifier><identifier>EISSN: 2168-8028</identifier><identifier>DOI: 10.1007/s11998-020-00359-8</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Atomic force microscopy ; Chains ; Chemistry and Materials Science ; Contact angle ; Corrosion and Coatings ; Ellipsometry ; Fourier transforms ; Hydrophobicity ; Industrial Chemistry/Chemical Engineering ; Infrared spectroscopy ; Materials Science ; Optical properties ; Polymer Sciences ; Precursors ; Room temperature ; Silicon dioxide ; Sol-gel processes ; Spectrum analysis ; Substrates ; Surfaces and Interfaces ; Thin Films ; Tribology ; Wettability</subject><ispartof>JCT research, 2020-09, Vol.17 (5), p.1389-1399</ispartof><rights>American Coatings Association 2020</rights><rights>American Coatings Association 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-993695324c02a2fdca1de617ac6bb30b14f77fbc4a05aaaec18f80526e2a9f6a3</citedby><cites>FETCH-LOGICAL-c356t-993695324c02a2fdca1de617ac6bb30b14f77fbc4a05aaaec18f80526e2a9f6a3</cites><orcidid>0000-0001-9301-3895</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11998-020-00359-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11998-020-00359-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Rădiţoiu, Valentin</creatorcontrib><creatorcontrib>Purcar, Violeta</creatorcontrib><creatorcontrib>Rădiţoiu, Alina</creatorcontrib><creatorcontrib>Raduly, Monica Florentina</creatorcontrib><creatorcontrib>Frone, Adriana Nicoleta</creatorcontrib><creatorcontrib>Anastasescu, Mihai</creatorcontrib><creatorcontrib>Stoica, Mihai</creatorcontrib><creatorcontrib>Alexandrescu, Elvira</creatorcontrib><creatorcontrib>Şomoghi, Raluca</creatorcontrib><creatorcontrib>Manea, Raluca</creatorcontrib><creatorcontrib>Ispas, Georgiana Cornelia</creatorcontrib><creatorcontrib>Wagner, Luminiţa Eugenia</creatorcontrib><creatorcontrib>Căprărescu, Simona</creatorcontrib><title>Sol–gel hybrid films based on organosilanes with long alkyl chains</title><title>JCT research</title><addtitle>J Coat Technol Res</addtitle><description>In this paper, we report the synthesis of different silica materials via the acid-catalyzed sol–gel process at room temperature (25°C), using silane precursors with various alkyl chains (dimethyl, octyl and/or hexadecyl), in order to obtain thin films with anti-reflective and hydrophobic properties. Chemical, optical and structural properties of obtained silica materials were thoroughly characterized with various techniques such as FTIR and UV–Vis spectroscopy, AFM analysis, ellipsometric measurements, ESEM and TEM microscopy. Wettability of thin films was evaluated by water contact angle measurements. FTIR spectra of silica materials revealed that the intensity of the Si–O–Si characteristic bands varies depending on the precursor type. From AFM results, we found that the obtained films present a different microstructure as a function of the silica sol formulations. The hydrophobic character of the thin films increases with increasing the length of the hydrophobic chains following the order: dimethyl < octyl < hexadecyl. UV–Vis analysis of the coatings covered with silica materials presents a low reflectance (15.5%). The proposed method in this work has the potential to be a low-cost processing path of nanostructured anti-reflection transparent substrates.</description><subject>Atomic force microscopy</subject><subject>Chains</subject><subject>Chemistry and Materials Science</subject><subject>Contact angle</subject><subject>Corrosion and Coatings</subject><subject>Ellipsometry</subject><subject>Fourier transforms</subject><subject>Hydrophobicity</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Infrared spectroscopy</subject><subject>Materials Science</subject><subject>Optical properties</subject><subject>Polymer Sciences</subject><subject>Precursors</subject><subject>Room temperature</subject><subject>Silicon dioxide</subject><subject>Sol-gel processes</subject><subject>Spectrum analysis</subject><subject>Substrates</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Tribology</subject><subject>Wettability</subject><issn>1547-0091</issn><issn>1935-3804</issn><issn>2168-8028</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQRi0EEqVwAVaWWAfGdpzYS1R-pUosgLU1cew0JY2L3Qp1xx24ISchECR2rGaked830iPklME5AygvEmNaqww4ZABC6kztkQnTQmZCQb4_7DIvh5Nmh-QopSUAL5USE3L1GLrP94_GdXSxq2JbU992q0QrTK6moachNtiH1HbYu0Tf2s2CdqFvKHYvu47aBbZ9OiYHHrvkTn7nlDzfXD_N7rL5w-397HKeWSGLTaa1KLQUPLfAkfvaIqtdwUq0RVUJqFjuy9JXNkeQiOgsU16B5IXjqH2BYkrOxt51DK9blzZmGbaxH14anksQqoQiHyg-UjaGlKLzZh3bFcadYWC-bZnRlhlsmR9bRg0hMYbSAPeNi3_V_6S-AFifbhY</recordid><startdate>20200901</startdate><enddate>20200901</enddate><creator>Rădiţoiu, Valentin</creator><creator>Purcar, Violeta</creator><creator>Rădiţoiu, Alina</creator><creator>Raduly, Monica Florentina</creator><creator>Frone, Adriana Nicoleta</creator><creator>Anastasescu, Mihai</creator><creator>Stoica, Mihai</creator><creator>Alexandrescu, Elvira</creator><creator>Şomoghi, Raluca</creator><creator>Manea, Raluca</creator><creator>Ispas, Georgiana Cornelia</creator><creator>Wagner, Luminiţa Eugenia</creator><creator>Căprărescu, Simona</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-9301-3895</orcidid></search><sort><creationdate>20200901</creationdate><title>Sol–gel hybrid films based on organosilanes with long alkyl chains</title><author>Rădiţoiu, Valentin ; 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Chemical, optical and structural properties of obtained silica materials were thoroughly characterized with various techniques such as FTIR and UV–Vis spectroscopy, AFM analysis, ellipsometric measurements, ESEM and TEM microscopy. Wettability of thin films was evaluated by water contact angle measurements. FTIR spectra of silica materials revealed that the intensity of the Si–O–Si characteristic bands varies depending on the precursor type. From AFM results, we found that the obtained films present a different microstructure as a function of the silica sol formulations. The hydrophobic character of the thin films increases with increasing the length of the hydrophobic chains following the order: dimethyl < octyl < hexadecyl. UV–Vis analysis of the coatings covered with silica materials presents a low reflectance (15.5%). 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| subjects | Atomic force microscopy Chains Chemistry and Materials Science Contact angle Corrosion and Coatings Ellipsometry Fourier transforms Hydrophobicity Industrial Chemistry/Chemical Engineering Infrared spectroscopy Materials Science Optical properties Polymer Sciences Precursors Room temperature Silicon dioxide Sol-gel processes Spectrum analysis Substrates Surfaces and Interfaces Thin Films Tribology Wettability |
| title | Sol–gel hybrid films based on organosilanes with long alkyl chains |
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