Ferrocene Polymers for Switchable Surface Wettability

Elbert, Johannes; Gallei, Markus; Rüttiger, Christian; Brunsen, Annette; Didzoleit, Haiko; Stühn, Bernd; Rehahn, Matthias

doi:10.1021/om400468p

Cited by 111 publications

(109 citation statements)

References 48 publications

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“…This is consistent with prior results obtained on planar surfaces. [ 50 ] An overview about the change in roughness on the scale of around 50%. [ 24 ] Measurements were carried out at humidity values below 40% and thus the error within the absolute values should allow a comparison of different functionalization states.…”

Section: Mesoporous Silica and Polymer Modifi Cationmentioning

confidence: 99%

“…[ 40,[43][44][45][46] The ferrocene oxidation/reduction cycles could be utilized for controlled release of organics from gels, [ 47 ] for applications as composite colloidal crystal fi lms, [ 46 ] for responsive release of a dye from patchy nanocapsules, [ 48 ] for catalysis modulation, [ 49 ] or for switching surface wettability. [ 50 ] Here, we report the functionalization of an ordered mesoporous silica thin fi lm with redox-responsive poly(2-(methacryloyloxy)ethyl ferrocenecarboxylate) (PFcMA) and end functionalized polyvinylferrocene (PVFc). Therefore, PFcMA is immobilized by using a surface-initiated ATRP protocol, while end functionalized PVFc obtainable via living anionic polymerization is grafted to the surface of mesoporous silica.…”

Section: Introductionmentioning

confidence: 99%

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Polymer‐Modified Mesoporous Silica Thin Films for Redox‐Mediated Selective Membrane Gating

Elbert

Krohm

Rüttiger

et al. 2013

Adv Funct Materials

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Controlling structure and function to switch ionic transport through synthetic membranes is a major challenge in the fabrication of functional nanodevices. Here we describe the combination of mesoporous silica thin fi lms as structural unit, functionalized with two different redox-responsive ferrocene-containing polymers, polyvinylferrocene (PVFc) and poly(2-(methacryloyloxy)ethyl ferrocenecarboxylate) (PFcMA), by using either a grafting to, or a grafting from approach. Both mesoporous fi lm functionalization strategies are investigated in terms of polymer effect on ionic permselectivity. A signifi cantly different ionic permselective behavior can be observed. This is attributed to different polymer location within the mesoporous fi lm, depending on the functionalization strategies used. Additionally, the infl uence of chemical oxidation on the ionic permselective behavior is studied by cyclic voltammetry showing a redox-controlled membrane gating as function of polymer location and the pH value. This study is a fi rst step of combining redox-responsive ferrocene-containing polymers and mesoporous membranes, and thus towards redox-controlled ionic transport through nanopores.

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Section: Mesoporous Silica and Polymer Modifi Cationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polymer‐Modified Mesoporous Silica Thin Films for Redox‐Mediated Selective Membrane Gating

Elbert

Krohm

Rüttiger

et al. 2013

Adv Funct Materials

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“…The intensity of the inelastic excitation originating from scattering of neutrons on magnetic moments is described by the magnetic scattering cross section in Eq. (6) and the thermal population factor in Eq. (5).…”

Section: Zeeman Splitting Of Electronic Ground Statementioning

confidence: 99%

“…Redox-responsive polymers can be attained, e.g., by incorporating the redoxactive metal-organic ferrocene sandwich complex into a polymer structure [4]. These polymers have been used, amongst other examples, in self-healing materials [5], for switching surface wettability [6], or ion-selective membrane gating [7].…”

Section: Introductionmentioning

confidence: 99%

Direct observation of electronic and nuclear ground state splitting in external magnetic field by inelastic neutron scattering on oxidized ferrocene and ferrocene containing polymers

Appel

Frick

Elbert

et al. 2015

EPJ Web of Conferences

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Abstract. The quantum mechanical splitting of states by interaction of a magnetic moment with an external magnetic field is well known, e.g., as Zeeman effect in optical transitions, and is also often seen in magnetic neutron scattering. We report excitations observed in inelastic neutron spectroscopy on the redox-responsive polymer poly(vinylferrocene). They are interpreted as splitting of the electronic ground state in the organometallic ferrocene units attached to the polymer chain where a magnetic moment is created by oxidation. In a second experiment using high resolution neutron backscattering spectroscopy we observe the hyperfine splitting, i.e., interaction of nuclear magnetic moments with external magnetic fields leading to sub-µeV excitations observable in incoherent neutron spin-flip scattering on hydrogen and vanadium nuclei.

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“…Tekstil yüzeylerinde kalıcı hidrofillik veya hidrofobluk elde edebilmenin yanı sıra değişen hidrofilliğe sahip fonksiyonel akıllı tekstil yüzeyleri de elde edilebilmektedir [27]. Uyarı-cevap esaslı bu akıllı tekstillerin özellikle biyolojik ve endüstriyel uygulama potansiyelleri son zamanlarda oldukça yaygın olarak araştırılmaktadır [16,28] …”

Section: Teksti̇l Yüzeyleri̇nde Deği̇şti̇ri̇lebi̇len Islanabi̇li̇rli̇kunclassified

Switchable Wettability on Textile Surfaces Using Nanotechnology Applications

Ersoy

2015

KSU J. Eng. Sci.

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ÖZET: Bir tekstil yüzeyinin ıslanabilirliği esas olarak yüzeyin kimyasal yapısı ve yüzey pürüzlülüğüne bağlı olarak değişmektedir. Bilim dünyası doğada kendini temizleyebilme özelliğine sahip nilüfer yaprağı gibi nanopürüzlü yüzeylerin biyobenzetim tekniği ile benzerini üretmeyi esas alan yöntemler ve malzemeler geliştirmektedir. Bu çalışmada, tekstil yüzeylerinin ıslanabilirliği, ıslanma teorisi ve ortam şartlarına bağlı olarak ıslanabilirliği değişen yüzeyler ele alınmıştır. Bu yüzeylerin; sıcaklık, pH, ışık veya elektrik alan etkisi altında yüzey kimyası ve konformasyonunun değişimi incelenmiştir. Anahtar Kelimeler: Temas açısı, süper hidrofobluk, biyobenzetim, uyarı-cevap esaslı ıslanabilirlik Switchable Wettability On Textile Surfaces Using Nanotechnology ApplicationsABSTRACT: Wettability of a textile surface basically depends on chemical structure and roughness of surface. Science world has developed new methods and materials using biomimetics to obtain nanorough surfaces like lotus leafs which have self-cleaning feature. In this study, wettability of textile surfaces, theory of wettability and production of nano surfaces having stimuli-responsive wettability were discussed. Alteration of surface chemistry and conformation under the effects of temperature, pH, light or electrical field were examined.

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Ferrocene Polymers for Switchable Surface Wettability

Cited by 111 publications

References 48 publications

Polymer‐Modified Mesoporous Silica Thin Films for Redox‐Mediated Selective Membrane Gating

Polymer‐Modified Mesoporous Silica Thin Films for Redox‐Mediated Selective Membrane Gating

Direct observation of electronic and nuclear ground state splitting in external magnetic field by inelastic neutron scattering on oxidized ferrocene and ferrocene containing polymers

Switchable Wettability on Textile Surfaces Using Nanotechnology Applications

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