Nanoporous Membranes of Hydrogen‐bridged Smectic Networks with Nanometer Transverse Pore Dimensions

Gonzalez, Carmen Luengo; Bastiaansen, Cees W. M.; Lub, Johan; Loos, Joachim; Lu, Kanbo; Wondergem, Harry J.; Broer, Dirk J.

doi:10.1002/adma.200702002

Cited by 67 publications

(96 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Unsere Arbeitsgruppe stellte nanoporçse Membranen basierend auf einem smektischen flüssigkristallinen Netzwerk aus der photopolymerisierbaren Benzoesäure 6 und dem Netzbildner 19 her (Abbildung 8 a). [37] . dung 8 b).…”

Section: Methodsunclassified

Funktionelle organische Materialien auf der Basis polymerisierter flüssigkristalliner Monomere: supramolekulare wasserstoffverbrückte Systeme

et al. 2012

Self Cite

View full text Add to dashboard Cite

Funktionelle organische Materialien sind von großem Interesse für eine Vielzahl von Anwendungen. Um funktionelle Eigenschaften gezielt einstellen zu können, benötigt man wohldefinierte hierarchisch geordnete supramolekulare Materialien. Die Selbstorganisation von Flüssigkristallen hat sich als ein extrem nützliches Werkzeug für die Entwicklung nanostrukturierter Materialien bewährt. Wir wählen das anschauliche Beispiel photopolymerisierbarer wasserstoffverbrückter Mesogene, um zu zeigen, dass eine breite Vielfalt funktioneller Materialien aus einem relativ einfachen Satz von Bausteinen hergestellt werden kann. Durch Umsetzung dieser Verbindungen mit anderen reaktiven Mesogenen können nematische, chirale nematische und smektische oder kolumnare flüssigkristalline Phasen gebildet werden, die als Aktuatoren, Sensoren, responsive Reflektoren und nanoporöse Membranen genutzt werden können.

show abstract

Section: Methodsunclassified

Funktionelle organische Materialien auf der Basis polymerisierter flüssigkristalliner Monomere: supramolekulare wasserstoffverbrückte Systeme

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…Both LCs have a rodlike shape and two polymerizable units at each end. The LCs mixture is organized in a smectic state and subsequently photopolymerized to lock in the smectic state in a polymer In a similar approach, nanoporous membranes have also been prepared without the use of a template [75]. These membranes were also built from a mixture of two LCs, an H-bonded dimer and a covalent linker.…”

Section: Hydrogen Bonding In Liquid Crystals As Nanoporous Networkmentioning

confidence: 99%

Hydrogen Bonding in Supramolecular Nanoporous Materials

Kuringen¹,

Schenning

2015

Lecture Notes in Chemistry

View full text Add to dashboard Cite

This chapter provides an overview of the use of hydrogen bonds for the construction of nanoporous materials. These materials attract a great deal of interest because of their large surface area to volume ratio and their applications in areas such as filtration, separation, adsorption, catalysis, and ion conduction. Organic materials are especially appealing for these applications, because their properties can be tailored. The use of supramolecular interactions is required to control the organization of materials at the molecular level. Hydrogen bonds are ideal supramolecular interactions for the construction of these nanoporous materials, thanks to their directionality and reversibility. The directionality causes the positioning molecules in such a way that voids have been created in between the molecules, such as in two-and three-dimensional hydrogen bonded organic frameworks. In a second approach, hydrogen bonded template molecules have been removed from a polymer to create pores. This method is successfully applied to hydrogen bonded block copolymers and liquid crystalline polymers.

show abstract

“…Yet, the generation of defect‐free thin‐film nanostructure arrays remains a grand challenge due to the tendency of these building blocks to self‐assemble into arbitrarily oriented poly‐domain structures . Nevertheless, achieving a thin‐film monolithic alignment of these materials, across the molecule to device length scales, could help to realize compelling advanced applications in areas such porous membranes, organic electronics, and nanolithography …”

Section: Introductionmentioning

confidence: 99%

3D Orientational Control in Self‐Assembled Thin Films with Sub‐5 nm Features by Light

Nickmans

Bögels

Sánchez‐Somolinos

et al. 2017

Small

View full text Add to dashboard Cite

While self‐assembled molecular building blocks could lead to many next‐generation functional organic nanomaterials, control over the thin‐film morphologies to yield monolithic sub‐5 nm patterns with 3D orientational control at macroscopic length scales remains a grand challenge. A series of photoresponsive hybrid oligo(dimethylsiloxane) liquid crystals that form periodic cylindrical nanostructures with periodicities between 3.8 and 5.1 nm is studied. The liquid crystals can be aligned in‐plane by exposure to actinic linearly polarized light and out‐of‐plane by exposure to actinic unpolarized light. The photoalignment is most efficient when performed just under the clearing point of the liquid crystal, at which the cylindrical nanostructures are reoriented within minutes. These results allow the generation of highly ordered sub‐5 nm patterns in thin films at macroscopic length scales, with control over the orientation in a noncontact fashion.

show abstract

Nanoporous Membranes of Hydrogen‐bridged Smectic Networks with Nanometer Transverse Pore Dimensions

Cited by 67 publications

References 39 publications

Funktionelle organische Materialien auf der Basis polymerisierter flüssigkristalliner Monomere: supramolekulare wasserstoffverbrückte Systeme

Funktionelle organische Materialien auf der Basis polymerisierter flüssigkristalliner Monomere: supramolekulare wasserstoffverbrückte Systeme

Hydrogen Bonding in Supramolecular Nanoporous Materials

3D Orientational Control in Self‐Assembled Thin Films with Sub‐5 nm Features by Light

Contact Info

Product

Resources

About