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Hydrophobic Organic Aerogels and Xerogels Based on a Phloroglucinol Ether

Anklam, Thomas and Farés, Christophe and Tannert, René (2022) Hydrophobic Organic Aerogels and Xerogels Based on a Phloroglucinol Ether. 6th International Seminar on Aerogels, 28.-30. Sep. 2022, Hamburg, Deutschland.

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Abstract

Aerogels are open porous nanostructured solids obtained by a sol-gel process followed by drying of the wet gel. They can be of inorganic or organic nature, rigid or flexible, translucent or opaque and are characterized by their remarkably low densities, low heat conductivities, high surface areas and low sound transmittance.[1] The most prominent example of an organic aerogel is the resorcinol-formaldehyde (RF) aerogel.[2] The phenolic nature of RF renders the material hydrophilic, a factor that partly limits its commercial use.[3] In order to address this issue, we report on the condensation of the phenolic ether 1,3,5-trimethoxybenzene (TMB) with formaldehyde (F) yielding inherently hydrophobic aerogels. Suitable synthetic conditions, as well as investigations on structure and wetting properties of the aerogels are presented. [1]: L. Ratke, P. Gurikov, The Chemistry and Physics of Aerogels: Synthesis, Processing, and Properties, Cambridge University Press, Cambridge, 2021. [2]: a) R. W. Pekala, J. Mater. Sci. 1989, 24, 3221-3227. b) S. Mulik, C. Sotiriou-Leventis, N. Leventis, Chem. Mater. 2007, 19, 6138-6144. c) A. M. ElKhatat, S. A. Al-Muhtaseb, Adv. Mater. 2011, 23, 2887-2903. [3]: A. V. Rao, G. M. Pajonk, D. Y. Nadargi, M. M. Koebel, in Aerogels Handbook (Eds.: M. A. Aegerter, N. Leventis, M. M. Koebel), Springer New York, New York, NY, 2011, pp. 79-101.

Item URL in elib:https://elib.dlr.de/188747/
Document Type:Conference or Workshop Item (Poster)
Title:Hydrophobic Organic Aerogels and Xerogels Based on a Phloroglucinol Ether
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Anklam, ThomasThomas.Anklam (at) dlr.dehttps://orcid.org/0000-0002-3192-907X
Farés, Christophefares (at) mpi-muelheim.mpg.dehttps://orcid.org/0000-0001-6709-5057
Tannert, RenéRene.Tannert (at) dlr.dehttps://orcid.org/0000-0001-9484-8886
Date:28 September 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmailEditor's ORCID iD
Smirnova, Irinairina.smirnova@tuhh.dehttps://orcid.org/0000-0003-4503-4039
Status:Published
Keywords:aerogel, hydrophobic, phloroglucinol ether, NMR, sorption, wetting behavior
Event Title:6th International Seminar on Aerogels
Event Location:Hamburg, Deutschland
Event Type:international Conference
Event Dates:28.-30. Sep. 2022
Organizer:International Society for the Advancement of Supercritical Fluids
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - FFAE - Fahrzeugkonzepte, Fahrzeugstruktur, Antriebsstrang und Energiemanagement
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Anklam, Thomas
Deposited On:17 Oct 2022 08:15
Last Modified:17 Oct 2022 08:15

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