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Flexible Polyimide Aerogels with Dodecane Links in the Backbone Structure
Polyimide aerogels using 1,12-dodecyldiamine (DADD), 3,3′-dimethylbenzidine (DMBZ), and 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA) and cross linked using 1,3,5-triaminophenoxybenzene (TAB) were synthesized. Substitution of the aromatic diamine, DMBZ, with varying amounts of the aliphatic d...
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Published in: | ACS applied materials & interfaces 2020-07, Vol.12 (29), p.33288-33296 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Polyimide aerogels using 1,12-dodecyldiamine (DADD), 3,3′-dimethylbenzidine (DMBZ), and 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA) and cross linked using 1,3,5-triaminophenoxybenzene (TAB) were synthesized. Substitution of the aromatic diamine, DMBZ, with varying amounts of the aliphatic diamine, DADD, increases the flexibility in the backbone structure of the prepared aerogel. These aerogels are also lightweight, low density, have a low dielectric constant, and high modulus. Their overall properties (density, shrinkage, porosity, dielectric constant, water uptake, and modulus) and potential use as a conformal substrate for lightweight, high-performance antennas are discussed. |
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ISSN: | 1944-8244 1944-8252 |
DOI: | 10.1021/acsami.0c09321 |