Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/3380
Title: Sustainable in Situ Approach to Covalently Functionalize Graphene Oxide with POSS Molecules Possessing Extremely Low Dielectric Behavior
Authors: Angel Mary Joseph
Nagendra, B
Surendran, K P
Bhoje Gowd, E
Issue Date: 5-Mar-2019
Publisher: American Chemical Society
Citation: Langmuir; 35(13):4672–4681
Abstract: Incorporation of multifunctional inorganic additives into the commercial polymers still stands as the most captivating and effective way to realize new-generation electronic components. Here, we introduce a simple, cost-effective, and environmentally benign method to covalently functionalize graphene oxide (GO) with vinyl- and aminopropyl-functionalized hybrid silica spheres with a polyhedral oligomeric silsesquioxane (POSS)–siloxane composition. The reaction has been carried out in a mixture of ethanol and water (used as a medium) at ambient conditions with silane precursors. Later, the synthesized hybrid material has been tested for its dielectric properties after blending with syndiotactic polystyrene, a commercially available insulating semicrystalline polymer. It was observed that the dielectric constant decreases with the addition of GOPOSS up to 1.85 with a dielectric loss of 0.02 at 5 GHz. Significant improvements in the thermal properties of the composites were verified with minimal filler loading.
Appears in Collections:2019

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