Syndiotactic Polystyrene/Hybrid Silica Spheres of POSS Siloxane Composites Exhibiting Ultra low Dielectric Constant

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Title:	Syndiotactic Polystyrene/Hybrid Silica Spheres of POSS Siloxane Composites Exhibiting Ultra low Dielectric Constant
Authors:	Joseph, A M Nagendra, B Surendran, K P Gowd, E B
Keywords:	syndiotactic polystyrene hybrid silica solution blending thermal stability crystallization dielectric properties
Issue Date:	2-Sep-2015
Publisher:	ACS Publications
Citation:	ACS Applied Materials & Interfaces;7(34):19474–19483
Abstract:	Homogeneously dispersed hybrid silica/syndiotactic polystyrene composites were investigated for low-κ dielectric applications. The composites were prepared by a solution blending method, and their microstructures were analyzed by SEM, TEM, and AFM. Crystallization and phase transformation behavior of sPS were investigated using differential scanning calorimetry and wide-angle X-ray diffraction. These composites exhibited improved thermal stability and reduced thermal expansion coefficients. Promising dielectric properties were observed for the composites in the microwave frequency region with a dielectric constant (κ = 1.95) and loss (tan δ = 10–4) at 5 GHz.
URI:	https://doi.org/10.1021/acsami.5b05933 http://localhost:8080/xmlui/handle/123456789/4767
Appears in Collections:	2015

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