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Updated: Feb 2, 2026

Fabrication of Large-area Free-standing Ultrathin Polymer Films
Published on: June 3, 2015
Sn-Polyester/Polyimide Hybrid Flexible Free-Standing Film as a Tunable Dielectric Material
Shamima Nasreen1, Matthew L Baczkowski2, Gregory M Treich2
1Department of Chemistry, University of Connecticut, 55 N Eagleville Road, Storrs, CT 06269, USA.
Abstract:
Flexible films having high dielectric constants with low dielectric loss have promising application in the emerging area of high-energy-density materials. Here, for the first time, an organometallic, Sn-polyester-containing hybrid free-standing film in polyimide matrix is reported. Polyimide, pBTDA-HDA, is used with poly(dimethyltin glutarate) and poly(dimethyltin-3,3-dimethyglutarate) (pDMTDMG) for having a processable film with tunable dielectric properties. Hybrid film with 60% pDMTDMG and 40% PI (HB2) is found to have improved dielectric features over previously synthesized organic polyimide and organometallic Sn-polyester homopolymers. These novel organometallic-organic hybrid systems expanded a new area of dielectrics for next-generation electronics with superior overall electrical performance.
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