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Structure – Property Relationship of Polyimides Based on Pyromellitic Dianhydride and Short-Chain Aliphatic Diamines for Dielectric Material Applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Baldwin, Aaron F. Wang, Chenchen Ramprasad, R. Sotzing, Gregory A. |
| Copyright Year | 2013 |
| Abstract | Most polyolefins that are used for dielectric materials exhibit a low dielectric constant and operating temperatures up to 70 C. Polyimides offer a means to a higher dielectric constant material by the introduction of a polar group in the polymer backbone and are thermally stable at temperatures exceeding 250 C. A common dianhydride, pyromellitic dianhydride (PMDA), is reacted with various short-chain diamines to produce polymers with high imide density. Homopolymers and copolymers synthesized had dielectric constants ranging from 3.96 to 6.57. These materials exhibit a dielectric constant twice that of biaxially oriented polypropylene and therefore a twofold increase in capacitance as well as maintaining low dissipation factors that are acceptable for this application. The experimental dielectric constants of these materials are also compared to density functional theory calculations and exhibit a close relationship. VC 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 000: 000–000, 2013 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ramprasad.mse.gatech.edu/wp-content/uploads/2018/03/90.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | APPL1 gene Copolymerization Density functional theory Diamine oxidase:ACnc:Pt:Ser/Plas:Qn Diamines Electric Capacitance Functional theories of grammar Imides Internet backbone John D. Wiley Periodicals Polyethylenes Polymer Polymers Polypropylenes Salicylic Acid 20 MG/ML Medicated Liquid Soap Sensorineural Hearing Loss (disorder) Vertebral column alkyl fat-soluble vitamin pyromellitic dianhydride |
| Content Type | Text |
| Resource Type | Article |
