Scalable, Versatile Synthesis of Ultrathin Polyetherimide Films and Coatings via Interfacial Polymerization
Name
Adv Funct Materials - 2023 - Chazot - Scalable Versatile Synthesis of Ultrathin Polyetherimide Films and Coatings via.pdf
Description
Published version
Size
2.4 MB
Format
Adobe PDF
Checksum (MD5)
f1a6f2368cae544c0a674e62ed4d0916
Author(s)
Chazot, Cécile A. C.
Thrasher, Carl J.
Peraire‐Bueno, Alexander
Durso, Michael N.
Macfarlane, Robert J.
Hart, A. John
Date Issued
June 2023
Journal
Advanced Functional Materials
Publisher
Wiley
Citation
Chazot, Cécile A. C., Thrasher, Carl J., Peraire‐Bueno, Alexander, Durso, Michael N., Macfarlane, Robert J. et al. 2023. "Scalable, Versatile Synthesis of Ultrathin Polyetherimide Films and Coatings via Interfacial Polymerization." Advanced Functional Materials, 33 (24).
Version
Final published version
Abstract
AbstractPolyetherimides (PEI) are high‐performance thermoplastic polymers featuring a high dielectric constant and excellent thermal stability. In particular, PEI thin films are of increasing interest for use in solid‐state capacitors and membranes, yet the cost and thickness are limited by conventional synthesis and thermal drawing techniques. Here, a method of synthesizing ultrathin PEI films and coatings is introduced based on interfacial polymerization (IP) of poly(amic acid), followed by thermal imidization. Control of transport, reaction, and precipitation kinetics enables tailoring of PEI film morphology from a nanometer‐scale smooth film to a porous micrometer‐scale layer of polymer microparticles. At short reaction times (≈1 min) freestanding films are formed with ≈1 µm thickness, which to our knowledge surpass commercial state‐of‐the‐art films (3–5 µm minimum thickness) made by thermal drawing. PEI films synthesized via the IP route have thermal and optical properties on par with conventional PEI. The use of the final PEI is demonstrated in structurally colored films, dielectric layers in capacitors, and show that the IP route can form nanometer‐scale coatings on carbon nanotubes. The rapid film formation rate and fine property control are attractive for scale‐up, and established methods for roll‐to‐roll processing can be applied in future work.
Subjects
Electrochemistry
Condensed Matter Physics
Biomaterials
Electronic, Optical and Magnetic Materials
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/adfm.202214566
