Applications of polyimide coatings: a review

Hiçyilmaz, Ayşe Sezer; Bedeloğlu, Ayşe Çelik

doi:10.1007/s42452-021-04362-5

Cited by 118 publications

(83 citation statements)

References 165 publications

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“…Aromatic polyimides are distinguished by increased thermal stability, low coefficient of linear thermal expansion, and high mechanical and dielectric properties, as well as good radiation and chemical resistance [ 3 , 4 ]. On the basis of PI, films, coatings, varnishes, composites, binders, and foams are obtained [ 5 ]. In addition, they can be spun into fibers with exceptional technological and operational properties [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Polyetherimide Melt-Extruded Fibers Modified by Carbon Nanoparticles

et al. 2021

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The fibers based on thermoplastic partially crystalline polyetherimide R-BAPB modified by vapor grown carbon nanofibers (VGCF) were prepared by melt extrusion, exposed to orientational drawing, and crystallized. All of the samples were examined by scanning electron microscopy, X-ray scattering, and differential scanning calorimetry to study how the carbon nanofiller influences on the internal structure and crystallization behavior of the obtained R-BAPB fibers. The mechanical properties of the composite R-BAPB fibers were also determined. It was found that VGCF nanoparticles introduced into R-BAPB polyimide can act as a nucleating agent that leads, in turn, to significant changes in the composite fibers morphology as well as thermal and mechanical characteristics. VGCF are able to improve an orientation degree of the R-BAPB macromolecules along the fiber direction, accelerate crystallization rate of the polymer, and enhance the fiber stability during crystallization process.

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Section: Introductionmentioning

confidence: 99%

Investigation of Polyetherimide Melt-Extruded Fibers Modified by Carbon Nanoparticles

et al. 2021

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“…2.7 K [6]. In this context, polymers are a viable alternative for the development of materials because several polymers present a wide service temperature range [7,8]. However, they lack resistance to high-energy radiation; consequently, they tend to be degraded with low radiation doses [9].…”

Section: Introductionmentioning

confidence: 99%

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

Acevedo-Del-Castillo

Águila-Toledo

Maldonado-Magnere

et al. 2021

IJMS

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This paper revises the use of polymer nanocomposites to attenuate high-energy electromagnetic radiation (HE-EMR), such as gamma radiation. As known, high-energy radiation produces drastic damage not only in facilities or electronic devices but also to life and the environment. Among the different approaches to attenuate the HE-EMR, we consider the use of compounds with a high atomic number (Z), such as lead, but as known, lead is toxic. Therefore, different works have considered low-toxicity post-transitional metal-based compounds, such as bismuth. Additionally, nanosized particles have shown higher performance to attenuate HE-EMR than those that are micro-sized. On the other hand, materials with π-conjugated systems can also play a role in spreading the energy of electrons ejected as a consequence of the interaction of HE-EMR with matter, preventing the ionization and bond scission of polymers. The different effects produced by the interactions of the matter with HE-EMR are revised. The increase of the shielding properties of lightweight, flexible, and versatile materials such as polymer-based materials can be a contribution for developing technologies to obtain more efficient materials for preventing the damage produced for the HE-EMR in different industries where it is found.

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“…The prepared PI nanofibers hold many attractive applications. [17,18] However, till now, the application of PI nanofibers as the stabilizer and supporting matrix for Pd NPs is still not known to the best of our knowledge, even though they provide abundant chelating sites (amide bond) for Pd NPs besides the larger surface area.…”

Section: Introductionmentioning

confidence: 99%

Palladium nanoparticles encapsulated in polyimide nanofibers: An efficient and recyclable catalyst for coupling reaction

Gou

Gao

et al. 2021

Applied Organom Chemis

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In this study, palladium‐encapsulated poly(amic acid) (Pd@PAA) nanofibers were prepared by electrospinning, followed by thermal imidization to synthesize palladium‐encapsulated polyimide (Pd@PI) nanofibers. Scanning electron microscopy (SEM) images confirmed the preparation of uniform and smooth Pd@PAA and Pd@PI nanofibers. Thermogravimetric analysis (TGA) results reveal that the Pd@PI nanofibers possessed excellent thermal stability. The dispersion of palladium nanoparticles in the polyimide nanofibers was characterized by transmission electron microscopy (TEM) and X‐ray diffraction (XRD). The catalysis results show that this Pd@PI fibrous catalyst was very efficient to catalyze the cross‐coupling reactions of aromatic iodides with n‐butyl acrylate (Heck reaction) or phenylboronic acid derivatives (Suzuki reaction) to afford the desired products in good to excellent yields. Moreover, the Pd@PI catalyst could be easily separated and recovered from the reaction mixture by simple filtration due to the regular fibrous structure and reused for 10 times for both Heck and Suzuki reactions without obvious loss of its initial catalytic activity. Thus, the Pd@PI nanofiber catalyst holds great potential in chemical industry in terms of its excellent catalytic activity and stability.

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Applications of polyimide coatings: a review

Cited by 118 publications

References 165 publications

Investigation of Polyetherimide Melt-Extruded Fibers Modified by Carbon Nanoparticles

Investigation of Polyetherimide Melt-Extruded Fibers Modified by Carbon Nanoparticles

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

Palladium nanoparticles encapsulated in polyimide nanofibers: An efficient and recyclable catalyst for coupling reaction

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