Study on the Diffusion Coefficients of Molecules in Precursor Varnishes and Solid Polyimides for Understanding the Polyimide Curing Process

Molecular diffusion in polyimides and their precursors, such as poly­(amic acid) (PAA) varnishes, must be quantitatively analyzed to understand their reaction kinetics and improve their industrial production. Herein, the diffusion coefficients of dimethylacetamide (DMAc) and PAA in varnishes were me...

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Veröffentlicht in:	Industrial & engineering chemistry research 2024-03, Vol.63 (11), p.4934-4941
Hauptverfasser:	Kokubu, Ryo, Hara, Natsuko, Yamamoto, Ayumi, Tomizawa, Keiichi, Matsukawa, Shingo, Inasawa, Susumu, Ohashi, Hidenori
Format:	Artikel
Sprache:	eng
Schlagworte:	diffusivity gas chromatography nuclear magnetic resonance spectroscopy polymers reaction kinetics Thermodynamics, Transport, and Fluid Mechanics viscosity
Online-Zugang:	Volltext
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