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Updated: Feb 15, 2026

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends
Published on: January 17, 2017
Investigation of phase separated polyimide blend films containing boron nitride using FTIR imaging
Boknam Chae1, Deok Gi Hong2, Young Mee Jung3
1Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea.
Abstract:
Immiscible aromatic polyimide (PI) blend films and a PI blend film incorporated with thermally conductive boron nitride (BN) were prepared, and their phase separation behaviors were examined by optical microscopy and FTIR imaging. The 2,2'-bis(trifluoromethyl)benzidine (TFMB)-containing and 4,4'-thiodianiline (TDA)-containing aromatic PI blend films and a PI blend/BN composite film show two clearly separated regions; one region is the TFMB-rich phase, and the other region is the TDA-rich phase. The introduction of BN induces morphological changes in the immiscible aromatic PI blend film without altering the composition of either domain. In particular, the BN is selectively incorporated into the TDA-rich phase in this study.
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