Analysis and Characterization of Aromatic Polyamide Copolymer Particles with Trifluoromethyl and Amino Groups
Nano-sized aromatic polyamide copolymer particles with trifluoromethyl (CF3) and amino (NH2) groups were prepared by copolymerizing 4,4′-diphenyldicarbonyl chloride (DPE) with 2,2-bis(4-aminophenyl) hexafluoropropane (BAHFP) and bis(3,4-diaminophenyl) ether
(BDAPE). They were spherical particles with diameters of 150–320 nm. The diameter varied depending on the monomer ratio. The copolymer compositions of the products were characterized by FT-IR and Thermogravimetric analysis (TGA) measurements and found to be in close agreement with
the monomer ratios. In addition, all of the products containing BDAPE were found to have a partially cross-linked structure. The amount of CF3 and NH2 groups attached to the particles changed depending on the monomer ratio.
Keywords: Aromatic polyamide particles; Copolymer composition; Cross-linking; Trifluoromethyl and amino groups
Document Type: Research Article
Affiliations: Technology Research Institute of Osaka Prefecture, Osaka, Japan
Publication date: 01 November 2011
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