초록 |
Acolorless fluorinated polyamide-imide (fAI) is synthesized and its optical andmechanical properties are characterized in this study. Terephthaloyl chloride(TPCL) is conjugated with2,2'-bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diamine (TFDB) to generate anamine-terminated amide oligomer (AAO). AAO is then reacted with4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA), 3,3′,4,4′-biphenyltetracarboxylicdianhydride (BPDA), and 1,2,3,4-cyclobutanetetracarboxylicdianhydride (CBDA) to prepare fAI. Additionally,three references are prepared based on AAO and 6FDA, AAO and BPDA, and AAO and CBDA, respectively. When compared to reference films, the fAI film exhibitsoutstanding optical and mechanical properties. This is attributedto the combined interaction of hydrogen bonds and charge transfer complexes between fAI chains. |