Public reporting burden for this collection of information is estimated to average 1 hour per response, including the Urne for reviewing instruction data needed, and completing and reviewing this collection of information. DISTRIBUTION / AVAILABILITY STATEMENTApproved for public release. ^Distribution is unlimited. SUPPLEMENTARY NOTES None ABSTRACT .We have synthesized a liquid-crystalline monomer, 12-[4-cyanobiphenyl-4'-oxy] dodecanoic acid (11CN-COOH), and then grafted it onto the DABPA and then cured the 1 lCN-COOH-grafted DABPA with BMPM, yielding BMI resin functionalized with liquid crystal monomer. In so doing, we have elucidated the reaction (cure) mechanism between-1 lCN-COOH-grafted DABPA and BMPM using Fourier transform infrared (FTIR) spectroscopy. Thermal transition temperatures before and after the cure of BMI resin and also functionalized BMI resin were measured using differential scanning calorimetry. Micrographs of BMI resin and also functionalized BMI resin were obtained using optical microscopy. Finally, the mechanical properties of cured BMI and functionalized BMI resins were measured. It has been found that the flexural modulus of functionalized BMI resin is about two times greater than that of neat BMI resin, indicating that the addition of liquid crystalline monomer has enhanced the toughness of BMI resin. SUBJECT TERMS ~Bismaleimide; Nanostructuree Materials; Functionalized BMI Resin
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