Nanostructured High-Performance Materials Consisting of Bismaleimide and Functional Liquid Crystal Monomer
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 11CN-COOH-grafted DABPA with BMPM, yielding BMI resin functionalized with liquid crystal monomer. In so doing, we have elucidated the reaction (cure) mechanism between 11CN-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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2004
- Accession Number
- ADA428496
Entities
People
- Chang D. Han
Organizations
- University of Akron