PMSE 332 |
| The chemical stability of the matrix resin which is a major component for fiber reinforced composites is one of the most important criteria for the resin selection. In this study, we are going to investigate the chemical stability of bifunctional polybenzoxazines in aprotic polar solvents such as DMF and DMSO instead of protic polar solvent such as carboxylic acid. Especially, the effect of proton ion which is not existed in aprotic polar solvents on the stability of the polymer structure is discussed. To investigated these behaviors in detail, various benzoxazine model compounds in aprotic polar solvents are analysed by means of the proton nuclear magnetic resonance (1H-NMR). Also, all polymers and disintegrated residues are characterized by fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). |
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Joint PMSE/POLY Poster Session
6:00 PM-8:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Polymeric Materials: Science & Engineering |