Preparation and properties of poly(amide
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Sheng-Huei Hsiao; Chin-Ping Yang; Feng-Yueh Wu
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Article
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1994
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John Wiley and Sons
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English
β 611 KB
## Abstract Four dicarboxylic acids containing one preformed imide ring were prepared by condensation of trimellitic anhydride with Ξ±βamino acids such as glycine, DLβalanine, DLβvaline, and DLβlcucinc. These diacids were subsequently directly polycondensated with various aromatic diamines using tri