Abstract
The new type phenylethynyl terminated thermosetting a-BPDA based polyimide has been developed. The alcoholic solution comprising asymmetric BPDA (a-BPDA) derivative, p-phenylenediamine, 1,3-bis(4-aminophenoxy)-benzene and 4-phenylethynylphthalic anhydride derivative was used for the formation of prepreg containing solvent. The prepreg showed excellent processablity for the fabrication of composite using a conventional autoclave and its cured material exhibited high Tg of 365°C and balanced mechanical properties.
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