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Processing of thermoset rigid-rod molecular composites
Processing of thermoset rigid-rod molecular composites
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机译:热固性刚性棒分子复合材料的加工
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摘要
Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermosetting matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an alcoholic or aprotic solvent, dissolving the thermosetting polymer in an alcoholic or aprotic solvent, combining the two solutions and recovering the resulting molecular composite from the combined solution. These molecular dispersions consist essentially of rigid-rod polybenzobisazole polymer/copolymer having sulfonic acid groups pendant to the polymer/copolymer backbone and thermosetting polymers selected from the group consisting of iminobis(N-propyl-2-phenylethynyl-phthalimide), N- ethyl-(2,6-di-benzocyclobutenoxy)benzylamine, iminobis(N-propylnadic imide) and difunctional benzoxazine monomers of the formula ##STR1## wherein X is a single bond, --CO-- or --C(CH.sub.3).sub.2 -- and Q is -- CH.sub.3 or --C.sub.6 H.sub.5.
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