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The anti‐ultraviolet (UV) aging of the poly(p‐phenylene benzobisoxazole) (PBO) is very important and has been paid much attention recently. In this study, copolymerization of PBO and α‐amino phthalocyanine copper (α‐TDMACuPc) was carried out by in situ polymerization and the fiber was obtained by dry‐jet wet spinning in the liquid crystal state. Inducing of α‐TDMACuPc into PBO macromolecules improve...
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