Poly （phenylene sulfide amide） （PPSA） has been synthesized by using sulfur as Ssource which reacts with dichlorobenzamide （DC......

New acetylene monomers, 6-{[(1-naphthylethynyl-4-phenyl)carbonyl]oxy}-l-phenyl-l-hexyne (1), 2,5-diethynylthiophene (3),......