ahese polymers showed good solubility in polar aprotic solvents, such as dimethylacetamide (DMAc), dimethylsulfoxide (DMSO), and NMP. The chemical structures of the polymers were confirmed by FT-IR and 1H NMR spectra. hese聚合物在极性aprotic溶剂显示了好可溶性,例如dimethylacetamide (DMAc),二甲亚砜 ...