1.序言早在1979年人们就发现LiCl/DMAc能够溶解纤维素,这个现象直到现在无论是理论上还是工业上仍受到人们广泛的重视。最初的研究是纤维素的溶解机理,人们认为:数量级在几个埃的不同性质组分的分子相互接近,形成分子络合物而溶解。最近的理论认为:LiCl/DMAC形成的分子内络合物能与纤维素中羟基基团相互作用,可能在 1. Introduction As early as 1979, LiCl / DMAc was found to be able to dissolve cellulose. This phenomenon has until now been widely regarded in theory and industry. The original study was the dissolution mechanism of cellulose. It is believed that molecules of different nature, on the order of a few angstroms, approach each other to form molecular complexes and dissolve. Recent theory suggests that the intramolecular complex formed by LiCl / DMAC interacts with hydroxyl groups in cellulose possibly at