Dimethylformamide → N,N,N',N',N''-Pentamethylguanidine
반응식
S(F)(F)(=O)=O.[CH3:6][N:7]([CH3:13])[C:8]([N:10]([CH3:12])[CH3:11])=[NH:9].[CH3:14]N(C)C=O>>[CH3:6][N:7]([CH3:13])[C:8](=[N:9][CH3:14])[N:10]([CH3:12])[CH3:11]참가 물질
4
실험 절차
A perfluorinated polymer precursor (film thickness: 25 μm, sulfonyl fluoride form, EW1100) was treated with 1,1,3,3-tetramethylguanidine in dimethylformamide (DMF) solution at 90° C. for 24 hr. After washing with water, the membrane was dried under a vacuum plate at 75° C. The absorption by C═N was observed at 1525-1580 cm−1 by FT-IR, and C═N and N—CH3 peak was observed at 162 and 39.5 ppm by C-NMR, respectively. Tetramethlguanidine functionalized perfluorinated polymers were further treated with dimethyl sulfate (DMS) in DMF at 90° C. for 24 hr. Pentamethylguanidine functionalized perfluorinated polymer was obtained. Guanidine functionalized perfluorinated polymers were further treated with 1 M NaOH for 4 hr at boiling temperature followed by washing with water.