Sodium → 2-Formylbenzenesulfonic acid
반응식
[Na].[S:2]([C:6]1[CH:13]=[CH:12][CH:11]=[CH:10][C:7]=1[CH:8]=[O:9])([OH:5])(=[O:4])=[O:3].[Na]>>[S:2]([C:6]1[CH:13]=[CH:12][CH:11]=[CH:10][C:7]=1[CH:8]=[O:9])([OH:5])(=[O:4])=[O:3]참가 물질
3
실험 절차
First, 2-sulfobenzaldehyde sodium salt (manufactured by Tokyo Chemical Industry Co., Ltd.) was subjected to ion exchange by use of ion exchange resin (15JWET [trademark], manufactured by Organo Corporation), so that sodium ions were removed to obtain 2-sulfobenzaldehyde. Independently, 50.0 g of 15 wt % PA100 aqueous solution was placed in a three-necked round flask, and then stirred. After the temperature of the solution was adjusted at 24° C., 1.2241 g of the obtained 2-sulfobenzaldehyde was added and then stirred for 12 hours, to obtain the aimed polymer PA121. The obtained polymer was analyzed by means of NMR. As a result, it was verified that 5 mol % of all amino groups in PA100 before substitution were replaced with 2-sulfobenzimino groups.
후처리
- customwere removed