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Citation: ZHANG Wan-Xi, ZHANG Chang-Chun, SUN Guo-En, DONG Wen-Fei, YU Li, SHI Hong-Gao. Graft Polymerization of N,N'-Methylenebisacrylamide and Crosslinking with Preirradiated PVA Fiber[J]. Chinese Journal of Applied Chemistry, ;2002, 19(1): 61-65. shu

Graft Polymerization of N,N'-Methylenebisacrylamide and Crosslinking with Preirradiated PVA Fiber

1.
a Institution of Material Science and Engineering, Jilin University, Changchun;
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b Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Corresponding author: ZHANG Wan-Xi,
Received Date: 11 March 2001
Available Online: 1 August 2001

Polyvinyl alcohol(PVA) preirradiated by ⁶⁰CoV ray was graft copolymerized and crosslinked with N,N'-methylenebisacrylamide(MBAA) in buffered aqueous solution in the presence of ferrous ions. The effects of monomer concentration, mass ratio of MBAA to PVA, ferrous ion concentration, pH value, temperature and time on the grafting degree were investigated. The results showed that the softing point of PVA could be increased 15%~20% under the following grafting conditions:c(Fe²⁺)>0.001 mol/L, c(MBAA)=2.5 g/dL, m(N,N'-MBAA)/m(PVA)>0.4, pH=3.4, at 80℃ for 15~30 min.
- polyvinyl alcohol,
- N,N'-methylenebisacrylamide,
- graft copolymerization crosslinking,
- ⁶⁰Co irradiation
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