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2000•Wuhan University JournalRequires access

Chromic Acid Initiated Grafting of Methyl Methacrylate onto Ramie Fibers

Xiao Chao

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Abstract

Graft copolymerization of methyl methacrylate (MMA) onto ramie fibers has been carried out with chromic acid as initiator. The effects of the concentrations of chromic acid, MMA and temperature as well as time of polymerization on the graft ratio, yield of homopolymer have been examined. The optimum conditions of grafting are: concentration of chromic acid 7×10 -3 mol·L -1 , of MMA 0.7 mol·L -1 , of HNO 3 1 mol·L -1 , temperature 50℃ and time 12 h.

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Graft copolymerization of methyl methacrylate (MMA) onto ramie fibers has been carried out with chromic acid as initiator. The effects of the concentrations of chromic acid, MMA and temperature as well as time of polymerization on the graft ratio, yield of homopolymer have been examined. The optimum conditions of grafting are: concentration of chromic acid 7×10 -3 mol·L -1 , of MMA 0.7 mol·L -1 , of HNO 3 1 mol·L -1 , temperature 50℃ and time 12 h.

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Available abstract

Graft copolymerization of methyl methacrylate (MMA) onto ramie fibers has been carried out with chromic acid as initiator. The effects of the concentrations of chromic acid, MMA and temperature as well as time of polymerization on the graft ratio, yield of homopolymer have been examined. The optimum conditions of grafting are: concentration of chromic acid 7×10 -3 mol·L -1 , of MMA 0.7 mol·L -1 , of HNO 3 1 mol·L -1 , temperature 50℃ and time 12 h.

Key concepts: Ramie, Grafting, Methyl methacrylate, Chromic acid, Copolymer, Polymerization, Polymer chemistry, Yield (engineering)

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