聚丙烯纖維經甲基丙烯酸及丙烯酸接枝之溶劑效應研究

Solvent Effects of Grafting Methacrylic Acid and Acrylic Acid Monomers onto Polypropylene Fibers

陳煌文(H. W. Chen) ； 陳博洋(B. Y. Chen) ； 王權泉(C. C. Wang)

《華岡紡織期刊》 9卷2期 (2002/06) Pp. 118-127

摘要

In this study, the grafting of methacrylic acid and acrylic acid onto polypropylene fibers using benzoyl peroxide as a chemistry, initiator has been investigated. The influence of different solvent ( Toluene, Xylene, Chlorofonn, Dichloroethane ) on the kinetics of the reactions were studied. The activation energy, kinetics of the reactions, dependence of rate of grafting on the monomer and initiator concentrations and chain transfer constant for solvent on the grafting yield of grafted fibers in the presence of solvent at different conditions of grafting will be examined. The results indicated that the better grafting yield occurred at solvent concentration of 25g/L at methacrylic acid and acrylic reaction systems. In general, the lower activation energy could be achieved if the solvent’s solubility parameter closed to the polypropylene fibers, especially the dichloroethane. In the methacrylic acid and acrylic acid reaction systems, the dependence of rate of grafting on the monomer and initiator concentrations are Rp = k[MAA]0.72[BPO]1.00 and Rp＞ =k[AA]0.91[BPO]0.17 respectively

關鍵字

聚丙烯纖維 ； 申基丙烯酸 ； 丙烯酸 ； 接枝 ； 活化能 ； 向溶劑之鏈轉移常數

並列摘要

In this study, the grafting of methacrylic acid and acrylic acid onto polypropylene fibers using benzoyl peroxide as a chemistry, initiator has been investigated. The influence of different solvent ( Toluene, Xylene, Chlorofonn, Dichloroethane ) on the kinetics of the reactions were studied. The activation energy, kinetics of the reactions, dependence of rate of grafting on the monomer and initiator concentrations and chain transfer constant for solvent on the grafting yield of grafted fibers in the presence of solvent at different conditions of grafting will be examined. The results indicated that the better grafting yield occurred at solvent concentration of 25g/L at methacrylic acid and acrylic reaction systems. In general, the lower activation energy could be achieved if the solvent’s solubility parameter closed to the polypropylene fibers, especially the dichloroethane. In the methacrylic acid and acrylic acid reaction systems, the dependence of rate of grafting on the monomer and initiator concentrations are Rp = k[MAA]0.72[BPO]1.00 and Rp＞ =k[AA]0.91[BPO]0.17 respectively

並列關鍵字

polypropylene fiber ； methacrylic acid ； acrylic acid ； graft ； activation energy ； chain transfer constant for solvent