| STUDY ON ETHERIFICATION OF TERMINAL HYDROXY GROUP OF POLYETHYLENE GLYCOL MONOALKYL ETHERS |
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| 引用本文： | 柳晓,邹宗柏,佘健.STUDY ON ETHERIFICATION OF TERMINAL HYDROXY GROUP OF POLYETHYLENE GLYCOL MONOALKYL ETHERS[J].东南大学学报,1994(1). |
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| 作者姓名： | 柳晓 邹宗柏 佘健 |
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| 摘 要： | ＳＴＵＤＹＯＮＥＴＨＥＲＩＦＩＣＡＴＩＯＮＯＦＴＥＲＭＩＮＡＬＨＹＤＲＯＸＹＧＲＯＵＰＯＦＰＯＬＹＥＴＨＹＬＥＮＥＧＬＹＣＯＬＭＯＮＯＡＬＫＹＬＥＴＨＥＲＳＬｉｕＸｉａｏ（柳晓）（ＮａｎｊｉｎｇＲａｉｌｗａｙＭｅｄｉｃａｌＣｏｌｌｅｇｅ）ＺｏｕＺｏｎ...
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STUDY ON ETHERIFICATION OF TERMINALHYDROXY GROUP OF POLYETHYLENEGLYCOL MONOALKYL ETHERS |
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| Liu Xiao.STUDY ON ETHERIFICATION OF TERMINALHYDROXY GROUP OF POLYETHYLENEGLYCOL MONOALKYL ETHERS[J].Journal of Southeast University(English Edition),1994(1). |
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| Authors: | Liu Xiao |
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| Institution: | Liu Xiao(Nanjing Railway Medical College)Zou Zongbai;She Jian(Department of Chemistry and Chemical Fngineering) |
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| Abstract: | In this paper etherification of the terminal hydroxy group of polyethy-lene glycol monoalkyl ethers is studied and a convenient method for the preporation ofpolyethylene glycol dialkyl ethers is propused. Nine methyl , butyl and benzyl deriva-tives are obtained by using Williamson synthetie method. The effect of reaction pa-rameters on the protective ratio is examined by using the optimum seeking method.The protective efficiency is evaluated by cumporing the variation of hydroxy value.The best reaction conditions are found by experiment.It is also found that the protec-tive ratio of methylation is higher than that of butylation while the protective ratio ofbenzylation is the lowest. The protective ratio of AEO9 is equivalant to OP8 and theprotective ratio of AFO3 is much lower. |
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| Keywords: | polyethylene glycul ethers etherification ether derivative |
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