| STUDIES ON COPOLYCONDENSATION MECHANISMS FROM m-METHOXY-p-ACETOXYBENZOIC ACID,p-ACETOXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE) |
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| 作者姓名： | 李新贵 关桂荷 孙桐 |
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| 作者单位： | Department of Chemical-fiber Technology，Department of Chemical-fiber Technology，Department of Chemical-fiber Technology Institute of Membrane Separation Engineering，Tranjin Institute of Textile Science and Technology，63 Chenglin Zhuang Road，Tianjin 300160，P.R.China. |
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| 摘 要： | Copolycondensation mechanisms for the terpolyester system from m-methoxy-p-acetoxybenzoic acid,p-acetoxybenzoic acid and poly(ethylene terephthalate)are first investigatedby high resolution proton NMR spectroscopy at 400 MHz.A series of reactivity ratios of thecopolycondensation reactions are given.The results shown that the m-methoxy-p-acetoxybenzoicacid tends to homopolymerize,while the p-acetoxybenzoic acid,and the ethylene terephthalate unitespecially,tend to copolymerize with the m-methoxy-p-acetoxybenzoic acid.
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STUDIES ON COPOLYCONDENSATION MECHANISMS FROM m-METHOXY-p-ACETOXYBENZOIC ACID,p-ACETOXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE) |
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| Li Xingui Guan Guihe Sun Tong.STUDIES ON COPOLYCONDENSATION MECHANISMS FROM m-METHOXY-p-ACETOXYBENZOIC ACID,p-ACETOXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE)[J].Journal of Donghua University,1991(1). |
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| Authors: | Li Xingui Guan Guihe Sun Tong |
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| Institution: | Department of Chemical-fiber Techaology |
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| Abstract: | Copolycondensation mechanisms for the terpolyester system from m-methoxy-p- acetoxybenzoic acid,p-acetoxybenzoic acid and poly(ethylene terephthalate)are first investigated by high resolution proton NMR spectroscopy at 400 MHz.A series of reactivity ratios of the copolycondensation reactions are given.The results shown that the m-methoxy-p-acetoxybenzoic acid tends to homopolymerize,while the p-acetoxybenzoic acid,and the ethylene terephthalate unit especially,tend to copolymerize with the m-methoxy-p-acetoxybenzoic acid. |
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| Keywords: | copolymerization mechanism reactivity ratio nuclear magnetic resonance liguid crystal terpolymer diad sequence |
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