| 4.4DDS的研制 |
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| 引用本文： | 汪玉彬. 4.4DDS的研制[J]. 佳木斯大学学报, 1988, 0(4) |
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| 作者姓名： | 汪玉彬 |
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| 作者单位： | 佳木斯工学院基础部 |
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| 摘 要： | 本文首先从分析4.4DDS 结构出发,肯定了其性能、应用领域和重要性.其次是以实验为基础,利用缩聚反应,磺化碱溶二步分离法和脱色、重结晶手段来研制4.4DDS,原理清楚可行.最后用实验数据:4.4DDS146克、收率55%、熔点244——245℃,说明产品数量、质量已达聚合级指示.
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| 关 键 词： | 苯酚 缩聚反应 磺化 4.4——二羟基二苯砜 聚醚砜 |
The Develop of 4.4 D D S |
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| Wang Yubin. The Develop of 4.4 D D S[J]. Journal of Jiamusi University(Natural Science Edition), 1988, 0(4) |
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| Authors: | Wang Yubin |
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| Abstract: | This essay,first,proceeds from the analyse of 4.4.D.D.S structure,makes sure of its property,field of application and its importance.Secondly,based on the experiment,develops 4.4.D.D.S by using the Condensation Reaction,Sulponation-soda-melt-two-step -separate-method and Decolouring-recrystall-ization.Fundamentals are clear and practicable.Finally,using experimental data:4.4.D. D.S of 146 grammes,producing rate of 55 percent,melting point of 244-245 centigrade degrees,comes to the conclusion that both quantity and quality of the products have been up to the polymerization standard. |
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