V2EX dimethyl terephthalate

Dimethyl Terephthalate

释义 Definition

对苯二甲酸二甲酯(缩写 DMT):一种有机酯类化合物,常作为生产聚酯(尤其是PET)的重要原料或中间体;也用于某些树脂、涂料与增塑相关的化工应用。(在现代工业中,部分工艺已更多改用对苯二甲酸 PTA 直接制PET,但DMT仍具有历史与部分工艺价值。)

发音 Pronunciation (IPA)

/damθl trfθelt/

词源 Etymology

di- 表示“二、双”;methyl 指“甲基/甲基的(CH)”;terephthalate 来自 terephthalic acid(对苯二甲酸) 的盐/酯名称,其中 phthal- 与“邻苯二甲酸/苯二甲酸家族”相关,tere- 用来指代该酸的特定构型(对位、para 相关的体系命名传统)。整体字面意思就是“对苯二甲酸的二甲酯”。

例句 Examples

Dimethyl terephthalate is used to make polyester.
对苯二甲酸二甲酯用于生产聚酯。

In the transesterification step, dimethyl terephthalate reacts with ethylene glycol to form intermediates that olymerize into PET under controlled conditions.
在酯交换步骤中,对苯二甲酸二甲酯与乙二醇反应生成中间体,并在受控条件下进一步聚合形成PET。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Ullmann’s Encyclopedia of Industrial Chemistry(相关条目涉及DMT与聚酯工业路线)
  • Kirk-Othmer Encyclopedia of Chemical Technology(聚酯、酯交换与DMT工艺相关内容)
  • Polyesters: Synthesis and Characterization(聚酯合成路径中常提及DMT作为单体/原料)
  • Handbook of Polymer Science and Technology(PET与聚酯原料章节中出现DMT)
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