diol

n.  二醇

化学



双语例句

  1. The water-borne polyurethane was based on polyester diol, and toluene diisocyanate etc.
    以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了水性聚氨酯乳液。
  2. Synthesis and Study of Polydimethylsiloxane with a Diol End Group
    单端双羟烃基聚二甲基硅氧烷的合成及研究烷基多苷磺基琥珀酸单酯二铵盐的合成研究
  3. In the experiment, di-isocyanate, polyether diol and a hydrophilic chain-extender were used to synthesize aqueous urethane.
    实验采用二异氰酸酯与聚醚二元醇、亲水扩链剂反应合成水性聚氨酯。
  4. Synthesis, Characterization and Property of Hydroxypropyl Methylcellulose Grafting Polycaprolactone Diol
    羟丙基甲基纤维素接枝聚己内酯二醇的合成、表征及性能
  5. The effects of diol content on the dynamic mechanical properties and impact strength of the blends were investigated.
    系统地研究了二元醇含量对共混材料动态力学性能、冲击性能的关系。
  6. Influence of Activity of Terminal OH Group of Polyester Diol on Mechanical Properties of Polyester-Based WPU
    聚酯二醇端羟基活性对聚酯型水性聚氨酯力学性能的影响
  7. According to the theory that similarities can be solvable easily in each other, nonpolar ethyl diol dimethyl ether is used to extract nonpolar compounds in ginkgo biloba leaves.
    根据银杏叶内不同有效成分极性不一样和相似相溶原理,选用乙二醇二甲醚这一非极性溶剂提取银杏叶中非极性成分。
  8. Polyether diol mainly adopts polytetramethylene ether glycol ( PTMEG).
    聚醚二醇主要采用聚四氢呋喃醚二醇(PTMEG)。
  9. The moisture cured polyurethane was synthesized with mixing polyether diol, toluene diisocyanate ( TDI) as main raw materials, epoxy resin and hydroxy acrylic resin as modifiers.
    以混合聚醚多元醇、甲苯二异氰酸酯为主要原料,环氧树脂、羟基丙烯酸树脂为改性剂合成了湿固化聚氨酯涂饰剂。
  10. Stationary phase is a POLAR material such as silica, cyano, amino, diol, etc.
    HILIC的固定相主要是极性物质,比如二氧化硅、氰基、氨基、二醇等。
  11. The synthesis of tetrahydrofuran copolymerized GAP binder includes two steps: THF and ECH ( epichlorohydrin) are copolymerized with the help of catalyst ( BF3 ·+ diol) through cation ring opening copolymerization to hydroxyl terminated THF-ECH copolyethers;
    四氢呋喃共聚型GAP粘合剂的合成分两个步骤:a.通过四氢呋喃(THF)和环氧氯丙烷(ECH)在BF3·加二元醇催化下的阳离子开环聚合反应合成端羟基THF-ECH共聚醚;
  12. The diol chain-extension agent is an important factor influencing the physical performance of TPU.
    二醇扩链剂是影响TPU物理性能的一个重要因素。
  13. The waterborne polyurethane-nano TiO_2 compound emulsion was prepared by the reaction of tetrabutyltitanate ( TET) with polyester diol, dimethylol propionic acid ( DMPA), isophorone diisocyanate ( IPDI) based on the principle of sol-gel process.
    根据溶胶-凝胶原理,采用聚酯二元醇、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)、钛酸四丁酯(TET)制备了水性聚氨酯-纳米TiO2复合乳液。
  14. The preparation of macroporous silica matrices of different pore diameter, the synthesis of diol and amine stationary phase and their chromatographic characteristics in the separation of proteins are introduced.
    介绍了不同孔径的大孔硅胶基质的制备,二醇基和氨基固定相的合成,及其蛋白质的分离特性。
  15. Synthesis, properties and biomedical application of segmented polyether urethane extended with diol
    二元醇扩链嵌段聚醚氨酯的合成、性能及医学应用
  16. Application of chiral diol ligand derived from D-Mannitol in asymmetric epoxidation reaction
    D-甘露醇衍生的新型手性配体的合成及其在不对称催化环氧化反应中的应用
  17. The advances of internal donors in Ziegler-Natta catalyst system were introduced in this paper, at the same time catalysts were analysed with the internal donor components such as monoester, diester, diketone and diol ester.
    对丙烯聚合Ziegler-Natta催化剂中内给电子体的研究进展情况进行了综述,同时分析了单酯类、双酯类、二醚类、二酮类和二醇酯类化合物作为内给电子体的催化剂特性。
  18. As for polyether PUA, a new hydrophilic diol ( T-M) was synthesized from trimethylol propane and maleic anhydride.
    在聚醚型PUA中以三羟甲基丙烷和马来酸酐为原料,合成了一种新的亲水二元醇(T-M)。
  19. The reaction between polyether diol and TDI, polyether triol and NCO terminated prepolymer were of second order;
    实验表明,(1)聚醚二元醇与TDI、聚醚三元醇与端NCO预聚体的反应同为二级反应。
  20. Factors having effects on the synthesis of PUA, including structure of diol, content of DMPA, reaction temperature, were discussed. The effects of reaction time and temperature on the synthesis of B-EA were also studied. Better synthetic conditions were achieved.
    本文分别研究了醇的结构、DMPA的含量、反应温度等对PUA合成的影响以及反应时间、反应温度对B-EA树脂合成的影响,并找到了较佳的合成条件。
  21. Tests of fundamental properties for the above two resins showed that different neutralizer and neutralizing extent, content of carboxy group, ratio of functional group, structure of diol and molecular weights of diol are factors having effects on water-solubility of resin;
    对上述两种类型水性树脂的基本性能的测试表明:在水溶性能上,不同的中和剂及中和程度、羧基含量、官能团比例、二元醇结构、二元醇分子量等因素均影响水溶性能;
  22. Study on Condensation Reaction of 2-Butene-1,4-diol and Iso-Butyric Aldehyde
    异丁醛与1,4-丁烯二醇缩合反应的研究
  23. The condensation compound was synthesized by 2 butene 1,4 diol and iso butyric aldehyde, and was characterized by elemental analysis and IR.
    将异丁醛与1,4丁烯二醇缩合得到产物二氧七环,对产物进行了元素分析和IR分析。
  24. Determination of 3-Chloropropane-1,2 diol in Soy Sauce by GC-MS-SIM
    用GC-MS-SIM法测定酱油中的3-氯-1,2丙二醇
  25. A series of high hardness polyurethane elastomers based on polyoxypropylene polyol, diol chain-extender and polyisocyanate were prepared by one-step process.
    采用聚氧化丙烯多元醇、二醇扩链剂和多异氰酸酯为原料,用一步法工艺制得一系列高硬度聚氨酯弹性体。
  26. The result indicated that, the residual double bond of vicinal diol occur allylic oxidation; on the other hand, the corresponding ether, ester of vicinal diol can not be oxidized cleavage.
    研究结果表明:邻二醇物料中残余双键会发生烯丙位的氧化;另一方面,与邻二醇相对应的醚、酯不能被氧化裂解。
  27. Vicinal diol can be effectively translated into azelaic acid and the corresponding dicarboxylic acid monomethyl ester.
    邻二醇可以有效地转化为壬酸和相应的二元酸单甲酯。
  28. Structures of monomers, dimers and trimers were studied by density functional theory ( DFT). The effect of HO ( C) 3OH structure on diol self-association was summarized.
    通过密度泛函理论模型计算研究了单体、二聚体和三聚体的结构,总结了HO(C)3OH结构对二元醇分子自聚集的影响规律。

英英释义

noun

  1. any of a class of alcohols having 2 hydroxyl groups in each molecule

      Synonym:    glycoldihydric alcohol