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- diphenyl ether compound 二苯醚类化舍物
- Diphenyl ether is used as solvent and azeotropied with water. 利用联苯醚作为溶剂,与体系的水分进行共沸回流,达到充分脱水的目的。
- Purification of diphenyl ether by crystallization without solvent is discussed. 用无溶剂结晶法纯制二苯醚,该方法具有高效、经济和洁净的特点。
- The paper describes the synthesis of modified diphenyl ether resin and preparation of GRP laminates. 本文介绍了一种改性二苯醚树脂的合成及其玻璃布层压板的制备方法,并对其性能进行了全面测试。
- The paper reviewed the synthesis and production of the surfactant -dodecyl diphenyl ether sodium disulfonate. 介绍了十二烷基二苯醚二磺酸钠的合成及生产情况。
- The reaction of benzene alkylation with long chain olefin and diphenyl ether (DPE) alkylation with olefin are two important industrial reactions. 苯与长链烯烃烷基化反应制得的直链烷基苯、二苯醚与烯烃烷基化反应生成的烷基二苯醚是两类重要的工业反应中间体,它们经进一步的磺化、中和过程生产的烷基苯磺酸盐和烷基二苯醚磺酸盐是优良的阴离子表面活性剂,是现代合成洗涤剂工业产品中的主要成分。
- Besides, the synthesis of diphenyl ether, diphenyl oxadiazole, diphenyl amine and aza-bis(oxazolines) is also discussed. 另外,还讨论了苯甲醚类、二联苯恶二唑类、联苯胺类与氮杂类等新型双恶唑啉配体的合成。
- A method for simultaneous determination of residues of 9 diphenyl ether herbicides in cereals and oilseeds by GC-MS was presented. 利用气质联用(GC-MS)技术建立了粮谷与油籽中9种二苯醚除草剂多残留同时检测的方法。
- Animal experiment shows that the coumar ether compound extracted from feverfew can treating bronchial asthma, bronchitis and emphysema effectively. 动物实验证明,这类从菊科植物中提取的香豆草醚类化合物可有效治疗和改善支气管哮喘、慢性支气管炎、肺气肿的症状。
- Through the property test, the result shows that the laminates with the diphenyl ether modified by benzoxazine are better than that by phenol. 实验结果表明,采用苯并口恶嗪改性二苯醚树脂制备的玻璃布层压板,其工艺性优于苯酚改性二苯醚树脂,且成本较低。
- In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound. 对于硫醯亚胺与矽基酮的自由基反应,则是得到低产率的简单环化产物,而不是预期的烯醇矽醚化合物。
- Polybrominated Diphenyl Ether. 六种物质.
- The reformulated gasoline must contain less volatile organic compounds and a higher amount of oxygen (in the form of alcohol or an ether compound). 改良过的汽油必须含有较少的挥发性有机化合物,而又含有较高量的氧(以酒精或乙醇的形式)。
- In the reaction of diphenyl ether alkylation with 1-dodecene, reaction conditions: DPE : 1-dodecene = 5, 343K, normal pressure, the conversion was above 67% and the selectivity of mono-alkyl diphenyl ether was 100%after 2 hours. 在催化二苯醚与1一十三烯的烷基化反应实验中,最佳操作条件 为常压下323K反应2小时,反应转化率达到84%25以上,单取代产物选择性
- This thesis includes two sections:the synthesis of unnatural aromatic amino acids and the synthesis and physics properties of amido diphenyl ether disulfonates Gemini surfactant:1. 本论文包括两个部分:非天然氨基酸的合成与表征和双子表面活性剂的合成与性质研究。
- In the imaging field,polyphenol 1-ethoxyl ethyl ether compounds,as dissolution inhibitors,can be applied to the thermo-sensitive CTP composition s. 在成像领域中,可应用多酚乙烯基醚类化合物作为阻溶促溶剂,应用于热敏CTP感热成像配方。
- Synthesis of Open Chaining Crown Ether Compound 开链冠醚衍生物的合成
- The classifications,synthesis,and application of the open chain azacrown ether compounds and their analogues have been reviewed in this paper. 从分类、合成及应用等方面概述了近年来氮杂冠醚及其类似物的研究进展。
- These Regulations shall not apply to the applications of lead, mercury, cadmium, hexavalent chromium and polybrominated diphenyl ethers listed in Schedule 2. 2006年7月1日前投放市场的电气电子设备的维修备件或再使用,这些规定不适用;
- Polybrominated diphenyl ethers (PBDEs) as flame retardants in polymeric materials for fire safety of home products are new global environmental pollutants. 摘要多溴联苯醚(PBDEs)作为阻燃剂广泛用于家庭消费品中,是正在受到全球关注的新环境污染物。