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- aprotic solvent method 非质子溶剂法
- The application of ultrasonic radiation and polar aprotic solvent in the synthesis of dialkyl thiourea with NH_2C(=S)NH_2 and RBr was studied in this paper for the first time. 本文首次报道了超声波辐射和极性非质子溶剂在硫脲与溴代烷反应合成二烃基硫脲中的应用。
- Polymer dispersed liquid crystal (PDLC) films were prepared by Solvent Method. 用溶剂法制备了聚合物分散液晶膜。
- Diisopropyl phosphite was directly synthesized from phosphorus trichoride and isopropanol by using the solvent method. 以三氯化磷与异丙醇为原料,用溶剂法合成了标题化合物。
- Sodium carboxymethyl cellulose(CMC)of low viscosity grade was synthesized by solvent method. 采用溶剂法合成了钻井液用低粘度羧甲基纤维素钠(CMC)。
- And it was shown that non solvent method was not suitable to synthesize the polybrominated aromatic amines. 实验还发现非溶剂法不适合于多溴代芳胺类化合物的合成。
- In aprotic solvents magnesium effects pinacol reductive coupling of aldehydes and ketones. 在非质子性溶剂，镁对频纳醇与醛和酮的还原耦合反应也有一定效果。
- Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support. 以无水三氯化铝为原料,并以处理过的膨润土为载体,采用液固溶剂法制备固体酸催化剂。
- The extraction techniques of pigment from grape(Vitis davidii Foex) peel by solvent method were studied on the basis of single factor. 对刺葡萄果皮色素的溶剂法提取工艺在单因素水平基础上进行了研究,并对提取所得色素的理化性质进行了测定。
- More than nine oligomers with chlorofomate and tere-But-PhOH end-groups in the PC synthesized by solvent method were identified. 发现由溶剂法合成的聚碳酸酯中含有以氯酸甲酯和对叔丁基苯酚为端基的低聚体。
- Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid-solid solvent method, with pretreated bentonite as support. 以无水三氯化铝为原料，并以处理过的膨润土为载体，采用液固溶剂法制备固体酸催化剂。
- The haematochrome in red pepper was extracted by solvent method,and it was improved by supersonic method to quicken extracting rate which is proved feasibility. 本文以辣椒中红色素为提取物,采用传统工艺的溶剂法作为提取手段,并对本方法的浸取过程进行改良,采用超声波方法加快浸取速度,证明了其可行性。
- The ocular implant loaded with dexamethasone was prepared by solvent method with the biodegradable polymer,polylactic-co-glycolic acid (PLGA) as carriers. 以生物可降解的乙交酯-丙交酯共聚物(PLGA)为载体,用溶剂法制备了地塞米松眼部植入剂。
- The polyphenols antioxidants are extracted by solvent method from the middle and low-grade tea,and how to improve the purity of product and lower costs are also discussed. 研究了以中、低档茶叶为原料，采用溶剂法提取多酚类抗氧化物质的工艺技术。并在工艺上进行了一定的改进，提高了产品的纯度，降低了成本。
- Keywords Cefuroxime Axetil;dipolar aprotic solvent;esterification reaction; 头孢呋新酯;偶极非质子性溶剂;酯化反应;
- Bis(polyglycol) maleate, which were obtained by solvent method, reacted with phthalic anhydride, then the double bond of maleic anhydride of polymer obtained with sodium hydrogen sulfite. 采用溶剂法制得马来酸双聚乙二醇酯,与邻苯二甲酸酐缩聚,用亚硫酸氢钠加成缩聚物中马来酸酐上的双键。
- The accurate results of determination can be obtained easily and quickly, when the samples were treated by solvent method, and the iron contents were determined by o-phenanthroline spectrophotography. 采用溶剂法处理样品和邻菲罗啉分光光度法测定铁含量可简便、快捷获得准确的结果。
- The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
- The progress of some norel techniques used in the synthesis of organic intermediates. Such as phase - tran-ster catalysis. Catalyst hydrogenation. Biochemistry and solvent method were reviewed. 介绍了近年来有机中间体的部分合成技术的进展,如相转移催化、催化加氢、生物化工、溶剂法反应及环境友好工艺等。
- Keywords N-methylaniline;Diphenylamine;Aprotic solvent;IR spectrum;Crossassociation; 芳胺;极性非质子溶剂;红外光谱;交叉缔合;
