异丙基
- 与 异丙基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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2-Substituted-3,4-dihydro-1(2H)-isoquinolinones were synthesized from methyl 3-hydroxy-ben- zoates via allyl etherification, Claisen rearrangement, oxidation, reductive amination and aminolysis for the first time.
以3-羟基-4-甲氧基苯甲酸甲酯等为原料,通过烯丙基醚化、Claisen重排、氧化、与伯胺反应、还原、分子内酯的胺解六步反应合成了一系列2-取代-3,4-二氢-1-异喹啉酮类化合物。
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The separation of optical isomers of 2, 2'-dihydroxy-1, 1'-binaphthyl and 2, 2'-diamino-1, 1'-binaphthyl was studied by reversed-phase high performance liquid chromatography on a chiral stationary phase consisting of-hydroxypropyl-β-cyclodextrin (Cyclobond Ⅰ 2000 SP)using methanol/water as the mobile phase. The effects of mobile phase ratio, flow rate and column temperature on separation of optical isomers of DHBN and DABN were investigated.
在S-羟丙基-β-环糊精手性柱(CyclobondⅠ2000 SP)上用反相高效液相色谱法研究了2,2'-二氨基-1,1'-联萘和2,2'-二羟基-1,1'-联萘光学异构体的分离,考察了流动相组成、流速以及柱温等对联二萘胺和联二萘酚光学异构体分离的影响。
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The controlled/living radical polymerization of methacrylates containing carbazolyl or 1,3,4-oxadiazolyl groups via RAFT polymerization was successfully demonstrated. Functional polymers poly, poly, poly, and poly with hole- or electron-transfer ability were synthesized with cumyl dithiobenzoate as a chain transfer agent and AIBN as an initiator in a benzene solution.
以合成的二硫代苯甲酸酯异丙苯酯为链转移剂、偶氮二异丁腈为引发剂,通过RAFT可控/活性自由基聚合方法成功地合成了侧链上悬垂空穴传输基团或电子传输基团(1,3,4-噁二唑基团)的光电功能聚合物:poly、poly和poly、poly。
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The leftover from bamboo processing was comminuted into bamboo fine powder, which was surface-treaded with a coupling agent of ethenyl tri (β-methoxyethoxy) silane; and then in the presence of initiator dicumyl peroxide, the powder was compounded with styrene-isoprene block copolymer/bromobutyl rubber blend to prepare a crosslinked vibration-absorbing rubber composite material.
将竹加工的边角料粉碎并用乙烯基三硅烷偶联剂处理,再与苯乙烯-异戊二烯嵌段共聚物和溴化丁基橡胶的共混物进行复合,在过氧化二异丙苯引发剂的作用下制得交联型橡胶吸振复合材料。
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Lignin based polyurethane films were prepared by solution casting from hydroxypropyl lignin derivatives and hexamethylene diisocyanate or toluene diisocyanate.
以羟丙基化木素和甲苯二异氰酸酯或六亚甲基二异氰酸酯为原料,采用溶液流延法制备了聚氨酯。
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The method includes steps:(1) dropping triethoxy - 3 - propyl silicane isocyanic acid to ethanol solution of pH sensitive reagent to obtain reaction fluid A;(2) mixing siloxane, acid, and water to obtain reaction fluid B;(3) mixing reaction fluid A, reaction fluid B and solution of calcium chloride according to proportion to obtain solution C;(4) coating solution C on micropore base of micropore plate, using sealing tape to seal micropores, and using needle to perforate each micropore at center, and protecting from light; after placing it a period of time, the method adds distilled water to micropores, keeping the back up.
本发明公开了一种微孔板pH传感器的原位制备方法,其步骤是首先将三乙氧基-3-异氰酸丙基硅烷滴入pH敏感试剂的乙醇溶液中,得反应液A;其次是将硅氧烷、酸和水混合,得反应液B;第三是取反应液A、反应液B及氯化钙溶液,按比例混合,得溶液C;第四是取溶液C涂于微孔板的微孔底部,用密封带将微孔封住,并用针在每个微孔中央刺孔,避光保存。
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A reversed-phase high performance liquid chromatographic method was established for determination of isothiocyanates in human urine , which used the reaction of propyl isothiocyanate with 1,2-benzenedithiol as reference instead of the synthesis of 1,3-benzodithiole-2-thione.
省去合成1,3 苯二硫杂环五烯 2 硫酮这一步骤,直接用异硫氰酸丙基酯与1,2 苯二硫酚反应作标准,建立了尿液中异硫氰酸酯的反相高效液相色谱测定方法。
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Study on the Effect of Azone on Percutaneous Absorption of Clindamycin Hydrochloride in Cream;2. OBJECTIVE To observe the effects of three transdermal enhancers( azone ,isopropyl myristate,oleic acid) in vitro under the condition of iontophoresis with diclofenac sodium as the model drug.
方法选择聚乙烯醇、聚乙烯吡咯烷酮、羟丙甲基纤维素为基质,制备了分别含有月桂氮酮、肉豆蔻酸异丙酯和油酸的双氯芬酸钠经皮离子导入凝胶,采用改良Franz纵向释放池,以人体皮肤为透皮屏障,进行药物凝胶的离子导入经皮试验。
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The main results and conclusions are as following:(1) By using the femtosecond time-resolved fluorescence up-conversion technique, we studied the ultrafast excited state photoisomerization process of 33TC dye molecule.
主要内容和结论如下:(1)利用飞秒时间分辨荧光上转换技术对3,3'-磺酸基丙基噻腈三乙胺盐(33TC)的超快激发态光异构过程进行了研究。
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Oil in the redeployment of high-octane fuel components, blending the best choice programs, such as redeployment isooctane, cumene, alkyl benzene, methyl tert-butyl ether, alcohol burning Materials.
在油品中调入高辛烷值燃料的组分,选择最佳调合方案,如调入异辛烷、异丙苯、烷基苯、甲基叔丁基醚、醇类燃料等。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。