苯并
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The thesis designs the OFET based anthacene from materials characteristic, technics flow, device structure and materials selecting. It researches the technics and characteristic of anthacene film by scan electronic microscope、atom force microscope、X ray diffraction、photomicroscope, et al.
从材料特性,工艺流程设计、器件结构设计、材料选取等方面,设计制备了基于并三苯的有机场效应晶体管,采用扫描电子显微镜、原子力显微镜、X射线衍射分析仪、光学显微照相等手段研究了并三苯材料应用于OFET中各种成膜工艺及特性。
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Furthermore, through molecular structural design, we have also synthesized stable dual functional diphenylether polymer intermediates of ABB' types possessing ortho-dicarboxylic at one aromatic ring and diamine groups at another beginning from Xylenol and 1-Chloro-3,4-dinitrobenzene as the raw materials.
中文摘要本研究应用自氧化法与氢化法两反应,成功而有劾地制备出芳香族含酸酐及二胺基之官能基单体,并进一步经由分子结构设计,从3,4-二甲苯酚及1-氯-3,4-二硝基苯为原料,转化合成出安定性高带有羧基与双胺基双官能基之堑新ABB'型二苯醚中间体,并成功地应用此中间体从事自聚合反应,而合成分歧状聚醚亚醯胺高分子。
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The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.
研究自制的SE-30系列毛细管气相色谱柱的载气最佳线速度,并应用于同分异构体的色谱分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色谱柱的柱效进行考察,并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。
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The environmental impact during production, usage and residual period of arsanilic acid was assessed in viewpoint of life cycle.
本文介绍了最常用的有机胂制剂-对氨基苯胂酸的主要用途和污染特征,从生命周期的角度识别并定量评价了其生产、使用和残留过程的环境影响,评价结果表明对氨基苯胂酸在土壤中最终残留的环境影响占其整个生命周期的99%以上,指出了常规环境影响评价在评价其环境污染上的局限性,据此提出逐步减少或禁止有机肺制剂的生产和使用、并在一些特殊的建设项目环境影响评价中推广生命周期评价的建议。
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The study is to synthesize dual-site phase-transfer catalyst, and use it to form tri-liquid phases, and investigate the catalytic benzoylation of 4'-hydroxyacetophenone sodium salt and benzoyl chloride to produce 4-acetylphenyl benzoate in ultrasound-assisted tri-liquid-phase system.
中文摘要本研究在合成双活性基相间转移触媒,并使用该触媒合成三液相系统,并辅以超音波在三液相系统中催化4-乙醯基酚化钠与氯化苯甲醯形成苯甲酸4-乙醯基苯酯的反应。
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The enzyme amplified lanthanide luminescent spectrometry of horseradish peroxidase was developed and applied to the analyse of HRP and tuberculosis. The deconvolution curve method was used for synchronous fluorimetric determination of two component systems of highly overlapped spectra, such as phenol and p-dihydroxybenzene, phenol and o-dihydroxybenzene, and tyrosine and tryptophan. A novel mathematical method, combining Gorry's deconvolution method, was presented to remedy data loosing of SavitzkyGolay's deconvolution method and applied to dealing with fluorescent signal.
建立了辣根过氧化物酶的酶联放大镧系发光法,并应用于结核抗体的测定;成功地应用褶合曲线分析法并进行了改进,结合同步荧光光谱法用于苯酚/对苯二酚、苯酚/邻苯二酚和酪氨酸/色氨酸等光谱重叠较严重的双组份体系的同时测定;结合Gorry提出的卷积法,提出一种解决Savitzky-Golay卷积法中两端信息丢失问题的快捷方法。
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Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4~15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.
本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究,并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究,从中分离得到19个化合物,利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物,分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外,其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷,并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力,其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型,在体外观察类叶升麻苷的保肝作用。
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The logarithm difference values of partition coefficients of the compounds in butyl ether/water and in cyclohexane/water system were used for the measurement of the Lewis acidity, while the logarithm difference values of partition coefficients in trichloromethane/water and in tetrachloromethane/water system were used for the measurement of the Lewis basicity, and they were used successfully to differentiate the relative strength of Lewis acidity and basicity for 59 benzene and its derivates.
以化合物在正丁醚/水和环己烷/水溶剂体系中分配系数的对数差作为酸性指数,以其在氯仿/水和四氯化碳/水溶剂体系分配系数的对数差作为碱性指数,提出了一种新的度量有机物Lewis酸碱性的方法,按此方法成功地区分了59种苯系物Lewis酸碱性的相对强弱;并成功地将上述酸碱性指数引入定量结构—性质/活性相关研究之中,探讨了苯系物的正辛醇/水分配系数、水溶解度和土壤有机碳吸附系数等常见理化性质与其Lewis酸碱性间的相关性并建立了相应的定量模型,发现它们之间存在良好的相关性。
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The molecule was observed to adopt lying-down mode rather than the upright-standing mode at monolayer regime if the molecules were deposited by keeping the substrate at room temperature.
实验和理论研究结果表明:并四苯分子在四度对称的Cu(100)表面上,在室温下,单层条件下的并四苯分子也是平面吸附结构,而不是以前认为的直立吸附模式。
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The effects of content of PAS in the composite on volume resistivity and surface resistivity were discussed in detail.
实验结果表明,所制备复合材料的渗流转变发生在纳米聚并苯质量分数为16.7%-28.6%范围内,当纳米聚并苯含量为28.6%时,体积电阻率下降至2.09×107 Ω·cm。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。