二乙烯基
- 与 二乙烯基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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They were eucalyptol, bicyclo[2.2.1]heptan-2-one,1,7,7-trimethyl-,(1R)-, borneol, 1-methyl-2-(1-methyl ethenyl)-(1R-cis)-cyclobutaneethanol, limonene, 1-hydroxymethyl-7,7-dimethy lbicyclo[2.2.1]heptan-2-one,-spathulenol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, isocitronellol,-9-Octadecenoic acid, heneicosane, respectively.
阿给中共有11个阿给炭没有检测出的成分,包括桉油精、D-樟脑、冰片、(1R-cis)- 1-甲基-2-(1-甲基乙烯基)环丁基乙醇、二戊烯、1-羟甲基-7,7-二甲基-双环[2.2.1]庚-2-酮、-匙叶桉油烯醇、3,7,11,15-四甲基-2-十六碳烯-1-醇、异香茅醇、-9-十八碳烯酸和廿一烷。
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The chiral polymer P-1 shows strong blue fluorescence due to the extended π-electronic structure between the chiral repeating unit-6,6'-di(4-trifluoromethyl-phenyl)-2,2'-bisoctoxy-1,1'-binaphthyl and the conjugated linker 2,2'-bipyridyl group via vinylene bridge.
手性高分子P-1能发射强的蓝色荧光,这是由于手性重复单元-6,6′-二(4-三氟甲基苯基)-2,2′-二正辛氧基-1,1′-联萘和单元2,2′-联吡啶通过亚乙烯基桥连形成共轭高分子结构造成的。
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This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.
本论文主要研究了亚甲基环丙烷类化合物的一些化学反应性能,共由以下六部分组成:1、亚甲基环丙烷类化合物与苯硫氯、苯硒氯及二苯基二硒的反应;2、亚甲基环丙烷类化合物开环产物的偶联反应;3、单芳基取代的亚甲基环丙烷类化合物在钯催化剂作用下的扩环反应;4、金化合物催化磺酰胺对亚甲基环丙烷类化合物的串联开环关环氨氢化反应;5、路易斯酸催化亚甲基环丙烷类化合物与丙酮二羧酸二乙酯在有水存在下的反应;6、醋酸碘苯促进的亚甲基环丙烷类化合物、亚乙烯基环丙烷类化合物及亚甲基环丁烷类化合物与邻苯二甲酰肼的新型1,3-偶极环加成反应。
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The invention relates to a mixed additive used in lithium secondary battery electrolyte, which is characterized in that: its components comprises that biphenyl at 0.5-95.4%, phenylcyclohexyl at 1.1-93.8%, vinylene carbonate at 0.4-93.2%, tertiary carbon alkyl benzene at 0.5-96.5%; and ethenyl sulfonyl benzene at
本发明公开了一种锂离子二次电池电解液用混合添加剂,其特征在于:组分与重量%分别是:联苯类0.5%~95.4%;环己基苯类1.1%~93.8%;碳酸亚乙烯酯0.4%~93.2%;叔碳烷基苯0.5%~96.5%;乙烯基硫酰苯0.5%~95.8%。
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A new functional electroluminescent copolymer is reported in which chromophores and hexa segments alternate along the polymer backbone.
采用Wittig反应合成了一种分子主链由烷氧基取代的1,4二苯乙烯基苯聚对亚苯基亚乙烯基(PPV的三个单元的齐聚物与柔性隔离链段五缩六乙二醇组成的交替型蓝绿色发光共聚物。
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A second group includes those compositions, which include an organic polymeric binding material, eg, mixed cellulose esters of monobasic or dibasic acids such as cellulose acetate succinate; an addition-polymerizable ethylenically unsaturated compound, eg, vinylidene and vinyl monomers, preferably of the acrylic or alkacrylic ester type; eg, triethylene glycol diacrylate; and an addition-polymerization initiator which forms radicals under the influence of actinic radiation, eg, anthraquinone.
第二组包括那些作品,其中包括有机聚合物具有约束力的物质,例如,对一元或二元酸混合纤维素酯,如醋酸纤维素琥珀酸; 1此外,聚合ethylenically不饱和化合物,例如,偏和乙烯基单体,丙烯酸最好的或alkacrylic酯类型,如,三乙二醇二丙烯酸酯;和加成聚合引发剂的形式下光化辐射的影响自由基,例如,蒽醌。
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Poly(p-vinylbenzyl succinimide) resin,which can be abbreviated to succinimide resin,was prepared by the reaction of chloromethylated polystyrene with succinimide in the presence of base. The succinimide resin was characterized by diffuse reflectance infrared Fourier transform spectrometry and elemental analysis.
摘 要:在碱性条件下,氯甲基化聚苯乙烯与丁二酰亚胺反应合成了聚(对乙烯基苄基丁二酰亚胺)树脂,采用元素分析、红外光谱对合成树脂的组成进行了表征。
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In chapter four, molecular imprinting polymers against amino acid derivatives utilizing 2-VP+AM as combined functional monomer and trimethylolpropane trimethacrylate as tribasic cross-linker were prepared and result was compared with those with the same amino acid derivative as the imprinted molecules utilizing ethyleneglycol dimethacrylate as dibasic cross-linker. It was found that cross-link intensity of the molecular imprinting polymer is higher when TRIM was utilized and baseline separation for the imprinted molecule could be achieved. When TRIM was utilized as cross-linker more molecule is imprinted during the polymerization.
第四章采用2-乙烯基吡啶+丙烯酰胺复合功能单体,考察了三元交联剂三甲氧基丙烷三甲基丙烯酸酯烙印氨基酸衍生物的情况,并与二元交联剂乙二醇二甲基丙烯酸酯烙印相同氨基酸衍生物的情况进行了对比,发现三甲氧基丙烷三甲基丙烯酸酯交联剂在较小的用量下就可使分子烙印聚合物达到足够的交联度,实现烙印分子的基线分离。
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To improve the effect of CDCA on dissolving cholesterol gallstone, the water-soluble copolymers as polycarboxylic acid of comb-like copolymers and C_(60)-PCC were synthesized, which being used for modification of CDCA and strengthening effects of CDCA on dissolving the cholesterol gallstones by their entropy-repelled properties of comb-shaped side chains in buffers of phosphate and in model bile.The design theory of polymer was mainly employed to synthesis the conjugate of PCC-CDCA and C_(60)-PCC-CDCA by C_(60), polyoxyalkylene allylalkyldiether and maleic anhydride, which were copolymerized with AIBN as initiator, and then PCC or C_(60)-PCC were reacted with CDCA. The structures of the copolymers and the conjugates of PCC-CDCA and C_(60)-PCC-CDCA were confirmed with IR, TLC and TEM. The dissolving effects and the dissolution kinetics mechanism of cholesterol gallstone was inverstigated in PBS and in model bile of different cholesterol saturated index at pH7.4, including PCC-CDCA or C_(60)-PCC-CDCA.
利用高分子设计理论,以烯丙基聚氧乙烯基醚、顺丁烯二酸酐、C_(60)和CDCA为原料,以偶氮二异丁腈为引发剂,合成具有梳状侧链结构的梳状共聚物-CDCA结合物和C_(60)-梳状共聚物-CDCA结合物,以IR、TLC和TEM法表征共聚物的结构,并在pH7.4的PBS液和不同胆固醇饱和指数的模拟胆汁中进行溶石效果的研究,探讨在PBS液和不同CSI的模拟胆汁中结合物溶解胆固醇结石的效果和溶解动力学机制。
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In this dissertation, preparation of polysubstituted ethene and heterocyclic compounds based on 2-hydroxyalkyl phenyl selenides andα-phenylselenopropionic acid reagents were further investigated as follow: Firstly, O-ethyl-O-vinyl phosphonates were prepared in a one-pot, two-step transformation by Mitsunobu reaction of 2-hydroxyalkyl phenyl selenides with monoethyl esters of phosphonic acid in the presence of diethyl azodicarboxylate and triphenyl phosphine (PPh3) followed by oxidation-eliminatio...
中文摘要:本文主要进一步探索了2-羟基烷基苯基硒醚、α-苯硒基丙酸试剂在制备多取代乙烯和杂环化合物反应中的应用,具体研究内容和结果如下:一、在偶氮二羧酸乙酯和三苯膦(PPh3)存在下,苯基-2-羟基烷基硒醚和O-乙基膦酸单酯发生Mitsunobu反应,无需分离和纯化反应中间体,直接使用30 %的双氧水进行氧化-消除反应,提供了&两步、一锅&合成O-乙基-O-乙烯基膦酸酯的新方法,该方法反应条件温和,操作简便,产物收率良好(76-82 %)。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。