乙氧基

The comparison of hydrolysis-polycondensation reaction and microstructure of ORMOSILs derived by TEOS, MTES, VTES, ETES confirms that the influence of organic group such as methyl, vinyl, ethyl and ethoxyl on the hydrolysis and polycondensation reaction rate depends on several factors including electron-donating capability, size and number of ethoxyl group which can participates polycondensation reaction.

确认甲基、乙烯基和乙基和乙氧基等改性基团对硅醇盐水解-缩聚反应速度的影响是取决于有机改性基团的电负性、尺寸和可水解的-OR基团数目等因素综合作用的结果，其水解速度依MTES＞TEOS＞VTES＞ETES的顺序递减。由于Si原子上可聚合的基团数目减少，导致MTES、VTES和ETES的聚合反应速度降低，而与水解速率失配。

The effects of the food additive butylated hydroxyanisole and the antibiotic Norfloxacin on swordtail fish were measured by considering a number of parameters, including glutathione S\|transferase, catalase, 7-ethoxyresorufin-o-dealkylases and malondialdehyde contents.

研究了叔丁基对羟基茴香醚(butylated hydroxyanisole， BHA)和诺氟沙星(norfloxacin， NFLX)对剑尾鱼的急性毒性及其肝脏谷胱甘肽硫转移酶、丙二醛、过氧化氢酶及7-乙氧基异吩恶唑酮-脱乙基酶活性的影响。

N butyl 2 ethoxy thioacridone ; acridone ; electron transfer ; fluorescence

N-丁基-2-乙氧基硫代吖啶酮；吖啶酮；电子转移；荧光

The results showed that upon Xe lamp irradiation,N butyl 2 ethoxy thioacridone was transformed into corresponding acridone and the presence of the lattter was confirmed by UV visible absorbtion spectrum and mass spectrum.

结果表明：在Xe灯光照下，N 丁基 2 乙氧基硫代吖啶酮转变成了相应的吖啶酮，用紫外可见光谱和质谱证实了吖啶酮的存在；生成的吖啶酮可被二苯基碘盐猝灭，它们之间的荧光猝灭遵循电子转移的反应机理。

However, if the solution is also made in sodium ethoxide after the same treatment , the major product is found to be 4-t-butylcyclohexene.

然而，如果是在乙氧基钠中经过同样的处理则主要产物是4-t-丁基环己烯。

The main components were myristic acid (19.37%), palmitic acid methyl ester(7.56%), lascorbic acid 2,6dihexadecanoate(6.27%), 8,11octadecadienoicacid methyl ester(5.22%), heptadecane(4.82%), lauryl ethoxylate(2.98%), 2isopropyl5methyl1heptanol (2.62%), tetracosanoic acid methyl ester(2.12%),2ethyl2methyltridecanol (2.08%), et al.

其化学成分主要为肉豆蔻酸(19.37%)，棕榈酸甲酯(7.56%)，2，6十六烷基1抗坏血酸酯(6.27%)，8，11十八碳二烯酸甲酯（5.22%），十七烷（4.82%），十二烷基乙氧基醚（2.98%），2异丙基5甲基1庚醇(2.62%)，二十四烷酸甲酯（2.12%），2乙基2甲基十三醇（2.08%）等。

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。

A novel polyurethane dispersion with high gloss and excel le nt mechanical properties was prepared with polyether glycol and isophorone diiso cyanate as raw materials and castor oil and 3-aminopropyl-triethoxysilane as cross-linking agents.

探讨了胶膜光泽度与亲水基团及蓖麻油含量的关系，同时研究了氨丙基三乙氧基硅烷的加入对材料的机械性能和耐水性产生的影响。

In the alkalescence katalyst condition,the aminopolysiloxane emulsion was prepared by used the octamethylcyclotetrasiloxane(D_4) and silane coupling agent(KH-550) emulsion copolymerization.

在碱性催化剂作用下，采用八甲基环四硅氧烷(D4)与硅烷偶联剂γ-氨丙基三乙氧基硅烷(KH-550)乳液共聚制得了氨基聚硅氧烷乳液。

The synthesis of methyl mandelate catalyzed by dodetungstophosphoric acid supported on modified silica gel with 3-aminopropyltriethoxysilane (HPW/M-SiO2) has been studied.

γ-氨丙基三乙氧基硅烷修饰的硅胶负载磷钨酸(HPW/M-SiO2)催化剂催化合成扁桃酸甲酯。

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。

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。