您要查找的是不是：
- Ethyl chloroformate reacted with both the hydroxy group and the carboxy group of the 17 position. 用氯甲酸乙酯将17位醇羟基和羧羟基同时酰化;
- Thus, the reaction of methanol with hydroxy group on the surface of zinc oxide surface was reversible. 因此甲醇在氧化锌表面吸附生成甲氧基和水的反应是可逆的。
- The toxicity of derivatives considered is far stronger, on account of methyl and hydroxy group substituted, than their mother (phenol) substance. 实验表明，羟基增加和甲基的取代，毒性均较母体大大增强。
- The resent work aims to investigate and develop series of monoazo dyes containing hydroxy group for the polyester/wool blend fabrics. 摘要本实验系利用自行合成之含羟基偶氮染料及微胶囊包覆分别对聚酯、羊毛及聚酯／羊毛混纺织物进行染色；
- Methods:The target compounds were synthesized from acylation of polyethylene glycol (PEG) to hydroxy group of ursolic acid by polymer polycondensation method. 方法:通过高分子缩合的方法,将酰化的聚乙二醇接枝到熊果酸的羟基上,得到目标产物。
- CaCO3 was treated with 3-aminopropyltriethoxysilane at first, followed by the condensation reaction with the hydroxy group of ACPA. The coupling and anchoring reactions are confirmed by infrared spectrum and element analysis. 碳酸钙粒子经氨基硅烷偶联剂处理后能与偶氮二氰基戊酸反应而实现锚固化,由红外光谱和元素分析证明了偶联和锚固反应。
- SnBu_4 could react with superficial hydroxy group of Pt/HY molecular sieve,to result selective and quantitative grafting of SnBu_3 fragments onto surface of molecular sieve supercages without deteriorating crystalline structure of the latter. 研究结果表明,SnBu4与Pt/HY分子筛表面羟基可以定量、有选择性地进行化学反应,将确定数目的SnBu3碎片接枝在分子筛的超笼中。
- The silicone molecules in the coatings can be adhered with the hydroxy group on the surface of substrate to form a network hydrophobic silicone film with excellent water proofness and durability. 涂料中的有机硅分子与基材表面的羟基紧密结合，形成网状疏水性硅氧烷膜，成为一种防水性、耐久性优的防水剂。
- Because of the strong interaction between the trimethychlorosilicane and surface hydroxy groups of mordenite, silylation is used to modify mordenite. 本文旨在通过硅烷化、脱铝改性丝光沸石，以提高丝光沸石疏水性能，为疏水沸石的开发利用提供一些基本数据和实验依据。
- Study on Hydroxy Group Protection of Lactic Acid 乳酸羟基保护的研究
- The acetyl derivative and the silicane derivative of hyperbranched aliphatic polyesters with terminal hydroxy group were prepared.The effect of terminal groups on the properties was studied. 对端羟基脂肪族超支化高分子的端基进行了乙酰化和硅烷化改性,研究了不同端基对超支化高分子的玻璃化温度,折光指数增量以及特性粘度的影响。
- The hapten iPA has been selected and conjugated,via its hydroxy groups of the ribose moiety,to free amino groups of bovine serum albumin(BSA) with NaIO4 oxidation and the immuogen iPA-N9-BSA has been synthesised. 用NaIO4氧化合成免疫原iPA－N9－BSA（BSA：牛血清白蛋白）。
- Keywords Lactic acid;Hydroxy group protection;Dihydropyran; 乳酸;羟基保护;二氢吡喃;
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- any of a class of alcohols having 2 hydroxy groups in each molecule 每个分子中含两个羟基的一类醇
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- I come upon a group of children play in the street. 我遇到一群孩子在街上玩耍。
