锂

A novel macromonomer,polystyrene capped with thienyl group,which can undergos oxidation coupling polymerization,has been synthesized by anionic polymerization of styrene with butyl lithium as the initiator and 3-bromo-thiophene as the terminator.

以丁基锂为引发剂、四氢呋喃为溶剂，在氮气气氛和-78℃下进行苯乙烯阴离子聚合，并加入 3-溴噻吩作为终止剂，从而合成出末端含噻吩基的聚苯乙烯，它可以进行氧化偶联聚合，是一类新的大分子单体。

The invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester.

本发明涉及一种制备聚酯的方法，尤其涉及采用钛氧基乙二酸锂作为此类反应的催化剂以加快反应，并使所得聚酯具有优良的色泽性能。

The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate.

本发明提供了一种由制备聚酯用反应物的缩聚反应制备聚酯的改进方法，其中的改进包括使用钛氧基乙二酸锂作为缩聚反应催化剂。

First, the geometry optimization for 1-phenyldibenzophosphole and triphenylphosphine were carried out using quantum chemical AM1 method.

用量子化学AM1方法优化了1-苯基二苯并膦和三苯基膦的几何构型，比较了两种化合物的电子结构和空间结构，发现PDBP作为羰基合成铑膦催化剂的配体要优于三苯基膦；系统研究了PDBP的合成方法，其最佳合成条件为：在无水无氧的条件下，采用二乙胺锂与溴化四苯基膦摩尔比为3，反应温度为22 ℃，反应5 h，反应后酸化， pH值为1～2，产物收率可达到85％～88％。

Aim To study the structure of energy level, electronic cooperation and the Auger width of Li like system O +5 s triply excited state.

目的研究类锂O+5的三激发态能级结构、电子间的关联效应以及自离化宽度。

The method comprises the following steps of: preparing and scraping polymer casting solution on the surface of clutch gold; conducting humidification treatment on the polymer casting solution by a humidifier or conducting phase inversion in non-solvent until phase inversion occurs in the polymer casting solution and micro porous membrane is formed; making use of the electrodeposition technology to allow tin or tutania to deposit on the surface of the clutch gold; conducting thermal treatment on the clutch gold with the protection of idle gas to obtain a Li-ion battery composite cathode electrode tab.

该方法包括如下步骤：配制聚合物铸膜液，并将聚合物铸膜液刮涂在铜箔表面；利用加湿器对铜箔上的聚合物铸膜液进行加湿处理，或在非溶剂中进行聚合物的相转化，直到聚合物铸膜液发生相转移形成微孔膜；通过电沉积工艺，使锡或锡合金通过微孔膜膜孔沉积在铜箔表面；铜箔在惰性气体的保护下进行热处理，得到锂离子电池复合物负极电极片。

The invention provides a process for recovery of lithium and other metals and salts from brines, by using a series of evaporation tanks to control the evaporation of the brines of this metal, with unnecessity of rigid chemical reaction, so as to product a liquid easily and economically extrcted by metals and salts.

本发明提供一种从含盐天然水中回收金属和盐如锂的方法，通过使用一系列蒸发池以控制含这类金属的盐水的蒸发而无须强烈的化学反应以生产一种金属和盐能更容易和经济地提取出来的流体。

Behavior observation of the SE naive rats induced by li-pilo Without any convulsion expression in the control group of normal saline; In the diazepam interference group, no convulsion was noted in most of rat pups, except of indi- vidual ones, which showed only excitement and convulsion below stage Ⅱ.

结果 1。氯化锂-匹罗卡品致幼鼠SE后其抽搐行为的观察生理盐水

Vinylene carbonate ,a novel monomer and dienophile, can be used for various applications.

碳酸亚乙烯酯是一种新型的单体和亲二烯体，它的用途非常广泛，可以作为锂离子电池电解液的添加剂，还可以作为一种表面涂层的组分。

Treatment of polystyrene-supported selenium ,bromide with lithium acetylides afforded polystyrene-supported selenoacetylene, which reacted with dicyclohexylborane giving a way for stereoselective synthesis of polymer-supported- vinylic selenides .

聚苯乙烯负载硒溴与炔基锂反应合成聚苯乙烯负载炔基硒醚，再与二环己基硼烷反应制得聚苯乙烯负载顺式烯基硒醚；此负载型烯基硒醚在NiCl2(PPh3)2存在下与格氏试剂发生偶联反应，提供了一种有效的-1，2-二取代乙烯的固相有机合成方法

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。