卤

The goal of this research is focused on the preparation of phosphorus-containing aralkyl novolac resin and phosphorus-containing aralkyl cyanate ester.

本研究主要目的为发展新颖反应型非卤型低应力难燃剂，首先合成芳烷基酚醛树脂并再进ㄧ步改质，可得含磷芳烷基酚醛树脂与含磷芳烷基氰酸酯。

The synthesized phosphorus-containing aralkyl resin is a halogen-free and low stress material, which can improve flame retardancy of the cured epoxy resin and can also satisfy the demand for the low stress.

本研究所合成之含磷芳烷基树脂，其特色除了为非卤材料之外，同时亦为低应力之材料。

The growth kinetics and the stability of synergistic films of benzotriazole and halide ion were investigated by bulk acoustic wave method.

采用体声波传感技术就卤素离子与铜缓蚀剂——苯骈三氮唑协同成膜的动力学及相应复合膜的稳定性进行了研究。

The good herbicidal activity can not be observed at low dosage of 75 g ai/hm~2 for N-(mono-ester substituted phenyl)-2-(4, 6-dimethoxy-pyrimidin-2-yloxy)benzylamine derivatives in post-emergent and pre-emergent application.

主要研究结果如下：(1)氧桥单取代卤素嘧啶苄胺类化合物是一类具有高除草活性的化合物，在75 g ai／hm~2低剂量下，一些化合物表现出良好的芽后和芽前除草活性。

Grasp the electron delocolization theory; be capable of judging the relative stability of allylic and benzylic free radicals and carbocations, know the relative stability of dienes and other multiple unsaturated hydrocarbons; grasp the characteristics for the nucleophilic substitution reactions of allyl halides and benzyl halides, and the addition reactions of conjugate dienes.

掌握电子非定域化理论；能够分析判断烯丙基、苄基自由基和正离子的稳定性和二烯及多重不饱和碳氢化合物的稳定性；掌握烯丙基、苄基卤代物的亲核取代反应特性和共轭二烯的加成反应。

The yield of biphenyl in a Triton X10 ME system was found higher than that in the biphase system. The reactivities in different ME were also studied.

结果表明，微乳体系中联苯收率高于两相体系；比较了在离子、非离子表面活性剂构成的不同微乳体系中的反应活性；研究了卤代芳烃在Tx10 ME中的甲酸钠、碱类型、Pd/C用量、温度等对反应的影响。

Synthetic carnallite;adding brine cold-crystallization;bischofite

合成光卤石；兑卤冷结晶；水氯镁石

It is studied further that the dissolubility of the bismuthous sulfide in the solutions of the non-oxidative strong acid through the experiment by means of chemical thermodynamics.

运用化学热力学基础理论和方法研究了硫化铋在无氧化性强酸和可溶性碱金属卤化物溶液中的溶解性。

A series of liquid crystals containing naphthalene 1~13 was synthesized by the reaction of carbonyl compound with Grignard reagent and coupling reaction between phenyl boronic acid and halogen naphthalene .

经羰基化合物与格氏试剂反应及芳基硼酸与萘基卤化物偶联反应合成了系列含萘环骨架液晶化合物1~13；产率在73%~759%。

We studied the effect of water on the palladium acetate-catalyzed coupling reaction of aryl boronic acid with aryl bromide or acyl chloride in ionic liquid or PEG, and found that water had a remarkable rate accelerating effect on the Suzuki reaction and Suzuki-Type reaction when other reaction conditions were uniform.

研究了水对离子液体或聚乙二醇中Pd2催化的卤代苯或苯甲酰氯与苯硼酸的Suzuki和Suzuki-Type偶联反应收率的影响。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。