环乙烯

Two cyclohexanes were first reported in Murraya.

主要成分3，4-二乙烯基-3-甲基环己烷在本属其它种未见报道。

A dynamic generating toxic gas system and a nose-only exposure system were used for the pharmacokinetic study of inhaled environmental contaminants for benzene, toluene, xylene, ethylbenzene,chlorobenzene, styrene, isopropyl benzene, tetrachloroethylene, nonane and methylcyclohexane in male guinea pig.

用动态配气设备和鼻式吸入方式染毒，采用雄性豚鼠对环境中10种挥发性污染物(苯、甲苯、对二甲苯、乙基苯、氯代苯、苯乙烯、异丙苯、四氯乙烯、甲基环己烷和壬烷混合物)的吸入动力学进行了研究。

The possible mechanism was discussed. These bowl-shaped aggregates are promising candidates for nano reactor or drug carrier.4 2,7-dimethylene-1,4,6-trioxaspiro[4, 4]nonane with two vinyls was prepared to be used as electron-donor and crosslinker. The ATRP of this crosslinker and excess methylacrylate (used as electron-accpetor) was proved to mainly form homopolymers. With the chain-transfer agent S-1-Dodecyl-S\'-(α,α\'-dimethyl-α-acetic acid)trithiocarbonate, the copolymerization of the spiro hydrocarbon, maleic anhydride and MA by RAFT method produced star PMA.

这些由聚电解质复合物自组装形成的聚集体，在微反应器和药物释放等领域具有潜在的应用前景。4合成了双乙烯基的2，7-二亚甲基-1，4，6-三氧杂螺环烷，作为给电子单体和交联剂，与吸电子单体马来酸酐或过量的丙烯酸甲酯形成电荷转移络合物共同聚合，尝试了用ATRP和RAFT方法一步法合成星形聚合物。

A new imidazolinyl intermediate is prepared from phenylacetic acid and diethylenetriamine firstly, and then they react with the solution of sodium chloroacetate into the imidazolinyl quaternary ammonium salt.

以二甲苯为溶剂，苯乙酸和二乙烯三胺为原料，经酰胺化和环化脱水合成了新型咪唑啉化合物，并用氯乙酸钠溶液对其进行改性得到了苯乙酸咪唑啉季铵盐。

Ethylene-bis-heterocyclic compounds is much international attention in recent years a new type of photochromic material.

二芳杂环基乙烯类化合物是近年来国际上备受重视的一类新型光致变色物质。

The C 5 Fraction derived from ethylene steamcracker contains some very useful components, isoprene, cyclopentadiene and piperylene .

来自裂解乙烯的 C5馏份含有非常有用的化工原料——异戊二烯、环戊二烯、戊间二烯。

For the above purposes, using a tailored cyanometalate precursor,(1) Tp=hydrotris (pyrazolyl borate; Bu〓N〓=tetrabutylammonium cation , two trinulear complexes,〓(2),〓(3; cyclam: 1, 4, 8, 11-tetraazacyclotetradecane), two one-dimensional polymers,〓(4; dien: diethylenetriamine),〓(5), and a cluster 〓(6) have been synthesized and characterized structurally and magnetically.

基于上述研究热点，我们以修饰的氰基金属化合物(1)为构筑基元（Tp：三吡唑基氢硼烷，Bu〓N〓：四丁基铵离子），合成了两个杂三核化合物，〓(2)，〓（3；cyclam：1，4，8，11-四氮环十四烷），两个一维聚合物，〓（4；dien：二乙烯三胺），〓(5)，和一个十四核簇合物〓(6)。

The cyclopropanation reaction of ethylene with samarium carbenoid was studied by means of the B3LYP hybrid density functional method.

用密度泛函B3LYP方法研究了过渡金属钐类卡宾与乙烯的环丙烷化反应的机理。

- 1 - [2 -（bispheny - iodine - stannyl）vinyl] - 1 - cyclohexanol crystal structure antifumor activity

-1-[2-乙烯基]-1-环己醇；晶体结构；抗癌活性

Main products are Perfluorosulfonated acid resin, PFSA aqueous dispersion, and on the basic of them, HFPO,TFE sultone,PSVE,PPVE,MTPME etc fluorinated fine chemicals,and FEP,FKM,PVDF etc fluorpolymers.

公司主导产品有全氟磺酸离子交换树脂、全氟磺酸离子交换树脂溶液，同时以此为依托，配套生产六氟环氧丙烷、四氟磺内酯、PSVE、PPVE、甲氧基四氟丙酸甲酯等含氟精细化学品，聚全氟乙丙烯树脂（FEP，F46）及分散液、氟橡胶、聚偏氟乙烯等含氟高分子材料。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。