芳烃

The results showed that, both diene and alkaline nitrogen-containing compounds had negative influence on the aromatization stability of the catalyst.

用小型固定床加压反应器研究了液化石油气（C4 LPG）中的丁烯在纳米ZSM-5型催化剂DLG-1上的低温芳构化反应，重点考察了原料中二烯烃和碱性氮杂质，以及反应温度、压力和C4 LPG进料重量空速条件对催化剂芳构化反应活性及稳定性的影响。

In one embodiment, the invention is a system for initiating free radical polymerization comprising: a in one part, one or more amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate wherein the boron atom is bonded to a nitrogen atom of ammonia or an organic compound containing one or more nitrogen atoms, such as a hydrocarbyl amine, a hydrocarbyl polyamine, or an aromatic heterocycle containing one or more nitrogen atoms and optionally containing one or more heteroatoms or heteroatom containing functional moieties, and one or more cationic counter ions and b in a second part, a liberating compound which reacts with the nitrogen atom bound to the boron atom upon contact with the amido-borate to form an organoborane radical.

在一个实施方案中，本发明是引发自由基聚合的体系，包括：a在一个部分中，一种或多种含有一个或多个包含有机硼酸根的阴离子酰氨基-硼酸盐部分和一个或多个阳离子抗衡离子的酰氨基-硼酸盐化合物，其中的硼原子键合到氨的氮原子或含一个或多个氮原子的有机化合物，例如烃基胺、烃基聚胺或含一个或多个氮原子和任选含一个或多个杂原子或含杂原子的官能部分的芳族杂环的氮原子上，和b在第二部分中，在与酰氨基-硼酸盐接触时与键合到硼原子上的氮原子反应形成有机硼烷基团的释放化合物。

It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.

第三章，我们研究了在水相介质中金属铟促进的烯丙基溴对1，1-二氰基-2-芳基乙烯的Michael加成反应，生成一个含碳碳双键和二个碳氮叁键的三官能团化合物，另外，金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联，生成砜。

In chapter 4 an abnormal reaction that the nitro group of 1-aryl-2-nitroethenescan be easily replaced by the organic moity of FG-RZnI using Ni〓 and tertiaryamine as catalyst was first given. The experimental results show that in the presenceof catalytic amount of Ni〓 and tertiary amines, the reaction of FG-RZnI andl-aryl-2-nitroethenes give the substitution products l-aryl-l-alkene, instead ofMichael addition products.

通过实验发现，在催化量的Ni〓及叔胺催化下， l-硝基-2-芳基乙烯与烷基碘化锌并不进行Michael加成反应，而是发生1-硝基-2-芳基乙烯中硝基被取代的反应，生成了高产率的1-芳基-l-烯烃，由于此反应的原料易得、反应条件温和、产物的产率高，因而是合成l-芳基-1-烯烃的有效方法。

The present invention relates to a thermoplastic interpolymer product comprising an alpha -olefin interpolymerized with at least one vinyl or vinylidene aromatic monomer and/or at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene aromatic monomer and, in at least one aspect, is characterized as having substantially synergistic thermal properties.

本发明涉及一种包含与至少一种乙烯基或亚乙烯基的芳族单体和/或至少一种受阻的脂族或环脂族的乙烯基或亚乙烯基芳族单体共聚的α－烯烃热塑性共聚体产物，及至少一方面，其特征为具有实质协同热性质。

Also useful are oil-soluble copper dithiocarbamates of the general formula Rc Rd z Cu, where z is 1 or 2, and Rc and Rd are the same or different hydrocarbyl radicals containing from 1 to 18, and preferably 2 to 12, carbon atoms, and including radicals such, for example, as alkyl, alkenyl, aryl, aralkyl, alkaryl and cycloaliphatic radicals.

化学通式为Rc Rd z Cu的油溶性二硫代氨基甲酸铜也适用，式中，z为1或2，Rc和Rd是含1～18（以2～12为宜）个碳原子的相同或不同的烃基，这类烃基的实例包括烷基、烯基、芳基、芳烷基、烷芳基和脂环基。

Also useful are oil-soluble copper dithiocarbamates of the general formula Rc RdzCu, where z is 1 or 2, and Rc and Rd are the same or different hydrocarbyl radicals containing from 1 to 18, and preferably 2 to 12, carbon atoms, and including radical s such, for example, as alkyl, alkenyl, aryl, aralkyl, alkaryl and cycloaliphatic radicals.

通用化学式为RcRdzCu的油溶性二硫代氨基甲酸铜，也非常有用。式中，z为1或2，Rc和Rd是含有1到18个碳原子（最好含有2-12个碳原子）的相同或不同的烃基根，并且包括烷基、链烯基、芳基、芳烷基、烷芳基和环脂基等。

The results showed that the β zeolite had better activities of isomerization and aromatization,and the cracking and aromatizing activities increased with the reaction temperature increasing,but the yield of isomerized olefin s decreased.

结果表明，β沸石具有较好的异构化和芳构化能力，并随反应温度的升高，其裂解和芳构化能力逐渐增强，异构烃产率逐渐降低；工业低硅ZSM-5型分子筛的裂化活性较强；催化裂化汽油经改质后其烯烃含量均有所降低，且辛烷值基本不变。

FRs can strongly suppress the elimination of HCl, raise the on-set temperature of decomposition of PVC, promote the crosslinking during decomposition, reduce the total output of aromatic compounds, increase the gel of condensed phase and char residue, the char residue is loosened. The configuration of FRs has no changed.

这类阻燃抑烟剂能抑制PVC热分解脱HCl反应，提高HCl释放的起始温度，在热分解过程中促进分子间形成交联键，使裂解气相产物中芳烃化合物含量减少，凝聚相凝胶含量增大，残炭量提高，残炭物结构呈松散状态，阻燃抑烟剂在热分解过程中化学结构保持不变。

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。