钛氧基

The substituted half-sandwich titaconece with bulky alkoxyl group [CpTiC1〓 or CpTi 〓] or indene ring can not be fluorinated by BF〓·Et〓O under the selected condition, but still coordinates with the BF〓, this coordination then enhances the steric effect that stabilizes the precursor and hinders the reduction of the Ti to the Ti species, reflected in the decrease in polymerization activity.

但是这个转化受主催化剂分子的空间位阻和聚合反应温度的影响，当主催化剂为大位阻的烷氧基取代茂钛络合物或茚钛络合物时，在一般的聚合温度下BF〓不能对它们进行氟化，但可以和其中的OR配位，这种配位进一步加剧了空间位阻，从而阻碍了活性中心的形成，导致催化活性的下降。

In the last part of the thesis, synthesis of mesostructured titania has been explored with a selfassembly of hydrophilic polymer and anionic surfactant used as template, along with titanium alkoxide as inorganic precusor. The product was proved to have mesostructure and the fiber and spherical morphology is favored.

本文最后一部分首次探索以亲水性高分子和阴离子表面活性剂形成的自组装体为模板、烷氧基钛为无机原料合成介相结构氧化钛；产物具有介相结构，其颗粒形貌为纤维和圆球的混合物。

Commercially, the alkoxy titanates have a wide range of application areas and are used in several billion dollars worth of finished goods, according to Monte.

Monte说，在商业上，烷氧基钛酸酯有广泛的应用领域，使用在价值几亿美圆的终端产品上。

Second, the polymerization behaviors of alkoxyl substituted Cp titanocene for styrene syndiotactic polymerization were investigated.

其次，本文研究了烷氧基取代的茂钛络合物对苯乙烯间规聚合的催化作用。

Water,butylene glycol,cyclomethicone,VP/VA copolymer,glyceryl stearate,glycerin,ppg-15 stearyl ether,titanium dioxide,propylene glycol,cetyl alcohol,citrus aurantium dulcisfruit extract,saccharide isomerate,biosaccharide gum-1,ethoxydiglycol,peg-40 stearate,glycyrrhiza glabraroot extract,morus bombycis root extract,potassium cetyl phosphate,phenoxyethanol,c12-20 acid peg-8 ester,triethanolamine,prunus amygdalus dulcis oil,carbomer,caprylyl glycol,caffeine,disodium edta,methylparaben,chondrus crispus,butylparaben,iris germanica root extract,pentadecalactone,sodium polyacrylate,ethylparaben,sodium hyaluronate,peg-8,propylparaben,citric acid,chlorhexidine digluconate,tocopherol,ascorbyl palmitate,ascorbic acid

水，丁烯二醇，环甲硅脂，VP/VA共聚物，甘油基硬脂酸，甘油，ppg-15 stearyl ether，二氧化钛，丙二醇，十六烷基醇，橙子萃取物，天然异构寡糖， biosaccharde gum-1，乙基氧基乙二醇，聚乙二醇- 40硬脂酸，甘草根提取物，桑白皮根萃取，钾十六烷基磷酸盐，苯氧乙醇，c12-20 acid peg-8 ester，三乙醇胺，甜杏仁油，高分子胶，辛乙二醇，咖啡因，乙二胺四乙酸二钠，对羟基苯甲酸甲酯，卡拉胶，对羟基苯甲酸丁酯，鸢尾花根萃取， pentadecalactone ，聚丙烯酸钠，羟苯乙酯，透明质酸钠，聚乙二醇- 8，羟苯丙酯，柠檬酸，洗必泰葡萄糖酸盐，维生素E，维生素C棕榈酸酯，抗坏血酸

Water, Kaolin, Montmorillonite, Stearic Acid, Cetyl Alcohol, Glycereth-26, Glyceryl Stearate, Peg-100 Stearate, Aloe Barbadensis Leaf Juice, Triethanolamine, Titanium Dioxide, Menthyl Pca, Lauryl Pca, Fragrance, Diazolidinyl Urea, Propylene Glycol, Ethoxydiglycol, Methylparaben, Citric Acid, Panax Ginseng Root Extract, Zinc Pca, Copper Pca, Yellow 5, Blue 1

水，高岭土，蒙脱土，硬脂酸，鲸蜡醇，Glycereth-26，甘油硬脂酸酯，培格100硬脂酸，芦荟叶汁，三乙醇胺，二氧化钛，薄荷醇，香料，尿素醛，丙二醇，乙氧基二甘醇，对羟基苯甲酸甲酯，柠檬酸，人参精华，锌，铜，黄色5#，蓝色1#。

Titanium incorporated mesoporous molecular sieves Ti-MCM-41, Ti-HMS, and Ti-MSU were synthesized through S〓I〓, S〓I〓, and N〓I〓 pathways using cetylpyridium bromide, tetredecylamine, and polyoxyethylene (10) stearyl ether as the structure-directing agents, respectively. The framework structure and the titanium coordination environment of these materials were characterized by XRD, N〓 adsorption/desorption, TG, TEM, FT-1R, DR UV-Vis, and ICP-AES. It was confirmed that the titanium was highly dispersed in the silica-based framework positions, and all samples were free of extra framework titanium impurities. The catalytic performance of these titanium containing mesoporous materials was investigated in the oxidation of styrene with aqueous H〓O〓 as the oxidant.

以TEOS和TBOT为硅源和钛源，分别以溴代十六烷基吡啶、十四胺和十八烷基聚氧乙烯基醚为模板剂，通过S〓I〓、S〓I〓和N〓I〓方式合成了含钛的介孔分子筛Ti-MCM-41、Ti-HMS和Ti-MSU，用XRD、N〓吸附/脱附、TEM、FT-IR、DR UV-Vis和ICP-AES等方法对它们的骨架结构、孔道结构以及钛原子的存在方式等进行了系统表征，结果表明钛原子以高分散的形式存在于以SiO〓为基本单元的介孔分子筛的骨架结构中，制备过程中未形成聚集态的骨架外金属氧化物物种。

Finally, we discuss the preparation, characterization and application of alkylsilane and mercaptoacetoxy monolayers on ordered mesoporous titanosilicate molecular sieve.

最后，我们讨论了介孔钛硅分子筛表面烷基硅烷单层和巯基乙酰氧基单层的制备、表征及应用。

And continuously in the USA since 1974, while this source [3] states that monoalkoxy titanates are used very widely...

同一来源的消息称，单烷氧基钛酸酯广泛应用于矿物填料在聚烯烃中的分散。

E. . The epoxidation of cis-allylic alcohols is difficult, and with 20％mol Ti 〓 and 30％mol tartrates, up to 80％e.

的对映选择性被得到；对难于环氧化的顺式烯丙基醇，使用20％mol四异丙氧基钛和30％mol酒石酸酯得到最高80％e.e。

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。