查询词典 polymerization

Usage: useful for pharmaceutical intermediate,especially useful for intermediate of synthesis aids inhibitor and high temperature resistant resins and metallocen catalyst for olefine polymerization.

用途：用作各种医药合成中间体，特别是抗艾兹病药物，治疗糖脲病药物以及治疗心律不齐病药物的中间体以及烯烃聚合用金属茂络合物催化剂配位体和透明的耐热性树脂原料。

Performing the process in the presence of the organoboron or organoaluminum-treated solid surprisingly leads to an increased activity compared to polymerization processes performed without the treated solid.

与不使用处理过的固体进行的聚合方法相比，在有机硼或有机铝处理的固体存在下进行所述方法令人惊奇地使活性增加。

Scanning electron microscopy,transmission electron microscopy,circular dichroism and small-angle X-ray diffraction were used to analyze the aggregation mode of CSG in the organogel phase.A hierarchical self-assembly model was proposed to explain the transition from molecular to primary and secondary structure.It is shown from our results that CSG can aggregate into a micellar fibril nanostructure with high length-to-width ratio which is bundled and entangled to form a three-dimensional(3D) network that immobilize the fluid component probably by surface tension.Moreover,sol-gel polymerization of tetraethoxysilane was carried out using CSG in the gel phase.

通过扫描电镜(ScanningElectron Microscopy，SEM)、透射电镜(Transmission Electron Microscopy，TEM)、圆二色谱(Circular Dichroism，CD)和小角X—射线衍射仪(Small-angle X-rayDiffraction，SAXRD)考察CSG分子自组装行为结果表明，CSG形成的聚集体具有多级结构：首先CSG通过手性堆叠自组装形成直径在9—10nm的细纳米纤维，这些细的纳米纤维再以不规则的六方堆积的方式进行排列，构成直径在40—100nm的粗纳米纤维(即细纳米纤维的&捆束&)，最后粗纳米纤维互相粘连形成三维网络状结构，使有机溶剂&固定&，从而形成凝胶；以CSG有机凝胶为模板，四乙氧基硅烷为前体，通过溶胶—凝胶聚合的方法制备了直径大约为100nm的二氧化硅纳米管。3。

In addition, the invention further relates to a catalyzer combination used for polymerizing a conjugated dialkene monomer and the anions of an optional mono-vinyl aromatic hydrocarbon into a polydiene polymer having high and medium vinyl content. The catalyzer combination comprises an organolithium compound used as an anionic polymerization initiator, at least an alkali metal alkoxide compound expressed by the formula as a structure regulator.

此外，本发明还涉及一种用于将共轭二烯烃单体和任选的单乙烯基芳烃阴离子聚合成具有中高乙烯基含量的聚二烯聚合物的催化剂组合物，其包含作为阴离子聚合引发剂的有机锂化合物，和作为结构调节剂的至少一种式所示的碱金属醇盐化合物。

In addition, in the condition of high content of OMMT, poly/organophilic montmorillonite prepared by in-situ polymerization was orderlessly intercalated nano-masterbatch, the space of the layers reached 3.65nm.

另外，还在OMMT高含量(60wt％)条件下，通过单体插层原位聚合法制得了OMMT／PMMA无序插层型纳米母料，蒙脱土的层间距达到了3.65nm。

Conductive polyaniline-amino acid encapsulating organophilic montmorillonite nanocomposites were synthesized using liquor intercalate d and ultrasonic intercalate d polymerization.

以氨基磺酸为掺杂剂，过硫酸铵为引发剂，分别采用溶液插层和超声波插层的方法制备了聚苯胺包覆有机蒙脱土纳米复合材料。

Polystyrene-MMT nanocomposites were prepared by free radical polymerization of styrene containing dispersed clay. The organophilic MMT particles were easily dispersed and swollen in styrene monomer.

采用双－苯基二甲基十八烷基溴化铵作为有机插层剂对钠基蒙脱土进行了有机化处理，该有机化的蒙脱土粒子在苯乙烯单体中很容易地均匀分散并形成稳定的胶体溶液。

The PMMA/SiO2 hybrid materials with the presence of chemical bond through the reaction of WD-20 with tertraethyl orthosilicate were prepared by in-situ polymerization.

深入研究了偶联剂在聚合物/二氧化硅纳米复合材料中的分散作用，制备了光透过率达90%以上的聚合物/二氧化硅纳米复合材料。

A simple one-step procedure was described for the synthesis of mesoporous monolith and composite sphere, in which hydrolyzation of tetraethyl orthosilicate and polymerization of urea with formaldehyde occurred at the same time.

利用酸性条件下正硅酸乙酯的水解和脲醛树脂的聚合反应同时一步原位进行的方法合成了二氧化硅复合粉体(包括核壳微球结构和网状结构)和块体凝胶材料。

By optimizing the LTCVD and graft polymerization conditions, a selective and permeable membrane for dehydration of alcohol was obtained when LTCVD was performed at 175 ℃ with 5 mL of tetraethyl orthosilicate and AA grafting was carried out in solution of 7.5% AA.

通过系统研究气相沉积和接枝反应的主要条件对膜的渗透汽化性能的影响，发现当TEOS用量为5 mL，汽化温度为175 ℃时进行气相沉积，然后在丙烯酸浓度为7.5%的溶液中进行接枝聚合，制得的复合膜对醇水混合物显示了优良的分离性能。

The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.

其目的是压制和打击人民的积极性，因为这可以让实权派继续统治不会沦为反对派。

GOD,this is the second time you vanquished me!

天啊，这是第二次你打败了我！