查询词典 silyl

The Si content in the silyl cellulosecould be controlled by adjustment of the molar ratio of silane and cellulose.

衍生物中硅的含量可通过有机硅与纤维素的摩尔比调节。

Won a long day for the sun to provide silyl acid products Co., Ltd., the Group is the world's leading industrial and specialty gas distributors, has been for many major manufacturers of the electronics industry to provide services.

赢创长期以来一直为大阳日酸株式会社提供甲硅烷产品，该集团是全球领先的工业及特种气体分销商，多年来一直为许多电子行业的主要厂商提供服务。

From now on, a win will be owned by virtue of their advanced technology products for the thin-layer photovoltaic, flat panel display and semiconductor products, electronic products industry silyl.

今后，赢创将凭借自身所拥有的先进技术，为薄层光电产品、平板屏幕及半导体产品生产所需的电子行业用甲硅烷产品。

It was demonstrated that the novel functional hyperbanched polyethylene could be prepared by the copolymerization of ethylene and polar comonomers protected by alkyl or aromatic silyl group.

研究表明，经烷基或芳基硅烷基团保护的极性单体与乙烯在MHNB催化作用下，通过共聚可以得到结构新颖的功能性超支化聚乙烯。

Study on the Approach and the Medchine for the Deprotection of Silyl Ether by Sodium Periodate

过碘酸钠去硅醚保护基方法及机理的研究在线阅读整本下载分章下载分页下载

The silanol groups of silica, is reacted with various silane reagents to produce covalently bound silyl derivatives covering a varying number of active sites on the surface of the support.

担体的表面，如，硅胶的硅烷醇基团，和不同的甲硅烷试剂反应制备共价键甲硅烷基衍生物，此衍生物在担体表面覆盖了许多不同的活性点。

The silyl cellulose has excellentthermostability, hydrophobicity, low density and stability in 〓 aqueoussolution, owing to crosslinking of cellulose chain with silane.

结果表明这些涂料中两种分子间产生较强的氢键使PU网络与P或硝化壳聚糖分子互相穿透形成稳定的半-IPN结构，并且是共混相容的。

The preferred organometallic compounds of the present invention are of the formula (R1)m M(PR23)x, where M is a metal selected from the group consisting of manganese, technetium, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium iridium and platinum wherein m is 0, 1, 2, 3 or 4; x is 2, 3, 4 or 5 and m+x are 2, 3, 4, 5, 6, 7 or 8, m and x selected according to each metals appropriate valence; each R1 is independently selected from the group consisting of hydrogen, deuterium, N2, H2, D2 and a variety of substituted alkyl groups; each R2 is independently selected from the group consisting of lower alkyl, aryl, arylalkyl, and alkyl-Z, aryl-Z and arylalkyl-Z where Z is selected from the group consisting of oxy, silyl, siloxy, oxysilyl, siloxy, oxysiloxy, silyalkyl, oxysilylalkyl, siloxyalkyl, oxysiloxyalkyl, silylalkoxy, silylalkoxy, siloxyalkoxy and oxysiloxyalkoxy; and wherein when M is cobalt and one group R1 is selected to be N2, then m is 2 and the second group R1 is hydrogen or deuterium.

有机化合物的首选本发明的配方是米(R1代)米×(pr23)、那里是一米的金属挑选出来，第一组由锰、锝、铼、铁、钴、镍、钌、铑、钯、锇、铱铂其中M是0、1、2、3或4； X是2，3， 4或5米×+有2，3，4，5，6，7或8 米和X挑选合适的价按每个金属； R1的是每一组由独立选自氢、氘、氮、氢气、 D2和各种烷基取代群体； R2中的每个组由独立选自烷基低、芳、芳基烷基、烷基的Z、芳基、芳基烷基的Z-那里的ZZ是选自组风、含硅、氧、oxysilyl、硅、oxysiloxy，silyalkyl， oxysilylalkyl，siloxyalkyl，oxysiloxyalkyl，silylalkoxy，silylalkoxy，siloxyalkoxy和oxysiloxyalkoxy；其中，M是当钴一派R1的选择是氮气、然后是2米，第二组R1的氘是氢或者。

Some useful fluorine-containing intermedi-ates were synthesized by the reaction of activated methylenecompounds or silyl enol ether with 2,2-dihydropolyfluoro-alkanoates or 2-hydropolyfluoroalk-2-enoates in the presenceof different bases.

进一步研究表明，在氢化钠的作用下，苯乙腈，苄基苯基甲酮也可以与2-氢多氟-2-烯酸乙酯发生亲核加成反应，苄基苯基甲酮的加成中间体经多聚磷酸环化，得到了间位氟烷基取代的α-萘酚衍生物。

The segments 〓 and 〓 were coupled via Cadiot-Chodkiewcz reaction to afford the intermediate 〓. After the silyl protective groups were removed by TBAF from 〓, we accomplished the stereoselective total synthesis of the target molecule-(11S, 16S)- Oplopandiol Acetate〓.

通过中间体化合物〓和〓的Cadiot-Chodkiewiza炔炔偶联反应得到了中间体化合物〓，再用TBAF脱除保护基完成了目标化合物〓的首次全合成，确证其绝对构型为11S、16S。

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。