丙酮基

The solubility of the novel polyamides are greatly improved compared with the conventional aramids, especially the polyamide with dendritic blocks of the second genernation as side chains are soluble in most of the common organic solvents such as ether, ethyl acetate, chloroform, acetone, tetrahydrafuran etc.

树状片段的引入大大地改善了聚酰胺的溶解性，特别是以第二代树状片段为侧基的聚酰胺的溶解性得到了很大的改进，可以溶于大部分常见的有机溶剂，如乙醚、乙酸乙酯、氯仿、丙酮、四氢呋喃等。

DPPH method, pyrogallol method and Fenton reaction were used to study the scavenging ability of extracts with 95% ethanol, ethyl acetate, acetone, acetic acid, chloroform, methanol to free radical activity.

方法］应用DPPH法、邻苯三酚自氧化法和Fenton反应分别研究了浓度95%乙醇、乙酸乙酯、丙酮、乙酸、氯仿、甲醇提取物清除自由基活性的能力。

In the Aldol condensation of acetone with 4-nitrobenzaldehyde, two different hybrid secondary amine-functionalized mesoporous materials displayed enhanced catalytic performance in comparison to primary amine-functionalized materials. The possible reason is that the presence of organic functional groups with larger steric hindrance led to the enhanced catalytic performance of basic amino groups.

在对硝基苯甲醛和丙酮的羟醛缩合反应中，相对于一级胺功能化的材料，二级胺功能化的SBA-15展示了极大改进的催化活性，这可能是由于具有更大空间位阻效应的有机功能团的引人导致了碱性胺中心催化活性增强。

The engine ran on a special mixture of methyl alcohol (63%), benzene (16%), ethanol (12%), acetone (4.4%), nitrobenzene (2.2%), avgas (2%), and ether (0.4%) with MW (methanol-water) injection for charge cooling and as an anti-detonant.

特别混合物燃料为引擎运转提供动力，甲醇(63%)，苯(16%)，对氨基苯甲酸二(12%)，丙酮(4.4%)，硝基苯(2.2%)，飞机用燃料(2%)和乙醚(0.4%)，以100W充电冷却射入并作为抗爆剂。

The conductivity and the molar conductivity of the ionic liquid in actone, water, DMF, acetic acid were investigated at different temperatures.

利用磷酸三丁酯与N-甲基咪唑在恒温150℃下一步合成了离子液体1-丁基－3-甲基咪唑磷酸二丁酯，考察了其在丙酮，水，DMF，乙酸溶剂中的电导率及摩尔电导率。

This article has carried on an overview of biosynthetic pathway of terpenoids and the HMG-CoA reductases.

人参皂苷等萜类生物合成分为甲羟戊酸和丙酮酸两种途径，两者都是以异戊烯基焦磷酸为主要的中间产物。

He analysis of the category and function of TCB stress inducible proteins showed that different groups of proteins were induced by 5 mg L^(-1) TCB stress. They are detoxification enzymes (including esterase, aldo/keto reductases, and glutathione S-transferase), cell wall compound metabolism related enzymes (including UDP-glucose protein transglucosylase and GDP-mannose 3,5-epimerase 1), phytohormone metabolism and regulation related enzymes or proteins (including aci-reductone dioxygenase 4, beta-glucosidase, two members of pathogenesis-related proteins from family 10), primary and secondary metabolism regulative enzymes (including translational elongation factor Tu, cytosolic orthophosphate dikinase, triosephosphate isomerases, alanine aminotransferase, and isoflavone reductase).

CB胁迫能诱导根系内不同类型蛋白质的表达，它们是：解毒酶（包括脂酶、醛／酮还原酶、谷胱甘肽－硫转移酶），细胞壁物质代谢相关酶（包括蛋白转葡萄糖基酶、GDP-甘露糖－3，5-异构酶1），激素代谢或调节相关酶（包括酸式－还原酮二加氧酶、β-葡萄糖苷酶、病程相关蛋白家族10中的2个不同蛋白），原初或次生代谢相关酶（包括转录延长因子、细胞质磷酸丙酮酸双激酶、磷酸丙糖异构酶、丙氨酸氨基转移酶和异黄酮还原酶）。

We sold 2-butanone 8000T, acetone 6000T and methyl isobutyl ketone 5000T in last year. The well-known domestic enterprises and joint ventures are both our main partners. So we have a good market credit, we will not only meet client's demand for the product, but also formed a stable base for logistics and distribution.

本公司年销售丁酮8000T，丙酮6000T，甲基异丁基甲酮5000T，我们主要合作伙伴有合资企业及国内知名企业，具有良好的市场信誉，我们不仅满足客户的生产需求，而且逐渐形成一个稳定的物流配送基地。

Methyl isobutyl ketone is a good origanic slovent and the advanced process for producing MIBK is one-step synthesis by gas-phase condensation and hydrogenation of acetone. In this process, the key technology is to develop the multi-fuctional catalyst, which has both the ability of hydrogenateon and condensation, as well as suitable acid-base sites.

甲基异丁基酮是一种优良的有机溶剂，先进的生产方法是丙酮气相缩合加氢一步法，该工艺关键的技术是开发高效的双功能催化剂，即催化剂同时具有缩合、加氢以及适宜的酸、碱性质。

A new catalyst Ni K/NaX for the synthesis of methyl isobutyl ketone from acetone and hydrogen in one step at atmospheric pressure has been prepared.

利用化学浸渍法制备了系列Ni－ K／NaX复合型催化剂，用于常压下催化丙酮一步法合成甲基异丁基酮，考察了催化剂组成及反应条件对反应性能的影响。

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。