环烷

The invention provides a nanometer catalyst for liquid phase oxidation process of cyclohexane, which is characterized in that a silica molecular sieve SBA-15 with meso pore canal is taken as a carrier; one or a plurality of transition metals is/are taken as active component, which is highly dispersed in the carrier, with lower content ranging from 1 percent to 3.5 percent of mass.

一种用于环己烷液相氧化的纳米催化剂，其特征在于：采用具有介孔孔道的全硅分子筛SBA-15为载体，一种或数种过渡金属氧化物为活性组分，活性组分在载体上高度分散，含量较低，范围为1％-3.5％质量。

The primary content of this paper is the synthesis of POSS with r-glycidyl-propyl-trimethoxysilane throught hydrolysis and condensation reaction and the modification of shape memory polyurethane with synthesized POSS.

本文主要研究了以γ-(2，3环氧丙氧)丙基三甲氧基硅烷为原料通过水解缩合反应合成含有羟基的POSS以及利用该产物改性形状记忆聚氨酯。

The esterification reaction and itsinfluencing factors of hexanoic acid with n-butanol, catalyzed by lipaseNovozym100T, were studied in water-in-oil microemulsions formed by alkylpolyglucoside C_(12)G_(1.50)/n-butanol/cyclohexane/water system.

研究发现，十二烷基聚葡糖苷C_(12G_(1.50)／正丁醇／环己烷／H_2O体系形成的油包水微乳液中，脂肪酶Novozym100T催化正己酸和正丁醇的酯合成反应，反应初始速率V_0随正己酸的初始浓度C_~0增大而增大；随正丁醇的初始浓度C_~0的增大而减小，后V_0进入一&坪区&。

Compound 5 reacted with Grignard reagent of 9 followed by cyclozation to afford target molecule 11. All intermediates and target product were confirmed by IR, 1H NMR and HRMS.

化合物5与9的格氏试剂偶联和关环反应完成目标产物3-羟基－10-去甲基－12-甲氧基－13-甲基罗汉松烷(11)的全合成。

In this study, Cryptomeria japonica was liquefied in phenol with H2SO4 and HCl as a catalyst. The epoxy resin was synthesized from epichlorohydrin and bisphenol A with the molar ratio of 5/1. Blending resins were prepared by mixing the liquefied Japanese cedar and epoxy resin with weight ratios of 30/100, 50/100 and 70/100, and the triethylene tetramine was added as a cross-linking hardener. The effect of mixing ratios of liquefied Japanese cedar to epoxy resin and amount of hardener added on the reactivity of blending resins and the properties of cured resins were investigated. Furthermore, polysiloxane and rice husk were added as foaming agent and filler, respectively, to the epoxy resin and blending resins. The foaming process, the bubbles shape, the mechanical properties, and the thermal stability of the epoxy foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica； Japanese cedar)木材以酚为溶剂，H2SO4及HCl为催化剂进行液化处理，另以莫耳比5/1之环氧氯丙烷与双酚A反应合成环氧树脂，并将液化柳杉与环氧树脂以重量比30/100、50/100及70/100混合制备掺合树脂，并以三乙基四胺(Triethylene tetramine； TETA)为架桥硬化剂，探讨液化柳杉与环氧树脂混合比及硬化剂添加量对其掺合树脂之反应性，及其硬化树脂性质之影响；进一步於环氧树脂与掺合树脂中添加聚矽氧烷为发泡剂，稻壳粉为填料制备发泡体，探讨其发泡体之发泡过程、泡体形态、发泡体机械性质与热稳定性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失