溶剂

In the second part of this thesis, we calculate the common mesophases for the ABm star copolymers.

在本文的第二个部份我们计算出ABm星状共聚物在弱选择性溶剂中的相行为。

Above all, water is a kind of solvent, which can solve hard stone.

首先，因为水是一种极佳的溶剂，它能溶解坚硬的岩石。

The dissertation studied firstly the separation of tall oil with supercritical carbon dioxide extraction in China.

对重结晶使用的溶剂进行优选，分别采用正丁醇和丙酮为溶剂来进行重结晶，可得到较高纯度的β-谷甾醇。

Optical rotation is also affected by the solvent used for the measurement, and this is always specified.

旋光还受检验所用溶剂的影响，而此溶剂总是作出明确规定的。

Discussions about them show that optical activity of solute had no evident effect on extraction distribution coefficients.

所选溶剂的萃取过程有着三个方面的共性；对于不同种类的溶剂，萃取过程还存在其特殊的规律。

Because the the dispersive stability and chemical modification is an important factor, this study emphasize on the issues of latent pigment recovery yield, product polarity, molecular volume, and dispersive stability in solvents.

由於溶剂对颜料分散之稳定度及化学改质反应是ㄧ重要因素，故本研究针对不同溶剂的极性及体积大小和其对颜料分散的稳定度对改质回收率的影响做ㄧ系统之讨论。

Acetone is also an important basic organic material, being used in the manufacture of methyl methacrylate, bisphenol A, methyl isobutyl ketone, and also in the production of cellulose acetate tablets, solvents for pla,stics and paints, and the solvent dewaxing for petroleum refining. In 2006, the production ability for phenol was 610,000 tons per year in China, the output was 520,000 tons, and the appearance consumption was 752,000 tons.

丙酮也是重要的基本有机原料，它用于制造甲基丙烯酸甲酯、双酚A、甲基异丁基酮等，用于生产醋酸纤维素片、塑料和涂料的溶剂以及石油炼制的脱蜡溶剂。2006年，我国苯酚生产能力61万吨/年，产量52万吨，表观消费量75.2万吨。

The results show that the as-synthesized chalcone-containing copolymers are a kind of thermosensitive polymer with a lower critic solution temperature and the LCST of the copolymer decreases with the increase of the chalcone content in the copolymer. With the increase of the solvent polarity, both the maximum absorption wavelength and the fluorescence emitting wavelength of the chalcone-containing copolymers redshifts, and the intensity of fluorescence first increases, then decreases, which exhibits solvent polarity sensitive fluorescence properties.

结果表明，侧链查尔酮共聚物是一类具有低临界溶解温度的温敏性聚合物，其LCST温度随着共聚物中查尔酮含量的增加而降低；随着溶剂极性的增加，侧链查尔酮共聚物的紫外-可见最大吸收波长红移，其荧光发光波长红移并且发光强度先增强后降低，具有溶剂极性敏感的荧光特性；同时对比侧链查尔酮共聚物水溶液低温和高温下的荧光，发现低温下几乎无荧光，高温下其荧光得到明显增强，其荧光具有可逆的温度&开/关&特性。

By esterification, saponification, doubledecomposition and formulation, liquid rare earth of monoisooctyl phthalate complex heat stabilizer was prepared with phthalic anhydride, isooctyl alcohol, sodium hydrate, rare earth chloride, mixed solvent and other reagents. The optimum conditions are: the temperature of esterfication is 130～140℃,and the reaction time is 1h. The temperature and time of saponification is 60℃ and 10min respectively. The temperature of double decomposition is 60～70℃,and the reaction ti...

摘 要：以邻苯二甲酸酐、异辛醇、氢氧化钠、氯化稀土、混合溶剂、助剂为原料，通过酯化反应、皂化反应、复分解反应以及复配制备了以邻苯二甲酸单异辛酯稀土为主要成分的液态稀土复合热稳定剂，其工艺条件为：酯化反应的温度控制在 130～ 14 0℃，反应时间为 1h ；皂化反应的温度为 6 0℃，反应时间为 5min ；复分解反应的温度在 6 0～ 70℃，反应时间为 1h ；水洗温度控制在 6 0～ 6 5℃；混合溶剂的用量为 5 0 %，稀土含量为 6 0 3%；在复配过程中，采用亚磷酸酯作为辅助热稳定剂，其用量为 5 %～ 7%，PVC中加入 2 %的这种稀土复合热稳定剂，在185℃下，其热稳定时间为 4 5min。

The reaction between ammonia and carbon disulfide is a parallel one. Solvent affects the reaction mechanism and reaction rate.

不同溶剂条件下产物的定量分析证实了二硫化碳和氨反应中的溶剂效应。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！