查询词典 polymer

This paper aims at measuring 3-D distribution of concentration field in a polymer/small molecule diffusive system.

本文的目的是测得高聚物／小分子扩散体系的三维浓度场分布。

The Jou model based on the EIT theory was used to study "overshoot" behavior observed in polymer diffusive system.

利用在EIT理论基础上的Jou模型研究了高聚物扩散体系中的"超调"现象。

RESULTS:The diffusive rate of diclofenac sodium from the two kinds of hydrophilic polymer gel was higher than that of diclofenac acid.

结果：在亲水的高分子凝胶基质中，离子形式的双氯芬酸钠扩散速率大于分子形成的扩散速率。

It shows that alkoxylated surfactant and attapulgite clay may interact strongly to lead to its properties in dilatability, suspension and viscosity change being better than contrastive systems of polymer and anion surfactant, and its ternary system is also superior to binary one.

分析其原因发现，种衣剂中大量颗粒存在一定的界面和界面能，属于热力学不稳定体系，自发趋势倾向于界面能的减少，这就使颗粒之间产生聚集、絮凝，最终影响了种衣剂的物理稳定性。

The effect on polymerization reaction and polymer with the catalyst system is systematacially studied in this paper, and the polymerization kinetics of butadiene is determined by dilatometer method.

本文系统的研究了该催化剂体系对聚合反应及其产物的影响，以膨胀计法测定了丁二烯聚合反应动力学。

The results show that when molar ratio of epichlorohydrin and dimethylamine is set as 1.5:1 and the amount of 1,2-diaminoethane is 3%, polyamine flocculants get the best viscosity and cationic degree and have excellent decoloration efficiency through the adsorption and subsequent formation of particle-polymer-particle bridges.

结果表明，环氧氯丙烷和二甲胺的摩尔比为1.5：1，乙二胺加入量为3%时，聚合物的粘度和阳离子度最大，具有较强的吸附架桥和电中和作用，对染料废水有较好的脱色效果。

Diphenyl carbonate is an environmentally benign intermediate for producing many organic compounds and polymer materials.

碳酸二苯酯是合成许多有机化合物和聚合材料的环保型中间体。

On the one hand,Magnetic Polymer Microsphere could covalent active materials—enzymes,cells and antibodies;on the other hand,they could show strong magnetic responsibility for their directional movement in the magnetic field.

一方面磁性聚合物微球可通过共价键来结合酶、细胞和抗体等生物活性物质；另一方面因其具有"在外界磁场存在下能定向运动"这一特殊性能，可对外加磁场表现出强烈的磁响应性，因此它被用作酶、细胞、药物等的载体，广泛地应用到生物医学、细胞学和生物工程等领域。

It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.

本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题，系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性，通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析，全文主要内容如下： 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明：红磷在空气中发生缓慢氧化、歧化反应，微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度，其中铜离子的作用最为明显，而铝、锌等离子减慢了红磷的氧化速度，银离子对减少红磷的吸湿性效果最好。

It is that:(1) the related compounds in Metronidazole Buccal Tablets prepared by Chongqing Medical College can be tested by determining (321nm) the total peak area of the impurities;(2) The related compounds in Metronidazole Disodium Phosphate for Injection prepared by Chongqing Medical College can be test by determining (254nm) the total peak area of the impurities and the peak area of the largest impurity;(3) Ceftriaxone polymer in Ceftriaxone Sodium for Injection prepared by Chongqing Keru Pharmacy Co.

结果如下：①用HPLC一UV法，在321nm处检测，用归一化法计算，控制各杂质峰面积的和，可检查重庆医科大学的注射用甲硝吟磷酸二钠中的有关物质：②用HPLC一UV法，在254nm处检测，控制杂质峰面积的和及控制最大杂质峰面积，可对重庆科瑞制药股份有限公司的注射用头饱曲松钠中的有关物质实施控制；③用HPLC一Uv法，在254nm处检测，按外标法计算，可检查注射用头抱曲松钠中的聚合物；④用紫外分光光度法，在277nm波长处测定吸收度，按C6H9N303的吸收系数为377计算每片标示百分含量，可测定重庆医科大学的甲硝哇口颊片的含量均匀度；⑤用紫外分光光度法，在277run波长处分别测定释放溶液20min、50min和90min的吸收度，按甲硝哇(C6H剥303)的吸收系数为377计算释放度，可检查重庆医科大学的甲硝哇口颊片的释放度。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！