不饱和度

作为注射用辅料，泊洛沙姆188在平均分子量，不饱和度，以及游离EO、PO、二恶烷和有机挥发物上比口服辅料有更高的质量要求；

Poloxamer 188 for injectable formulations has higher quality criteria than for oral formulations in average molecular weight , degree of unsaturation , limit of free ethylene oxide , propylene oxide , 1,4-dioxane and organic volatile impurities .

其极限扩散电流密度与本文中定义的碘的未饱和度△m（I2），max成正比，后者是一个与通常所指的碘的不饱和度在意义和数值上都不相同的物理量。

The diffusion limiting current densities are directly proportional to the △ m_ ( I2 , max ), which is defined as unsaturated extent of iodine , and it is different in the definition and the value from the usual degree of unsaturation of iodine in the electrolyte solution .

用BASIC程序从分子组成计算分子式与不饱和度

A Basic program Used for Calculating Molecular Formula and Double Bond Equivalents by Molecular Compostions

低不饱和度聚醚PU弹性体力学性能的研究

Study on Mechanical Property of Polyurethane Elastomer Based on Low Unsaturated Polypropylene Glycol

低不饱和度聚醚多元醇PU弹性体性能的影响因素

Preparation of PU elastomer with low unsaturated polyether polyols

介绍了使用DMC催化剂生产低不饱和度聚醚时存在的问题。

The problems in production of low unsaturation polyether with DMC catalyst were introduced .

Arrhenius分析证明，VDE对低温和膜脂不饱和度都敏感。

Arrhenius analysis showed that VDE was sensitive to both chilling and unsaturation level of thylakoid membrane lipids .

结果表明：铵离子对GLA合成中脂肪酸△6-脱氢、不饱和度和碳链延长有明显的影响；

The results showed that ammonium obviously affected fatty acid △ 6 - desaturation , unsaturated degree and carbon chain elongation with the production of GLA ;

采用双金属络合催化剂（DMC）制备具有极低的不饱和度、相对分子量高、分子量分布窄、平均官能度高等特点的新型聚醚多元醇。

In this paper , a double-metal cyanide complex catalyst ( DMC ) was used to prepare a new polyether polyol with very low unsaturation , high equivalent molecula weight , narrow molecular weight distributing , high average functionality , etc.

研究了以不同相对分子质量的低不饱和度聚醚多元醇、二异氰酸酯（MDI，TDI）和扩链剂（1,4BDO，MOCA）为原料制备PU弹性体的力学性能。

Polyurethane ( PU ) elastomers based on low unsaturated polypropylene glycol ( TDB ), diisocyanate ( MDI or TDI ) and chain extender ( 1,4-BDO or MOCA ) were prepared . The mechanical properties of PU elastomers were studied .

叶绿素，可溶性蛋白，类囊体膜脂脂肪酸不饱和度和紫黄质脱环氧化酶（VDE）蛋白量在衰老过程中逐渐下降。

Besides , chlorophyll content , soluble protein , thylakoid membrane lipids fatty acid instauration and activity of Violaxanthin de-epoxidase ( VDE ) were all decreased with the progress of senescence .

结果表明，停留时间在2min以内时其门尼黏度和不饱和度急剧下降，超过2min后的变化不大；

The results showed that the Mooney viscosity and the unsaturated degree decreased greatly with time in 2 min , but decreased slightly with time beyond 2 min ;

最近，开环移位聚合（ROMP）由于具有单体在聚合后，仍可保留链骨架中的不饱和度这一特点，而日益受到关注。

Recently , ring-opening metathesis polymerization ( ROMP ) has emerged as a important polymerization , because the polymerization has the characteristics that it may still retain the unsaturated degree of chain of the monomer after the polymerization .

苜蓿根颈中脂肪酸不饱和度、不饱和脂肪酸与饱和脂肪酸含量比值、脂肪酸不饱和指数（IUFA）均与温度呈显著负相关或极显著负相关。

The degree of unsaturated fatty acids , the ratio of unsaturated fatty acids and saturated fatty acid , the index of unsaturated fatty acid ( IUFA ) in the rootstalk of alfalfa were significantly negatively or very significantly negatively correlated with temperature .

在15mg添加水平，按照微晶纤维素粉消失率从小到大的顺序排列，4种植物油处理的顺序为：亚麻油、豆油、棉籽油和菜籽油，与不饱和度顺序一致。

At the adding level of 15 mg , four oil treatment were ranked as linseed oil , soybean oil , cottonseed oil and canola oil according to the disappearance of cellulose powder from low to high , the same as unsaturation sequence of these four oils .

它具有极低的不饱和度和很高的相对分子质量。

The polyether has very low unsaturation and high equivalent weight .

低不饱和度聚醚多元醇及其催化剂的制备工艺

Preparation Processes for the Catalysts and Low - unsaturation Polyether Polyols

不饱和度公式的推导及其在仪器分析中的应用

Ratiocination of Instauration Number Formula and Its Application in Instrument Analysis

由分子的不饱和度判断中心原子的杂化类型

Method of Judging the Hybridization Form of Central Atomic Orbital by Unsaturation

近红外光谱法测定端羟基聚丁二烯不饱和度分布

Determination of Unsaturation Distribution for Hydroxyl-Terminated Polybutadiene by Means of Near-Infrared Spectroscopy

低不饱和度聚醚多元醇伯羟基含量的提高

Increase of Content of Primary Hydroxyl Groups of Polyether Polyols with Low Unsaturation

酯交换条件对微生物柴油的不饱和度的影响

Effect of Transesterification Conditions on Unsaturation Degree of Micro-biodiesel

低不饱和度聚醚在软泡中的应用研究

Study on the Application of Low Unsaturated Degree Polyether Polyols in Flexible Slabstock Foams

低不饱和度聚醚多元醇制备聚氨酯弹性体

Polyurethane Elastomer Prepared with Lower Unsaturation Polyether Polyols

对高活性低不饱和度聚醚多元醇的精制进行了研究。

A process of purifying polyether polyols with high activity and low unsaturated degree was studied .

脂肪酸不饱和度的增加对转基因拟南芥植株生理及抗盐抗低温的影响

Effects of Increase of Unsaturation of Fatty Acids on Salt and Cold Tolerance in Transgenic Arabidopsis Thaliana

聚合工艺对低不饱和度高相对分子质量聚醚性能的影响

The Effect of Polymerization Process on Properties of Polyether of Low Unsaturation Degree and High Molecular Weight

抗旱大豆叶线粒体膜脂的总脂肪酸不饱和度，显著低于不抗旱大豆。

The UIFA from mitochondria membrane lipid in drought resistant soybean leaf cell was lower than susceptable soybean .

仅从分子式，我们就能推断分子中的不饱和度。

From the molecular formula alone , we can deduce the " degrees of unsaturation " in the molecule .

阐述了有机化学中不饱和度的概念，并对其计算作了详尽的介绍。

The concept and calculation of degrees of unsaturation in organic chemistry are discussed in detail in this paper .