There are many active hydroxyl groups on carbohydrates.
糖中含有多个活泼的羟基。
Both the free hydroxyl groups readily undergo esterification.
两个自由羟基，都容易酯化。
Hydroxyl groups on the filter medium are substituted to other functional groups.
将过滤介质上的羟基取代为其它官能团。
The hydroxyl groups can be changed into esters, ethers, acetals and ketals, etc.
最常用的羟基保护基可归纳为三类：酯类、醚类和缩醛或缩酮类。
The foam was prepared through a reaction of the hydroxyl groups with diisocyanate.
聚胺酯泡沫通过多羟基化合物上的羟基和二异氰酸酯反应形成。
Methylol groups react with the hydroxyl groups of the cellulose to form stable ether linkage.
甲氧基基团可以和纤维素上的羟基反应形成稳定的醚键。
Both the additive products contain hydroxyl groups, so possess substantial hydrophilic property.
加成产物都含有羟基，因此都有一定的亲水性。
The hard resin was formed by polymerization of the soft resin in the presence of hydroxyl groups.
紫胶硬树脂由软树脂多聚而成，该聚合过程以树脂的羟基参与反应为特征。
Aliphatic polyesters have better moisture resistance than starches, which have many hydroxyl groups.
脂肪族聚酯具有更好的淀粉，其中有许多羟基防潮。
Its molecular structure is made up of a five member, unsaturated lactone ring with two hydroxyl groups.
其分子结构是由五个成员国，不饱和内酯环两个羟基。
When hydroxyl groups in VER were not metered, the elastomers presented two glass-transition temperatures.
不计量VER中的仲羟基时，所合成的PU/VER表现为两个玻璃化转变温度。
Addition of the compounds with hydroxyl groups and a tendency of coordination will accelerate the degradation.
添加有配位倾向的含羟基的化合物会加快破胶过程。
It is made of organic diisocyanate or polyisocyanate with two hydroxyl groups or polyhydroxy compounds together with.
它是由有机二异氰酸酯或多异氰酸酯与二羟基或多羟基化合物加聚而成。
The oxygen atoms that coordinated with yttrium were offered by both carboxyl and hydroxyl groups of deoxycholic acid.
脱氧胆酸中羧基氧原子、羟基氧原子均与钇发生配位作用。
The hydroxyl groups of epoxy acrylate (AAEP) in VER were sealed with different methods in order to obtain modified VER.
采用不同的方法对乙烯基酯树脂(ver)中环氧丙烯酸酯(AAEP)进行羟基封闭，制备改性ver。
In nonionic detergents, hydrophilicity is based on the presence of multiple hydroxyl groups or other hydrophilic groups.
在非离子洗涤剂中，亲水性是基于多羟群和其它亲水残余物的存在而产生。
The phenylated silica gel has been prepared by the reaction between the surface hydroxyl groups of silica gel and phenyl trichlorosilane.
本文利用苯基三氯硅烷和硅胶表面羟基反应制备了苯基化硅胶。
This was attributed to the loss of water of hydration as well as the condensation of structural hydroxyl groups with increasing temperature.
其原因为随着温度的升高，附着水排出和羟基结构的缩合。
The esterified white carbon has been prepared by the reaction between the surface hydroxyl groups of white carbon and n-heptanol or n-octanol.
本文利用正庚醇或正辛醇与白炭黑表面羟基反应制备了酯化白炭黑。
Timber swells when it is damp and shrinks when it is dry because it contains groups of atoms called hydroxyl groups, which absorb and release water.
木材在潮湿的时候就会膨胀，而干燥的时候会缩小，这取决于其中含有的氢氧基团，它可以吸收和释放水分。
An epoxide group and an out-ring double-bond are attached to the 11-membered ring. The molecule contains one primary and two tertiary hydroxyl groups.
十一员环上带有一个环氧基和一个环外双键，分子中含有两个叔羟基和一个伯羟基。
The diaphragm consists of a network of polymer fibres bound to a hydrophilic ceramic material containing zirconium chemically bound to hydroxyl groups.
该隔膜由与亲水性陶瓷材料结合的聚合物纤维的网络构成，该亲水性陶瓷材料含有与羟基化学结合的锆。
The results showed that hydroxyl groups of H3BO3 reacted with the hydroxyl groups of fir powder, and thus the crystalline phase of cellulose was destroyed.
研究表明，H3BO3与杉木粉中的羟基发生了缩合反应，纤维素的结晶被破坏；
This is due to the phenylation of surface hydroxyl groups of hydrophilic Silica gel and the destruction of organized layers of phenylated Silica gel respectively.
这分别是由于亲水硅胶表面羟基的苯基化作用以及苯基化硅胶的有机化层的破坏所致。
This paper has prepared the polyurethane dispersions with hydroxyl groups, paying attention on the relation of structure and properties of waterborne dispersions.
本文研究目的是制备出聚氨酯多元醇水分散体，重点讨论水分散体结构与性能之间的关系。
The results indicated that the range of optimization amounts of hydroxysilicone oil which condensed with hydroxyl groups onto the surface of gas-phase foam silica.
结果表明，在硅橡胶混炼过程中，接到硅橡胶主链上的羟基硅油甚少，大部分接到白炭黑表面上；
Therefore, in this paper the infrared spectroscopy (IR) technology is used to study the skeleton structure, hydroxyl groups and surface acidity of the low-cost TS-1.
为此，本文利用红外光谱法研究了用廉价法合成的TS - 1的骨架结构、羟基和酸性。
It was found that the two hydroxyl groups on C9,10 of aleuritic acid were in cross position. The molecular structure of shellolic acid was confirmed by modern spectrometry.
发现国产紫胶中，紫胶桐酸C_（9、10）上的二个羟基处于交叉位，用现代光谱学手段证实了前人用化学方法推测的壳脑酸分子结构。
Chitosan can be modified chemically, due to the existence of amino and hydroxyl groups, and both chitosan and its derivatives can be used as adsorbents for heavy metal ions.
壳聚糖分子中含有大量的氨基和羟基，可以进行多种化学改性，得到相应的衍生物。
Compared with polyethylene as a standard sample, GAP has higher surface free energy because there are many hydroxyl groups and azide group in the surface of the GAP molecule.
与聚乙烯相比，GAP的总表面的自由能较高，这主要是因为GAP表面含有羟基和叠氮基团。
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