酸基

Main component of composition of the negative type photoresistive agent is polyimide, which possesses pendent -COOH. Reaction between partial carboxylic acid group and monomer with glycidyl acrylate generates bond junction. Rudimental other part of carboxylic acid group and additional additive component with third amino group and monomer of C=C double bond forms ionic bond junction.

本发明的负型光阻剂组合物的一主要成份为聚亚酰胺其具有悬垂的-COOH且部分的羧酸基与带有环氧基团的丙烯酸酯单体glycidyl(methacrylate反应形成键结，而残留的另一部分羧酸基与另外添加的成份带有第三胺基及C＝C双键的单体形成离子键结。

Any of a group of five chemically related nonmetallic elements including fluorine, chlorine, bromine, iodine, and astatine.

酰亚胺源自氨的一种化合物，含有与一个二价酸基或者二个一价的酸基结合的氨基

ABSTRACT Agent TJ-201 is an organic phosphonocarboxylic acid containing maleic group, p hosphonic group, and ethoxyl group etc.

摘 要 TJ-201是一种含马来酸基、磷酸亚基、氧乙烯基等的膦基聚羧酸。

In the second part of the thesis, we developed a very effective assay for the sulfotransferase that catalyzes the sulfation of serine and threonine. It utilized PAPS regenerated from 3-phosphoadenosine 5-phosphate by a recombinant PST using 4-methylumbelliferyl sulfate as the sulfuryl group donor. The change in the fluorescence intensity of 4-methylumbelliferone corresponded directly to the amount of active protein sulfotransferase.

第二部份则是探讨蛋白质亚硫酸转移酵素的活性检测方法，检测系统的主旨是用重组的PST催化受质4-methylumbelliferyl sulfate做为亚酸基提供者并转移至3'-phosphoadenosine 5'-phosphate再生PAPS ，此核苷酸的亚酸基再由蛋白质亚硫酸转移酵素催化，反应后所产生的4-methylumbelliferone之萤光变化可用来定量蛋白质亚硫酸转移酵素的活性。

It indicates that sulfonic acid group can significantly inhibit the activity of thrombin.

研究表明多种基团，特别是磺酸基团对凝血酶有良好的抑制作用，凝血酶原可能受甲氧基和磺酸基的协同影响。

The introduces binaphthyl bisphenol monomer on side-chain benzene ring of sulfonic group on molecular level, prepares sulfonated poly aryl ether with sulfonic group only on naphthalene ring of side chain, so that ensures chemical stability of main chain with high molecular weight, while having no influence on mechanical property thereof.

本发明从分子水平出发，将磺酸基在侧链苯环上的联萘双酚单体引入，制备仅在侧链苯环上有磺酸基的磺化聚芳醚，从而保证了高分子主链的化学稳定性，且不会影响其优异的物理机械性能。

A salt or ester of carbamic acid, especially one used as an insecticide.

丙烯酰胺、甲代烯丙基磺酸钠等为原料，采用溶液聚合法合成出兼含膦酰基和磺酸基的四元聚合阻垢剂PMAAS，。。。

Starting from the hydroxylamine (dimethyl amino ethanol, triethanolamine) and 1, 3-propane sultone, a series of hydroxyl and sulfonyl dual-functionalized zwitterionic salts were synthesized. Then dual-functionalized ionic liquids containing both hydroxyl and sulfonyl functional groups were produced successfully by zwitterionic salts and three kinds of strong acids (p-toluene sulfonic acid, trifluoromethanesulfonic acid, methanesulfonic acid) respectively. The structure of zwitterionic salts and dual-functional ionic liquids were confirmed by the 1H NMR and IR.

以羟基有机胺(N，N-二甲基乙醇胺，三乙醇胺)为原料与1，3-磺酸内酯反应合成了一系列含有羟基和磺酸基双官能团的内盐，并将所得到的内盐分别与三种强酸(对甲苯磺酸，三氟磺酸，甲磺酸)反应，成功地合成了双功能化室温离子液体，并通过红外光谱、核磁氢谱测定，证实了内盐和双功能化离子液体的结构。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

Thermotropic main-chain liquid crystalline ionomers containing sulfornate groups was synthesized with liquid crystalline polymer and hydroxyl-azobenzensulfonic acid.

采用溶液缩聚法将活性端基为TPC的液晶聚合物与对羟基偶氮苯磺酸反应制得端基为磺酸基的遥爪主链液晶离聚物。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。