催化剂可以分为两种:过渡金属双官能催化剂和过渡金属的碳氧化物催化剂。
The catalysts can divide into two kinds: the transition metal bifunctional catalysts and oxycarbide catalysts of transition metals.
本发明与端双羟基官能化遥爪聚合物的制备方法有关。
This invention relates to a method for preparing dihydroxyl-terminated telechelic polymer.
这样一种方法对于制备双官能单体和合成己二酸的中间体特别有用。
Such a process is particularly useful in the production of difunctional monomers and intermediates in the synthesis of adipic acid.
本文提出了双稠哌啶类生物碱对松材线虫的杀线活性强弱主要受其分子结构中官能团对的类型及其中的官能团的类型控制的假说。
A hypothesis that nematicidal activity of quinolizidine alkaloids is mainly determined by types of functional group pair and types of functional group in their molecular structures was proposed.
最近引进的采用双官能抗体和小分子的半抗原的两步法在一定程度上满足了这个要求。
A recently introduced approach satisfies this requirement to some extent: the use of low molecular weight haptens with bifunctional antibodies.
文章以双官能团活性染料上染大豆蛋白纤维为例,对超声波在染色中的应用进行了研究。
The application of ultrasonic wave to dyeing soybean fiber is studied with the example of bifunctional reactive dyes.
用对甲苯磺酸酸式水解烃羧酸甲酯基和烃羧酸高碳醇酯基双官能基硅油,并和碱性水解的效果比较。
The modified silicone was hydrolysed by toluene-p-sulfonic acid, and the hydrolysis ratios in acid and base were compared.
具有NK - 2拮抗作用的含有四个双官能基团的单环类化合物,其制法,药物组合物及用途。
Monocyclic compounds with four bifunctional residues having NK-2 antagonist action, its preparation, medicine compositions and USES.
包含所述双核过渡金属化合物的催化剂组合物对于含有极性官能团的单体活性高。
A catalyst composition including the dinuclear transition metal compound is highly active for a monomer having a polar functional group.
本发明描述了三官能双特异性抗体用于制备用来预防和治疗肿瘤疾病的药物组合物的应用。
The present invention describes the use of trifunctional bispecific antibodies for the preparation of a pharmaceutical composition for the prophylaxis and treatment of tumor diseases.
用天然氨基酸为起始材料,合成了一种具有双酚羟基官能团的环肽,并以此环肽为联酚合成了主链包含酰胺键的可生物降解环氧树脂。
Starting from natural amino acid, diphenol having a phenolic hydroxyl group was synthesized. Using the diphenole as comonomer, a biodegradable epoxy resin in which contain amide group.
用密度泛函理论在B3LYP/6-31G(d)水平上研究了双官能团硫脲催化丙交酯开环聚合反应的微观机理。
The Ring-opening polymerization(ROP) of D-lactide(D-LA) catalyzed by bifunctional thiourea catalyst has been studied by performing density functional theory calculations at the B3LYP/6-31G(d) level.
本发明涉及一种端双羟基官能化的遥爪聚合物及其制备方法,其特征在于采用了易水 解离去的硅烷保护基团保护的引发剂。
This invention relates to a method for preparing dihydroxyl-terminated telechelic polymer. The method uses an initiator that can be easily hydrolyzed and is protected by silicane protective groups.
本发明涉及一种端双羟基官能化的遥爪聚合物及其制备方法,其特征在于采用了易水 解离去的硅烷保护基团保护的引发剂。
This invention relates to a method for preparing dihydroxyl-terminated telechelic polymer. The method uses an initiator that can be easily hydrolyzed and is protected by silicane protective groups.
应用推荐