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- A new type of azacrown ether crosslinked chitosan was synthesized by reaction of chitosan with dihydroxy mesocyclic diamine activated by epoxidation. 以壳聚糖为原料，与经环氧活化的双羟基中环二胺反应，制备了一种新型的氮杂冠醚交联壳聚糖。
- The classifications,synthesis,and application of the open chain azacrown ether compounds and their analogues have been reviewed in this paper. 从分类、合成及应用等方面概述了近年来氮杂冠醚及其类似物的研究进展。
- The parent azacrown ether 1,10-dioxa-4,7,13,16-tetraaza-18crown-6(L1) and its two acetic ether armed-derivatives(L2 and L3) were synthesized and characterized. 合成和表征了1,10-二氧-4,7,13,16-四氮杂18-冠-6(L1)母体及其两种乙酸乙酯臂式衍生物(L2,L3)。
- Synthesis and properties of novel azacrown ether resin 新型氮杂冠醚树脂的合成与吸附性能研究
- In this paper we prepared a series of azacrown ethers with side chains of tropone rings and their derivatives by the reactivity of seven-membered aromatic tropone rings. 本文利用七元芳香卓酮环的反应活性，合成出了一系列以卓酮环及其衍生物为侧臂的氮杂冠醚。
- Keywords tricyclic structure;azacrown ether;lanthanid;complexes;syntheses; 三环结构;氮杂冠醚;稀土配合物;合成;
- Keywords tricyclic azacrown ether;carboxylic acid derivative;crystal structure; 三环氮杂冠醚;羧酸衍生物;晶体结构;
- Keywords azacrown ether;Schiff's base macrocyclic complex;template synthesis; 氮杂冠醚;西佛碱大环配合物;模板合成;
- Keywords azacrown ether;lanthanide complex;synthesis;characterization; 氮杂冠醚;镧系配合物;合成;表征;
- A bright red welt rose on his arm. 他的手臂上起了明显的条状红肿。
- He hold on to my arm with a tenacious grip. 他紧紧抓住我的手臂不放。
- The combined fleet is armed to the teeth. 这支联合舰队全副武装。
- A whiff of ether will put you out in a few seconds. 一剂乙醚几秒钟后就会使你失去知觉。
- He was sent down for ten years for armed robbery. 他因持械抢劫被判入狱十年。
- I felt something crawling up my arm. 我感觉到有什么东西爬上我的手臂。
- The falling slate sliced into his arm. 落下来的一块石片划破了他的手臂。
- Synthesis and characterization of azacrown ether containing sulfur ring and its transition metal complexes 硫氮杂冠醚大环配体及其过渡金属配合物的合成与表征
- She had a dilly of a bruise on her arm. 她手臂上有一块显眼的伤痕。
- Our fighter planes are all armed with cannon. 我们的战斗机都装备了机关炮。
- The new battle ship will be armed with16 inch guns. 那艘新的主力舰将配备口径16英寸的大炮。
