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- free amine group 游离氨基
- The detection of 2-methylcyclohexane in the HDN of MCHA explains the C(sp3)-N bond cleavage showing that MCH is formed via nucleophilic substitution of the amine group of MCHA. 通过检测MCHA中的甲基环己烷(MCH)，解释C(sp~3)-N键断裂是由于MCHA中的胺基被亲核取代。
- The paper introduced the potential titrating method and color imetric titrating method,that were used to measure content of accelerator-sulfenamine and free amine. 阐述了指示剂滴定法测定次磺酰胺类促进剂纯度过程中影响测定结果准确性的两个因素:游离胺含量和硫基苯骈噻唑纯度。
- A multifunctional active diluent with photosensitivity promotion was prepared from incorporating aliphatic amine group into 1,1,1-trimethylolpropane triacrylate. 通过控制反应条件,在三羟甲基丙烷三丙烯酸酯中引入脂肪胺,合成具有光敏增感作用的活性稀释剂。
- Since the amine group on the chain can act as chelation sites for metal ions, chitosan has already been described as a suitable natural polymer for the collection of heavy-metal ions. 在壳聚糖分子结构中存在大量游离氨基和羟基,是一种新型的配位体或螯合剂,主要用于捕集有毒重金属离子。
- The library was purified by resins containing isocyanate or amine group to scavenge the excess amines or isocyanates. 按组合化学中的“索引”方法，此化合物库分为10个子库。
- The cellulose nitrate containing secondary amine group(ACN) was prepared by one-pot method in two steps: etherification and amination. 以硝化纤维素为原料,经一锅法醚化和胺化2步反应合成了仲胺型硝化纤维素(ACN)。
- Polyoxyethylene glycols containing tertiary amine groups were synthesizedwith different amine initiators. 以胺类化合物为起始剂，制备了几种含叔胺基的聚氧化乙烯二醇。
- Finally, the remaining amine groups are acetylated to ensure that the complex particles do not bear any surface charges. 最后，科学家将剩余的氨基进行乙酰化，这保证了复杂粒子不会受到表面电荷影响。
- a molecule containing one amine group 一个分子含有一个胺原子团
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Because chitosan possesses in its structure highly reactive primary amine groups, the functional properties of chitosan fibers could he modified by applying various treatments to the fiber structure. 由于甲壳胺的分子结构中有反应活性很高的氨基，通过对氨基的化学改性可以得到具有特殊功能的改性甲壳胺纤维。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Because chitosan possesses in its structure highly reactive primary amine groups, the functional properties of chitosan fibers could be modified by applying various treatments to the fiber structure. 由于甲壳胺的分子结构中有反应活性很高的氨基,通过对氨基的化学改性可以得到具有特殊功能的改性甲壳胺纤维。
- Benzofurazans are commonly used to label amine groups when a strong environmental sensitivity is required, although the fluorescence quantum yields of amine adducts in water are quite low. 尽管在水中荧光量子的产量很低，但当使用强的环境灵敏的研究时苯并呋咱是常用的标记氨基团。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- Poly (amido amine) dendrimer (PAMAM) have been widely studied and applied in chemistry and biology field due to their good biocompatibility and many amine groups available at periphery. 树枝状聚酰胺胺（PAMAM）由于其优良的生物相容性和大量的可反应的末端基团，成为化学和生物学中重要的试剂。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Now that I am free, I can enjoy music for a while. 既然有空，我可以享受一下音乐。
