methylene

简明释义

英[ˈmeθɪˌliːn]美[ˈmeθɪlɪn]

n. [有化] 亚甲基；甲叉

英英释义

单词用法

同义词

反义词

例句

1.Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.

主营甲醇，乙醇，乙二醇，丙酮，二氯乙烷，二氯甲烷，二乙二醇。

2.Granularity, methylene blue decolorization rate, iodine value according to customer's requirements.

粒度，亚甲蓝脱色率，碘值可根据客户的要求生产。

3.Bengoyl leuco methylene blue is prepared from methylene blue by reduction and acylation.

介绍了以亚甲基蓝为原料，经还原、酰化生成苯甲酰无色亚甲基蓝的方法。

4.The genetic polymorphisms due to mutations in the methylene tetrahydrofolate reductase gene may increase the risk for NTDs.

亚甲基四氢叶酸还原酶基因突变导致的遗传多态现象可增加神经管缺陷(ntd)发生的危险性。

5.He had in fact intentionally used crystal methylene.

事实上，他曾刻意服用晶体甲基。

6.The rate of decomposition was not affected by methylene blue and ethanol.

亚甲蓝和乙醇不影响过亚硝酸根的分解速率。

7.The chemical reaction requires the addition of methylene 亚甲基 to produce the desired compound.

该化学反应需要加入亚甲基以生成所需的化合物。

8.Researchers used methylene 亚甲基 blue as a dye in their experiments.

研究人员在实验中使用了亚甲基蓝作为染料。

9.In organic chemistry, methylene 亚甲基 groups are often involved in various reactions.

在有机化学中，亚甲基基团常常参与各种反应。

10.The synthesis of the drug involved the use of methylene 亚甲基 derivatives.

该药物的合成涉及使用亚甲基衍生物。

11.To study the properties of polymers, scientists examined methylene 亚甲基-linked structures.

为了研究聚合物的性质，科学家们检查了亚甲基连接的结构。

作文

Methylene is a term that refers to a specific chemical group in organic chemistry. It is represented by the formula -CH2-, which indicates that it consists of one carbon atom bonded to two hydrogen atoms. This simple yet versatile structure plays a crucial role in the formation of various organic compounds. Understanding the significance of methylene (亚甲基) is essential for anyone studying chemistry, as it serves as a building block for more complex molecules. In organic synthesis, methylene (亚甲基) groups are often involved in reactions that lead to the creation of larger and more intricate structures. For example, when methylene groups are introduced into a molecule, they can affect the compound's reactivity, stability, and overall properties. This makes methylene (亚甲基) an important component in pharmaceuticals, agrochemicals, and polymers. One of the most notable reactions involving methylene (亚甲基) is the formation of methylene bridges in polymer chemistry. These bridges can enhance the mechanical properties of materials, making them stronger and more durable. For instance, in the production of epoxy resins, methylene (亚甲基) linkages contribute to the cross-linking process, resulting in a solid and heat-resistant final product. Moreover, methylene (亚甲基) is also significant in biological systems. In biochemistry, it is found in important molecules such as amino acids and nucleotides. The presence of methylene (亚甲基) groups in these biomolecules can influence their function and interactions with other cellular components. For instance, the methylene group can participate in enzyme-catalyzed reactions, playing a vital role in metabolic pathways. Furthermore, the study of methylene (亚甲基) is not limited to its chemical properties; it also extends to its environmental impact. For example, certain compounds containing methylene (亚甲基) groups can be pollutants, leading to concerns about their effects on ecosystems and human health. Understanding these implications is crucial for developing strategies to mitigate environmental damage caused by synthetic chemicals. In conclusion, methylene (亚甲基) is a fundamental concept in both organic chemistry and biochemistry. Its presence in various compounds highlights its importance in scientific research and industrial applications. By studying methylene (亚甲基), chemists and biochemists can unlock new pathways for innovation, leading to advancements in medicine, materials science, and environmental sustainability. As we continue to explore the complexities of molecular structures, the role of methylene (亚甲基) will undoubtedly remain a focal point in our understanding of chemistry and biology.

亚甲基是指有机化学中一个特定的化学基团。它的化学式为-CH2-，表示它由一个碳原子与两个氢原子结合而成。这个简单而又多功能的结构在各种有机化合物的形成中起着至关重要的作用。理解methylene（亚甲基）的意义对于任何学习化学的人来说都是必不可少的，因为它作为更复杂分子的构建块。 在有机合成中，methylene（亚甲基）基团通常参与导致更大、更复杂结构形成的反应。例如，当将亚甲基基团引入分子时，它们可能会影响化合物的反应性、稳定性和整体性质。这使得methylene（亚甲基）成为药物、农用化学品和聚合物中的重要组成部分。 涉及methylene（亚甲基）的最显著反应之一是在聚合物化学中形成亚甲基桥。这些桥接可以增强材料的机械性能，使其更强大、更耐用。例如，在环氧树脂的生产中，methylene（亚甲基）链接有助于交联过程，从而产生一种固体且耐热的最终产品。 此外，methylene（亚甲基）在生物系统中也具有重要意义。在生物化学中，它存在于氨基酸和核苷酸等重要分子中。这些生物分子中存在的methylene（亚甲基）基团可以影响它们的功能及与其他细胞组分的相互作用。例如，亚甲基基团可以参与酶催化反应，在代谢途径中发挥重要作用。 此外，对methylene（亚甲基）的研究不仅限于其化学性质；它还扩展到其环境影响。例如，某些含有methylene（亚甲基）基团的化合物可能成为污染物，导致人们对其对生态系统和人类健康的影响产生担忧。理解这些影响对于制定减轻合成化学品造成的环境损害的策略至关重要。 总之，methylene（亚甲基）是有机化学和生物化学中的基本概念。它在各种化合物中的存在突显了它在科学研究和工业应用中的重要性。通过研究methylene（亚甲基），化学家和生物化学家可以开启创新的新途径，推动医学、材料科学和环境可持续发展的进步。随着我们继续探索分子结构的复杂性，methylene（亚甲基）的角色无疑将继续成为我们理解化学和生物学的焦点。