chain length

简明释义

测链(英制长度单位

英英释义

例句

1.A longer chain length (链长) typically results in higher tensile strength in fibers.

较长的chain length (链长)通常会导致纤维的抗拉强度提高。

2.When synthesizing the drug, we must carefully control the chain length (链长) of the active ingredient.

在合成药物时，我们必须仔细控制活性成分的chain length (链长)。

3.The chain length (链长) of fatty acids determines their melting points.

脂肪酸的chain length (链长)决定了它们的熔点。

4.The polymer's properties can be significantly altered by changing the chain length (链长).

通过改变chain length (链长)，聚合物的性质可以显著改变。

5.In this experiment, we will analyze how the chain length (链长) affects the viscosity of the solution.

在这个实验中，我们将分析chain length (链长)如何影响溶液的粘度。

作文

In the field of chemistry, the term chain length refers to the number of atoms in a linear molecule or polymer chain. Understanding chain length is crucial because it significantly influences the physical and chemical properties of substances. For instance, in organic chemistry, the chain length of hydrocarbons determines their boiling points, melting points, and solubility. Longer chains tend to have higher boiling points due to increased van der Waals forces between molecules. This concept is particularly important when studying the behavior of different fuels, as longer-chain hydrocarbons generally provide more energy when combusted.Moreover, chain length plays a critical role in biochemistry, especially in the structure and function of fatty acids and lipids. Fatty acids can vary in chain length, affecting their melting points and their ability to form membranes. Saturated fatty acids with longer chain lengths are solid at room temperature, while unsaturated fatty acids with shorter chain lengths are typically liquid. This property is vital in biological systems, as the composition of cell membranes influences fluidity and permeability.In addition to chemistry and biochemistry, chain length is also relevant in materials science. Polymers, which are long chains of repeating units, exhibit different mechanical properties depending on their chain length. For example, polyethylene with a high chain length is stronger and more durable than its low chain length counterpart. This understanding allows scientists and engineers to tailor materials for specific applications, such as creating flexible plastics or rigid composites.Furthermore, the concept of chain length extends beyond the natural sciences into various industries. In the food industry, for instance, the chain length of carbohydrates affects their digestibility and sweetness. Short-chain carbohydrates, like sugars, are quickly absorbed by the body, while long-chain carbohydrates, such as starch, require more time to break down. This knowledge is essential for nutritionists when designing diets that balance energy release and satiety.In summary, the term chain length is a fundamental concept that spans multiple disciplines. From chemistry to biochemistry and materials science, the implications of chain length are profound. It affects the properties of hydrocarbons, fatty acids, polymers, and even carbohydrates, influencing everything from energy production to material strength and nutritional value. As we continue to explore and manipulate chain length in various contexts, our understanding of its significance will only deepen, paving the way for innovations in science and technology.

在化学领域，术语链长指的是线性分子或聚合物链中原子的数量。理解链长至关重要，因为它显著影响物质的物理和化学性质。例如，在有机化学中，烃的链长决定了它们的沸点、熔点和溶解度。较长的链由于分子间范德华力的增加，通常具有更高的沸点。这个概念在研究不同燃料的行为时尤为重要，因为较长链的烃在燃烧时通常提供更多的能量。此外，链长在生物化学中也发挥着关键作用，特别是在脂肪酸和脂质的结构与功能中。脂肪酸可以在链长上有所不同，这会影响它们的熔点和形成膜的能力。具有较长链长的饱和脂肪酸在室温下呈固态，而具有较短链长的不饱和脂肪酸通常呈液态。这一特性在生物系统中至关重要，因为细胞膜的组成会影响流动性和通透性。除了化学和生物化学，链长在材料科学中也相关。聚合物是由重复单元组成的长链，其机械性能根据链长的不同而有所不同。例如，高链长的聚乙烯比低链长的聚乙烯更强韧、更耐用。这种理解使得科学家和工程师能够为特定应用量身定制材料，例如创造柔性塑料或刚性复合材料。此外，链长的概念超越了自然科学，延伸到各个行业。在食品工业中，例如，碳水化合物的链长影响其消化性和甜度。短链碳水化合物，如糖，迅速被身体吸收，而长链碳水化合物，如淀粉，则需要更多时间才能分解。这一知识对于营养师设计平衡能量释放和饱腹感的饮食至关重要。总之，术语链长是一个跨越多个学科的基本概念。从化学到生物化学和材料科学，链长的影响深远。它影响烃、脂肪酸、聚合物甚至碳水化合物的性质，影响从能量生产到材料强度和营养价值的一切。随着我们继续探索和操控不同背景下的链长，我们对其重要性的理解将愈加深入，为科学和技术的创新铺平道路。