polydisperse

简明释义

英[ˌpɑlɪˈdɪspɜrs]美[ˌpɑlɪˈdɪspɜrs]

adj. 多分散的

英英释义

单词用法

同义词

反义词

例句

1.The filtration characteristics of monodisperse and polydisperse aerosols are studied experimentally with engineering material, such as sand and clay.

在实验的基础上，研究了沙子、粘土等工程材料对单分散和多分散气溶胶的过滤特性。

2.A new formula was suggested to express the concentration-dependence of dilute solution viscosity of polydisperse polymer.

最后得到一个新的多分散高分子的稀溶液粘度与浓度的关系式。

3.The filtration characteristics of monodisperse and polydisperse aerosols are studied experimentally with engineering material, such as sand and clay.

在实验的基础上，研究了沙子、粘土等工程材料对单分散和多分散气溶胶的过滤特性。

4.The special function expansion method was applied to solve the sedimentation problem of polydisperse colloid system.

特殊函数展开法被用于解决多分散具势悬浮体系中粒子的沉降问题。

5.A self-consistent field theory (SCFT) for polydisperse polymers grafted to a surface was developed.

建立了表面接枝多分散聚合物的自洽场理论。

6.The sample exhibited a polydisperse size distribution, indicating that it contained particles of various sizes.

该样本表现出多分散的粒径分布，表明它包含不同尺寸的颗粒。

7.In polymer science, materials are often described as polydisperse due to the varying molecular weights of the chains.

在聚合物科学中，由于链的分子量不同，材料通常被描述为多分散。

8.When analyzing the sediment, we found it to be polydisperse, complicating the interpretation of the results.

在分析沉积物时，我们发现它是多分散的，这使得结果的解释变得复杂。

9.The drug formulation was intentionally made polydisperse to enhance its bioavailability.

该药物配方故意设计为多分散以提高其生物利用度。

10.The polydisperse nature of the aerosol particles affects their behavior in the atmosphere.

气溶胶颗粒的多分散特性影响它们在大气中的行为。

作文

Polydisperse systems are prevalent in many fields, including chemistry, materials science, and biology. The term polydisperse refers to a mixture or system containing particles of varying sizes. This is in contrast to monodisperse systems, where all particles are of the same size. Understanding the implications of polydisperse systems is crucial for researchers and professionals who work with materials that do not exhibit uniformity in particle size.In the field of nanotechnology, for instance, polydisperse nanoparticles can have a significant impact on the properties of a material. When nanoparticles are synthesized, they often do not form uniformly sized particles. Instead, they can exhibit a range of sizes due to various factors such as the synthesis method, temperature, and concentration of precursors. This polydisperse nature can affect the optical, electrical, and mechanical properties of the resulting material. For example, in drug delivery applications, polydisperse nanoparticles may result in uneven distribution within the body, leading to variable therapeutic effects.Moreover, in polymer science, the concept of polydisperse molecular weight distributions is critical. Polymers are often produced with a range of molecular weights, which can influence their physical properties, such as viscosity and tensile strength. A polydisperse polymer sample may exhibit different behavior compared to a monodisperse one, affecting its processing and application. For instance, a polydisperse polymer blend might have improved mechanical properties due to the interaction between different molecular weights, allowing for enhanced performance in various applications.In environmental science, understanding polydisperse particulate matter is essential for assessing air quality and its effects on health. Particulate matter (PM) in the atmosphere is often polydisperse, consisting of particles of different sizes, shapes, and compositions. The health impacts of PM can vary significantly based on its size, with smaller particles penetrating deeper into the respiratory system. Therefore, studying polydisperse particulate matter is vital for developing effective regulations and strategies to mitigate air pollution.Additionally, in the context of colloidal systems, the stability and behavior of polydisperse colloids can differ from their monodisperse counterparts. The interactions between particles of different sizes can lead to unique phenomena such as phase separation or gelation. Understanding these behaviors is crucial for industries that rely on colloidal systems, such as food production and cosmetics.In conclusion, the concept of polydisperse is fundamental across various scientific disciplines. Whether it pertains to nanoparticles, polymers, environmental particles, or colloids, recognizing the implications of polydisperse systems is essential for advancing research and technology. As we continue to explore the complexities of materials and their behaviors, a thorough understanding of polydisperse systems will undoubtedly play a pivotal role in shaping future innovations and applications. Researchers must remain vigilant in characterizing and controlling the size distributions of particles to harness the full potential of polydisperse materials in practical applications.

Polydisperse 系统在化学、材料科学和生物学等多个领域中普遍存在。术语polydisperse指的是含有不同大小颗粒的混合物或系统。这与单分散（monodisperse）系统形成对比，后者所有颗粒的大小相同。理解polydisperse 系统的影响对于从事具有颗粒大小不均匀材料的研究人员和专业人士至关重要。例如，在纳米技术领域，polydisperse 纳米颗粒可能对材料的性质产生重大影响。当合成纳米颗粒时，它们通常不会形成均匀大小的颗粒。相反，由于合成方法、温度和前驱体浓度等各种因素，它们可能会表现出一系列的大小。这种polydisperse 特性可以影响所得到材料的光学、电气和机械性质。例如，在药物输送应用中，polydisperse 纳米颗粒可能导致在体内分布不均，从而导致治疗效果的变化。此外，在聚合物科学中，polydisperse 分子量分布的概念至关重要。聚合物通常以不同的分子量生产，这会影响其物理性质，如粘度和拉伸强度。与单分散样品相比，polydisperse 聚合物样品可能表现出不同的行为，从而影响其加工和应用。例如，polydisperse 聚合物混合物可能由于不同分子量之间的相互作用而具有改善的机械性能，从而在各种应用中提供更好的表现。在环境科学中，理解polydisperse 粒子物质对评估空气质量及其对健康的影响至关重要。大气中的颗粒物（PM）通常是polydisperse 的，由不同大小、形状和组成的颗粒组成。PM的健康影响可能因其大小而异，较小的颗粒能够深入呼吸系统。因此，研究polydisperse 粒子物质对于制定有效的法规和减轻空气污染的策略至关重要。此外，在胶体系统的背景下，polydisperse 胶体的稳定性和行为可能与其单分散对应物不同。不同大小颗粒之间的相互作用可能导致相分离或凝胶化等独特现象。理解这些行为对于依赖胶体系统的行业（如食品生产和化妆品）至关重要。总之，polydisperse 的概念在各个科学学科中都是基础的。无论是涉及纳米颗粒、聚合物、环境颗粒还是胶体，认识到polydisperse 系统的影响对于推动研究和技术进步至关重要。随着我们继续探索材料及其行为的复杂性，对polydisperse 系统的透彻理解无疑将在塑造未来创新和应用中发挥重要作用。研究人员必须在表征和控制颗粒的大小分布方面保持警惕，以充分利用polydisperse 材料在实际应用中的潜力。