degree of polymerization

简明释义

聚合度

英英释义

例句

1.The degree of polymerization indicates the number of monomeric units in a polymer chain.

聚合度degree of polymerization指的是聚合物链中单体单位的数量。

2.Increasing the degree of polymerization can enhance the mechanical strength of the material.

增加聚合度degree of polymerization可以增强材料的机械强度。

3.In synthetic rubber production, controlling the degree of polymerization is crucial for achieving desired properties.

在合成橡胶生产中，控制聚合度degree of polymerization对获得所需性质至关重要。

4.The degree of polymerization affects the viscosity of polymer solutions.

聚合度degree of polymerization影响聚合物溶液的粘度。

5.Researchers measured the degree of polymerization to evaluate the performance of the new plastic.

研究人员测量了聚合度degree of polymerization以评估新塑料的性能。

作文

The concept of degree of polymerization is fundamental in the field of polymer chemistry and materials science. It refers to the number of repeating units in a polymer chain, which directly influences the properties and characteristics of the material. Understanding the degree of polymerization is crucial for scientists and engineers as it helps them tailor polymers for specific applications. For instance, a higher degree of polymerization usually results in a material that has increased strength and durability, making it suitable for construction materials or automotive parts. Conversely, a lower degree of polymerization may yield a more flexible and less durable product, which could be ideal for applications like packaging films or adhesives.Polymers are made up of long chains of molecules, and the degree of polymerization indicates how many of these molecular units are linked together. This measure can vary significantly depending on the method of polymerization used. For example, in addition polymerization, the degree of polymerization can be controlled by adjusting the concentration of monomers and the reaction conditions. In contrast, condensation polymerization often leads to a broader distribution of chain lengths, resulting in a wider range of degree of polymerization values.In practical applications, the degree of polymerization can be determined through various analytical techniques such as gel permeation chromatography (GPC) or viscometry. These methods allow researchers to assess the average chain length and distribution of polymer chains within a sample. By analyzing this data, one can infer important mechanical and thermal properties of the polymer, which are essential for quality control in manufacturing processes.Moreover, the degree of polymerization also plays a significant role in the thermal behavior of polymers. Polymers with a high degree of polymerization tend to exhibit higher melting and glass transition temperatures, which are critical factors in determining the thermal stability of the material. This understanding allows manufacturers to select appropriate polymers for high-temperature applications, ensuring that the final products maintain their integrity under stress.The environmental impact of polymers is another area where degree of polymerization is relevant. Biodegradable polymers, for example, often have a lower degree of polymerization, which can enhance their degradation rate in natural environments. Thus, researchers are exploring ways to manipulate the degree of polymerization to create sustainable materials that minimize environmental harm while still meeting performance standards.In conclusion, the degree of polymerization is a critical parameter that affects the physical and chemical properties of polymers. Its influence extends across various fields, from industrial applications to environmental sustainability. As the demand for advanced materials continues to grow, a deeper understanding of the degree of polymerization will empower scientists and engineers to innovate and develop new solutions that meet the challenges of modern society.

聚合度的概念在聚合物化学和材料科学领域中是基础性的。它指的是聚合物链中重复单元的数量，这直接影响到材料的性质和特性。理解聚合度对科学家和工程师至关重要，因为它帮助他们为特定应用量身定制聚合物。例如，较高的聚合度通常会导致材料具有更高的强度和耐久性，使其适合用于建筑材料或汽车零件。相反，较低的聚合度可能会产生更灵活且耐用性较差的产品，这可能非常适合用于包装薄膜或粘合剂。聚合物由长链分子组成，而聚合度指示了这些分子单元连接在一起的数量。这个测量值可以根据使用的聚合方法显著变化。例如，在加成聚合中，可以通过调整单体的浓度和反应条件来控制聚合度。相比之下，缩聚聚合通常会导致链长的分布更广，从而导致更广泛的聚合度值。在实际应用中，可以通过各种分析技术来确定聚合度，如凝胶渗透色谱（GPC）或粘度法。这些方法使研究人员能够评估样本中聚合物链的平均链长和分布。通过分析这些数据，可以推断出聚合物的重要机械和热性能，这对于制造过程中的质量控制至关重要。此外，聚合度在聚合物的热行为中也起着重要作用。具有高聚合度的聚合物往往表现出更高的熔融温度和玻璃转变温度，这些都是决定材料热稳定性的关键因素。这种理解使制造商能够选择适合高温应用的聚合物，从而确保最终产品在应力下保持其完整性。聚合物对环境的影响是另一个与聚合度相关的领域。例如，可生物降解聚合物通常具有较低的聚合度，这可以增强其在自然环境中的降解速率。因此，研究人员正在探索操控聚合度的方法，以创造可持续材料，最大程度地减少对环境的危害，同时仍满足性能标准。总之，聚合度是影响聚合物物理和化学性质的关键参数。它的影响跨越多个领域，从工业应用到环境可持续性。随着对先进材料需求的不断增长，对聚合度的更深入理解将使科学家和工程师能够创新并开发新解决方案，以应对现代社会的挑战。