graft copolymerization

简明释义

接枝共聚合

英英释义

Graft copolymerization is a chemical process in which side chains of one polymer (the 'graft') are chemically bonded to the backbone of another polymer, resulting in a copolymer with distinct physical and chemical properties.

接枝共聚合是一种化学过程,其中一个聚合物的侧链(‘接枝’)与另一个聚合物的主链化学结合,从而形成具有不同物理和化学性质的共聚合物。

例句

1.The team developed a new technique for graft copolymerization that reduces production costs.

团队开发了一种新的接枝共聚合技术,降低了生产成本。

2.By utilizing graft copolymerization, they were able to create materials with improved strength and flexibility.

通过利用接枝共聚合,他们能够创造出具有更强强度和灵活性的材料。

3.Researchers are exploring graft copolymerization as a method to improve drug delivery systems.

研究人员正在探索接枝共聚合作为改善药物传递系统的方法。

4.The researchers focused on the process of graft copolymerization to enhance the properties of the polymer.

研究人员专注于接枝共聚合过程,以增强聚合物的特性。

5.The application of graft copolymerization in biomedical devices has shown promising results.

接枝共聚合在生物医学设备中的应用显示出良好的前景。

作文

Graft copolymerization is a crucial process in polymer chemistry that involves the synthesis of a new polymer by attaching side chains, or "grafts," to a pre-existing polymer backbone. This technique allows for the creation of materials with tailored properties, making them suitable for various applications in industries such as textiles, plastics, and biomedical devices. The process begins with the selection of a suitable backbone polymer, which can be a homopolymer or a copolymer. Once the backbone is chosen, specific monomers are selected for grafting, which can significantly alter the mechanical, thermal, and chemical properties of the final product.The significance of graft copolymerization (接枝共聚合) lies in its ability to enhance the performance of polymers. For instance, by grafting hydrophilic chains onto a hydrophobic backbone, one can produce materials that exhibit improved water absorption and compatibility with biological tissues. This property is particularly valuable in the development of drug delivery systems and tissue engineering scaffolds, where biocompatibility and controlled release of therapeutic agents are essential.Moreover, graft copolymerization (接枝共聚合) can also be employed to modify the surface properties of materials. By introducing functional groups through grafting, the adhesion, wettability, and reactivity of the polymer surface can be altered, making it more suitable for specific applications. For example, in the coating industry, grafted polymers can provide enhanced adhesion to substrates, improving the durability and longevity of coatings.The methods of graft copolymerization (接枝共聚合) can vary, but they generally fall into two categories: "grafting from" and "grafting to." In the "grafting from" method, the grafts are synthesized directly from the backbone polymer using techniques such as radical polymerization, anionic polymerization, or living polymerization. This approach allows for better control over the length and distribution of the grafts. On the other hand, the "grafting to" method involves the attachment of pre-synthesized polymer chains to the backbone, which can be advantageous for creating complex architectures but may lead to less control over the grafting density.Research in the field of graft copolymerization (接枝共聚合) continues to advance, with scientists exploring new monomers, reaction conditions, and techniques to further enhance the properties of grafted polymers. Innovations such as click chemistry and self-assembly are being integrated into graft copolymerization processes, leading to the development of novel materials with unprecedented functionalities.In conclusion, graft copolymerization (接枝共聚合) is a versatile and powerful tool in polymer science, enabling the design of materials with specific characteristics for diverse applications. Its ability to modify existing polymers opens up a realm of possibilities for creating advanced materials that meet the demands of modern technology and medicine. As research continues to unfold, we can expect to see even more innovative uses of this technique in the future.