syndiotactic

简明释义

英[ˌsɪndaɪə(ʊ)ˈtæktɪk]美[ˌsɪndaɪoˈtæktɪk]

adj. 间同的，间规的

英英释义

单词用法

同义词

反义词

例句

1.Peroxide crosslinking of syndiotactic polypropylene (sPP) in the presence of trimethylolpropane trimethacrylate (TMPTMA) was studied by using DSC method.

用DSC对三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）存在下的间规聚丙烯过氧化物交联进行了研究。

2.Peroxide crosslinking of syndiotactic polypropylene (sPP) in the presence of trimethylolpropane trimethacrylate (TMPTMA) was studied by using DSC method.

用DSC对三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）存在下的间规聚丙烯过氧化物交联进行了研究。

3.This paper briefly described the formation cause of polymorphism of syndiotactic polystyrene (sPS) and the method for analyzing the polymorphism of sPS.

概述了间规聚苯乙烯多晶的成因及分析方法。

4.Introduce briefly the new engineering plastics syndiotactic polystyrene, including its structure, property, processing and application, etc.

简要介绍新型工程塑料间同立构结晶型聚苯乙烯的结构、性能、加工及其应用。

5.The complex polymorphism and the structural characteristic of various crystal forms are reviewed in syndiotactic polypropylene.

综述间规聚丙烯复杂的多晶型现象以及各晶型的结构特点。

6.The catalytic systems and polymerization mechanism of styrene syndiotactic polymerization were reviewed with 29 references.

对苯乙烯间规聚合的催化体系，聚合机理和研究现状等方面进行了较全面地综述。

7.The research development in catalysts for Syndiotactic polymerization of styrene is re-viewed .

本文综述了制备间规聚苯乙烯用催化剂的研究进展。

8.Polyacetaldehyde may exist in atactic, syndiotactic and isotactic forms.

聚乙醛可以以无规，间同和全同形式存在。

9.The polymer exhibits a high degree of crystallinity due to its syndiotactic 立体规整性 structure.

由于其syndiotactic 立体规整性结构，该聚合物表现出高结晶度。

10.Researchers are exploring how syndiotactic 立体规整性 polymers can improve the mechanical properties of materials.

研究人员正在探索如何通过syndiotactic 立体规整性聚合物来改善材料的机械性能。

11.The syndiotactic 立体规整性 arrangement of the polymer chains leads to enhanced thermal stability.

聚合物链的syndiotactic 立体规整性排列导致增强的热稳定性。

12.In the production of polypropylene, controlling the syndiotactic 立体规整性 can significantly affect its properties.

在聚丙烯的生产中，控制syndiotactic 立体规整性可以显著影响其性能。

13.The syndiotactic 立体规整性 of the copolymer contributes to its unique optical characteristics.

共聚物的syndiotactic 立体规整性有助于其独特的光学特性。

作文

The study of polymer chemistry reveals fascinating insights into the structure and properties of various polymers. One particularly interesting type of polymer is characterized by its stereochemistry, which can significantly affect its physical properties and applications. Among these types, we find the term syndiotactic, which refers to a specific arrangement of polymer chains that enhances their crystallinity and mechanical strength. In a syndiotactic polymer, the substituents along the polymer backbone alternate in a regular pattern, leading to a more organized structure compared to its atactic or isotactic counterparts. This regularity allows for closer packing of the polymer chains, resulting in improved density and thermal stability. Understanding the significance of syndiotactic configurations is essential for material scientists and engineers who aim to develop new materials with tailored properties. For instance, polystyrene can exist in different forms depending on its tacticity. The syndiotactic variant exhibits superior impact resistance and clarity, making it suitable for applications in packaging and consumer goods. In contrast, the atactic form is amorphous and less robust, which limits its use in demanding environments. The synthesis of syndiotactic polymers often involves specific catalysts that promote the desired stereochemical arrangement during polymerization. For example, Ziegler-Natta catalysts are commonly used to produce syndiotactic polypropylene, a material widely utilized in textiles, automotive parts, and household items due to its excellent mechanical properties and resistance to heat. Moreover, the study of syndiotactic polymers extends beyond mere academic interest; it has real-world implications in various industries. The ability to manipulate the tacticity of a polymer opens up avenues for innovation in product design and functionality. For instance, the development of syndiotactic polyvinyl chloride (PVC) has led to enhanced performance in construction materials, where durability and chemical resistance are paramount. In conclusion, the term syndiotactic encapsulates a crucial concept in polymer chemistry that underscores the relationship between molecular structure and material properties. As researchers continue to explore the potential of syndiotactic polymers, we can expect to see advancements that not only improve existing materials but also pave the way for novel applications across diverse sectors. The ongoing investigation into the intricacies of polymer tacticity illustrates the dynamic nature of materials science and its profound impact on technology and everyday life.

聚合物化学的研究揭示了各种聚合物的结构和性质的迷人见解。其中一种特别有趣的聚合物类型以其立体化学特征为特征，这对其物理性质和应用有显著影响。在这些类型中，我们发现了术语syndiotactic，它指的是聚合物链的一种特定排列，这种排列增强了其结晶性和机械强度。在syndiotactic聚合物中，聚合物主链上的取代基以规律的模式交替排列，从而导致比无规或同向聚合物更有序的结构。这种规律性允许聚合物链更紧密地堆积，从而改善了密度和热稳定性。 理解syndiotactic构型的重要性对于材料科学家和工程师至关重要，他们旨在开发具有定制性能的新材料。例如，聚苯乙烯可以根据其立体化学存在不同形式。syndiotactic变体表现出优越的抗冲击性和清晰度，使其适用于包装和消费品等应用。相比之下，无规形式是无定形的，强度较低，这限制了其在苛刻环境中的使用。 syndiotactic聚合物的合成通常涉及特定的催化剂，这些催化剂在聚合过程中促进所需的立体化学排列。例如，齐格勒-纳塔催化剂常用于生产syndiotactic聚丙烯，这是一种广泛用于纺织品、汽车零部件和家庭用品的材料，因为其优异的机械性能和耐热性。 此外，研究syndiotactic聚合物超越了单纯的学术兴趣；它在各个行业都有实际意义。操控聚合物的立体化学性为产品设计和功能创新开辟了新的途径。例如，syndiotactic聚氯乙烯（PVC）的发展导致在建筑材料中性能的提升，在这些材料中，耐用性和耐化学性是至关重要的。 总之，术语syndiotactic概括了聚合物化学中的一个关键概念，强调了分子结构与材料性质之间的关系。随着研究人员继续探索syndiotactic聚合物的潜力，我们可以期待看到不仅改善现有材料的进展，还为各个领域的新应用铺平道路。对聚合物立体化学复杂性的持续研究说明了材料科学的动态特性及其对技术和日常生活的深远影响。