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相关概念视频

Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

2.7K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
2.7K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.4K
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
2.4K
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

3.6K
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
3.6K

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相关实验视频

Updated: Sep 8, 2025

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
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Published on: June 20, 2019

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实现块共聚合物自组装的数据驱动设计.

Chiara Magosso1,2, Irdi Murataj2, Michele Perego3

  • 1Department of Electronics and Telecommunications, Politecnico di Torino, 10129, Turin, Italy.

Scientific data
|June 21, 2025
PubMed
概括

我们创建了一个扫描电子显微镜图像的数据库,用于自组装的块共聚合物. 该资源将制造参数与材料结构联系起来,有助于合理设计新材料.

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

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相关实验视频

Last Updated: Sep 8, 2025

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物科学 聚合物科学
  • 纳米技术纳米技术

背景情况:

  • 自组装区块共聚合物对于先进材料至关重要.
  • 描述它们的纳米结构需要详细的制造和成像数据.
  • 现有的数据管理可能是分散的,容易出现错误.

研究的目的:

  • 建立一个全面的,以图像为基础的自组装区块共聚合物的数据库.
  • 整合制造参数,成像数据和结构分析.
  • 促进材料研究中的数据共享,可重复使用性和错误减少.

主要方法:

  • 使用扫描电子显微镜图像开发数据库.
  • 包括制造参数和成像条件的详细元数据.
  • 实现用于元数据输入的图形用户界面.
  • 纳米结构分析的自动化算法的应用.

主要成果:

  • 一个数据库,包含大约1747图像的板状和圆柱体块共聚合物形态.
  • 元数据将制造参数与观察到的结构性质联系起来.
  • 展示数据库在数据驱动材料设计方面的潜力.

结论:

  • 以图像为中心的数据库方法提高了数据的可访问性和可靠性.
  • 该数据库使我们能够更深入地了解区块共聚合物中的结构属性关系.
  • 该平台的设计是为了研究社区的持续扩展.