Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Radical Chain-Growth Polymerization: Overview01:10

Radical Chain-Growth Polymerization: Overview

2.4K
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
2.4K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

2.7K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
2.7K
Radical Chain-Growth Polymerization: Mechanism01:09

Radical Chain-Growth Polymerization: Mechanism

2.6K
The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization initiates when a free radical generated from the radical initiator adds to the unsaturated bond in the monomer. The unpaired electron of the free radical and one π electron in the unsaturated bond creates a σ bond between the free radical and the monomer. As a result, the other π electron in the unsaturated bond converts this...
2.6K
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

2.6K
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
2.6K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.3K
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...
2.3K
Polymers02:34

Polymers

35.8K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
35.8K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

pH Regulates Ion Dynamics in Carboxylated Mixed Conductors.

Chemistry of materials : a publication of the American Chemical Society·2026
Same author

Sporopollenin Surface Characterization with Inverse Liquid Chromatography.

ACS omega·2026
Same author

Organic Mixed Ionic-Electronic Conductors for Organic Electrochemical Transistors: Sidechain Structure Influences Ion Uptake and Functional Performance.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

PMSE Centennial: Celebration of Success and New Frontiers in Polymer Materials Science and Engineering.

ACS macro letters·2025
Same author

Polyethylene Glycol Surface Modification and Polythiophene Side-Chain Chemistry: A Combined Strategy toward High-Capacity Lithium-Ion Battery Anodes.

ACS applied energy materials·2025
Same author

Preprocessing Affords 3D Crystalline Poly(3-hexylthiophene) Structure.

Chemistry of materials : a publication of the American Chemical Society·2025

相关实验视频

Updated: Jul 9, 2025

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates
07:32

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates

Published on: January 17, 2018

34.1K

结合聚合物过程本体学和有机场效应晶体管的实验数据库.

Aaron L Liu1, Myeongyeon Lee2, Rahul Venkatesh1

  • 1School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States.

Chemistry of materials : a publication of the American Chemical Society
|November 29, 2023
PubMed
概括

开发用于有机电子产品的标准化数据管理是至关重要的. 这项工作引入了使用ISA-88标准的数据库,以使有机场效应晶体管 (OFET) 的可重复性研究和数据驱动的发现成为可能.

更多相关视频

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
10:44

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors

Published on: January 31, 2025

625
Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
11:44

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Published on: October 18, 2018

26.6K

相关实验视频

Last Updated: Jul 9, 2025

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates
07:32

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates

Published on: January 17, 2018

34.1K
Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
10:44

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors

Published on: January 31, 2025

625
Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
11:44

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Published on: October 18, 2018

26.6K

科学领域:

  • 材料科学 材料科学 材料科学
  • 有机电子 有机电子
  • 数据科学数据科学数据科学

背景情况:

  • 有机电子,特别是聚合物半导体,是信息学驱动材料开发的关键.
  • 设备测量,比如有机场效应晶体管 (OFET) 的移动性,对许多实验参数非常敏感.
  • 实验细节的不完整报告阻碍了数据可用于优化,建模和分析的重复使用.

研究的目的:

  • 为了解决对实验材料缺乏标准化数据本体学的问题.
  • 设计和实施一个强大的对象关系数据库来存储可复制的OFET实验记录.
  • 为了实现在有机电子产品中的过程结构属性关系的数据驱动学习.

主要方法:

  • 设计了一个基于ISA-88批处理过程控制标准的对象关系数据库结构.
  • 从文献和实验室实验中整理了实验数据记录.
  • 动员策划数据,以促进流程结构与属性关系的数据驱动学习.

主要成果:

  • 成功实施了一个数据库来存储有机场效应晶体管 (OFET) 的实验记录.
  • 证明了数据库在实现过程结构属性关系的数据驱动学习方面的实用性.
  • 在有机电子产品中建立了FAIR (可查找,可访问,可互操作,可重复使用) 数据策划的基础.

结论:

  • 开发的数据库和数据结构,利用ISA-88,为管理有机电子中的实验数据提供了一个标准.
  • 这种方法促进了可重复的研究,并加速了新有机电子材料和设备的发现.
  • 鼓励材料科学界更广泛地采用数据管理实践和设计标准.