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

Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

2.5K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
2.5K
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.5K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.5K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

3.1K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
3.1K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

3.2K
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...
3.2K
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

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

3.1K
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...
3.1K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.5K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
2.5K

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

Synthesis and Functional Properties of Fluorinated Phosphonate-Substituted Porphyrins: Excellent Photosensitizers and Robust Precursors for Photoactive Langmuir-Schaefer Films.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Innovative design of fluorescent PLGA-1,8-naphthalimide nanoparticles as multifunctional materials for next-generation nanotechnology and biomedicine.

Journal of materials chemistry. B·2026
Same author

Effect of Diethyl Phosphonate Substituents on the Supramolecular Organization and Optical Response of Porphyrin Langmuir-Blodgett and Langmuir-Schaefer Films.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Influence of Surface Energy and Phase Composition on Electroadhesive Interactions.

Polymers·2025
Same author

Furan-Urethane Monomers for Self-Healing Polyurethanes.

Polymers·2025
Same author

Fracture Toughness of Winding Carbon Plastics Based on Epoxy Matrices and Reinforced by Polysulfone Film.

Polymers·2025

相关实验视频

Updated: Jan 13, 2026

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

12.4K

乙烯-乙酸乙烯共聚物作为低粘度光敏感组合物的多功能修饰剂.

Dmitriy A Bazhanov1, Uliana V Nikulova1, Ramil R Khasbiullin1

  • 1Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS), 31-4, Leninsky Prospect, 119071 Moscow, Russia.

Polymers
|October 28, 2025
PubMed
概括

热处理的乙烯-乙酸共聚合物 (EVA) 在3D打印组合物中充当热塑性修饰剂和加厚剂. 在改善流动性能的同时,EVA

关键词:
添加剂制造 添加剂制造 添加剂制造交叉连接代理人 交叉连接代理人光聚合的光聚合方式.类风病学 类风病学 类风病学结构形成 结构形成 结构形成

更多相关视频

Polymer Microarrays for High Throughput Discovery of Biomaterials
13:37

Polymer Microarrays for High Throughput Discovery of Biomaterials

Published on: January 25, 2012

14.9K
Inkjet-printed Polyvinyl Alcohol Multilayers
05:11

Inkjet-printed Polyvinyl Alcohol Multilayers

Published on: May 11, 2017

13.0K

相关实验视频

Last Updated: Jan 13, 2026

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

12.4K
Polymer Microarrays for High Throughput Discovery of Biomaterials
13:37

Polymer Microarrays for High Throughput Discovery of Biomaterials

Published on: January 25, 2012

14.9K
Inkjet-printed Polyvinyl Alcohol Multilayers
05:11

Inkjet-printed Polyvinyl Alcohol Multilayers

Published on: May 11, 2017

13.0K

科学领域:

  • 聚合物科学 聚合物科学
  • 材料科学 材料科学 材料科学
  • 摄影化学的使用.

背景情况:

  • 提高3D打印组合的低温物理和机械性能至关重要.
  • 乙烯-乙酸共聚合物 (EVA) 被探索为光敏感材料的潜在修饰剂.
  • 研究EVA作为热塑性修饰剂和聚合物链分支在光聚合物配方中的作用.

研究的目的:

  • 评估使用热处理的EVA作为基于三丁烯酸盐 (tBA) 的光敏感化合物的修饰剂的可行性.
  • 了解EVA对光固化系统的质,固化和结构性质的影响.
  • 评估EVA作为与tBA结合的交叉连接剂的潜力.

主要方法:

  • 福利埃变换红外 (FTIR) 和核磁共振 (NMR) 光谱用于分子结构分析.
  • 风力测量和光谱测量用于研究组合流和固化动力学.
  • 光差扫描热度计 (Photo-DSC) 和扫描电子显微镜 (SEM) 用于阶段组织和形态学.

主要成果:

  • 对EVA的热处理产生C=C键,使tBA具有潜在的交联.
  • 埃瓦作为一种有效的加厚剂,随着度的增加,它将成分流从牛顿式转变为伪塑料.
  • 较高的EVA度降低了光化学聚合率和整体转化程度.

结论:

  • 热处理的EVA可以修改和加厚光敏组合物,用于3D打印.
  • 不同质相结构的形成和缺乏连续网络限制了EVA作为同时交叉连接器的使用.
  • 在这个基于tBA的系统中,EVA的主要作用是作为功能添加剂,而不是交叉连接剂.