Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

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

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

3.4K
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...
3.4K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.8K
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...
2.8K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

4.3K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
4.3K
Anionic Chain-Growth Polymerization: Mechanism01:04

Anionic Chain-Growth Polymerization: Mechanism

2.6K
The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
2.6K
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

2.3K
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
2.3K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

3.1K
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...
3.1K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Artificial Processive Catalytic Systems: Bridging Synthetic Polymers and Biological Precision.

Polymer science & technology (Washington, D.C.)·2026
Same author

Author Correction: Mapping in situ the assembly and dynamics in aqueous supramolecular polymers.

Nature communications·2026
Same author

Macrocyclic Molecular Glues for the 14-3-3/ChREBP Interaction: Affinity and Cooperativity in an Inverse Relationship.

Angewandte Chemie (International ed. in English)·2025
Same author

Coupled Benchtop NMR and EPR Spectroscopy Reveals the Electronic Structure of Viologen Radicals in a Redox Flow Battery.

ACS electrochemistry·2025
Same author

Bayesian Optimization for Multicomponent Supramolecular Systems.

Journal of the American Chemical Society·2025
Same author

Tuning collagen nonlinear mechanics with interpenetrating networks drives adaptive cellular phenotypes in three dimensions.

Science advances·2025
Same journal

Decoding Galectin-Glycan Recognition with <sup>19</sup>F-Tagged Lectins: from Simple Glycans to the Cellular Glycocalyx.

Journal of the American Chemical Society·2026
Same journal

Open- and Closed-Shell Roles of Sensitizer and Annihilator in Pseudo-Single Component Mixtures for Upconversion.

Journal of the American Chemical Society·2026
Same journal

Pressure-Induced Superconductivity at 15 K in van-der-Waals Ferroelectric CuInP<sub>2</sub>S<sub>6</sub>.

Journal of the American Chemical Society·2026
Same journal

Carbene Analogues of Group 15: Reduction of s-Hydrindacene-Based Chloropnictogenium Ions To Access an Antimony Hydride Monocation and a Trinuclear Bismuth Dication.

Journal of the American Chemical Society·2026
Same journal

Chiral-Ligand-Modulated Nickel-Catalyzed Stereoselective Radical Migratory C2-Arylation of Carbohydrates.

Journal of the American Chemical Society·2026
Same journal

Coordination-Constraint-Driven Enhanced Chirality Induction in Perovskite Quantum Dot Solids.

Journal of the American Chemical Society·2026
関連記事をすべて見る

関連する実験動画

Updated: Apr 16, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.6K

マクロサイクリックジマーを通してポリマーのアロステリック制御されたスレッドリング.

Seda Cantekin1, Albert J Markvoort2, Johannes A A W Elemans1

  • 1†Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.

Journal of the American Chemical Society
|March 4, 2015
PubMed
まとめ
この要約は機械生成です。

研究者らは,亜鉛ポルフィリンマクロサイクルとDABCOを用いて安定した超分子複合体を作り出した. この複合体は,ポリマーのスローディングとデスローディングが遅いことを示し,アロステル相互作用によるロック状態を示した.

さらに関連する動画

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

4.1K
Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
05:48

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes

Published on: November 21, 2017

8.7K

関連する実験動画

Last Updated: Apr 16, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.6K
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

4.1K
Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
05:48

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes

Published on: November 21, 2017

8.7K

科学分野:

  • 超分子化学 超分子化学
  • 化学熱力学 化学熱力学
  • ポリマーサイエンスの科学

背景:

  • 現在進行中の研究は,アロステリック情報伝達を用いた分子チューリングマシンを構築することを目指しています.
  • マクロサイクルの複合体は,ポリマー鎖の暗号化のための重要な構成要素である.
  • 多成分システムにおける自己組み立てを理解することは,分子装置の構築に不可欠です.

研究 の 目的:

  • 熱力学的に,そして運動的に,多要素の自己組み立てシステムを特徴付ける.
  • 亜鉛ポルフィリン基複合体の形成と安定性をポリマーゲストで調査する.
  • マクロサイクルシステムにおけるポリマー結合におけるアロステル相互作用の役割を明らかにする.

主な方法:

  • 亜鉛ポルフィリンマクロサイクリック化合物,1,4-ディアザビサイクロ[2.2.2]オクタン (DABCO),およびバイオゲン置換ポリマーを使用した.
  • システム分析のためにスペクトル測定とコンピューティングモデリングを使用した.
  • 関連定数と複素分数を決定するために,質量バランスモデリングを適用した.

主要な成果:

  • 安定した2:1 (ポルフィリン:DABCO) 二重複合体は,協力的な水素と金属-リガンド結合により容易に形成される.
  • ポリマーによる定位は,種の複雑な混合物をもたらしました.
  • 動力学的研究では,ポリマーのスレッドとデスレッドの速度が著しく遅いことが示されました.

結論:

  • 安定した二次元複合体は,強力なアロステリック相互作用を通じて,ポリマーゲストを効果的にロックします.
  • 発見は,自己組み立てシステムに基づく分子機械の設計に関する洞察を提供します.
  • この研究は,合成分子システムにおける情報伝達の理解に貢献します.