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

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
Radical Chain-Growth Polymerization: Chain Branching01:17

Radical Chain-Growth Polymerization: Chain Branching

1.8K
The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...
1.8K
Anionic Chain-Growth Polymerization: Mechanism01:04

Anionic Chain-Growth Polymerization: Mechanism

1.7K
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...
1.7K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.1K
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...
2.1K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

2.3K
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...
2.3K
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

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

Highly robust molecular information carriers for traceability of plastic materials.

Nature communications·2026
Same author

Helical Folding of Abiotic Chiral Poly(phosphodiester)s.

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

Synthetic Poly(phosphoester)s with Defined Charge Patterns.

ACS macro letters·2026
Same author

Switching Ionization Polarity to Simplify MS/MS Sequencing of Digital Polymers: the Case of Informational Poly(Amino phosphodiester)s.

Rapid communications in mass spectrometry : RCM·2026
Same author

Applying Catching-by-Polymerization for the Preparation of Long Sequence-Defined Polymers.

ACS macro letters·2026
Same author

Acceleration, simplification and potential parallelization of digital polymers sequencing by coupling tandem mass spectrometry with ion mobility.

Nature communications·2025

関連する実験動画

Updated: May 1, 2026

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
09:02

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

10.2K

配列に並べられたセグメントを含むブロックコポリマーの液相合成.

Sebastian Pfeifer1, Zoya Zarafshani, Nezha Badi

  • 1Nanotechnology for Life Science Research Group, Fraunhofer Institute for Applied Polymer Research, Geiselbergstrasse 69, Potsdam-Golm 14476, Germany.

Journal of the American Chemical Society
|June 16, 2009
PubMed
まとめ

シーケンス定義オリゴマーは,クリック化学とアミデーションを使用して,グループを保護せずに合成されました. 溶性ポリマーは,オリゴーマーとブロックコポリマーの汎用合成を可能にします.

科学分野:

  • ポリマー化学のポリマー化学について
  • オーガニック・シンセシス オーガニック・シンセシス
  • 超分子化学 超分子化学

背景:

  • 配列定義オリゴマーの合成方法の開発は,高度な機能材料の作成に不可欠です.
  • 伝統的な固体相合成には,しばしばグループを保護し,複雑性とステップを追加する必要があります.
  • オリゴマーのモノマーの正確な配列を制御することは,予測可能な性質のために不可欠です.

研究 の 目的:

  • モノディスパース,シーケンス定義オリゴーマーを合成するための保護基のない方法を開発する.
  • オリゴーマー合成およびブロックコポリマー製剤の溶解性ポリマーサポーターの使用を調査する.
  • 複雑なオリゴメリック構造を構築する際の化学選択反応の汎用性を実証する.

主な方法:

  • 1,3-二極サイクロアディション (クリック化学) とアミディフィケーション反応を用いた段階的な合成.
  • オリゴマーの構築は,従来の固体基材 (ワング樹脂) と,カスタマイズされた溶性ポリステリンの基材の両方で行われます.
  • 溶性ポリシュタイレンの合成は,原子移転ラジカルポリメリゼーション (ATRP) を介してサポートされます.

主要な成果:

  • 溶液中の単分散配列定義オリゴマーの合成が成功し,保護基は含まれていない.

さらに関連する動画

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

12.8K
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

7.6K

関連する実験動画

Last Updated: May 1, 2026

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
09:02

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

10.2K
Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

12.8K
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

7.6K
  • 固体および溶性ポリマーの両方の基板上で効率的なオリゴーマー構造の実証.
  • 分解可能なオリゴーマー合成と分断できないブロックコポリマー製剤の両方のために,溶解性のマクロ分子支柱の汎用的な応用.

    • 結論:

    • 配列で定義されたオリゴマーの保護グループフリー合成は,連続した化学選択反応を使用して達成できます.
    • 溶性ポリマーサポーターは,定義されたオリゴーマーとブロックコポリマーを合成するための汎用的なプラットフォームを提供します.
    • このアプローチは,材料科学における潜在的な応用を持つ精密に構造されたマクロモレキュルを作成するためのツールキットを拡張します.