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

Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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...
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

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...
Radical Chain-Growth Polymerization: Chain Branching01:17

Radical Chain-Growth Polymerization: Chain Branching

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...
Polymers02:34

Polymers

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 properties that they exhibit. Additionally,...
Characteristics and Nomenclature of Homopolymers01:00

Characteristics and Nomenclature of Homopolymers

Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

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,...

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

Vertically stacked immobilized photocatalyst devices towards land-efficient solar hydrogen production.

Nature communications·2026
Same author

Future directions and emerging trends of sustainable energy harvesting: innovations in photovoltaic and thermoelectric systems.

RSC advances·2026
Same author

Factors associated with hospital transport in emergency medical services-attended out-of-hospital cardiac arrest.

Resuscitation·2026
Same author

The Impact of Insomnia on Dementia Risk in Hypertensive Individuals.

In vivo (Athens, Greece)·2026
Same author

Bifidobacterium breve promotes growth and lipid alteration in Trichomonas vaginalis transiently through transcriptomic reprogramming.

Scientific reports·2026
Same author

Beyond Cartilage-Inspired Supramolecular Polyurethane for Adaptive Impact-Resistant Protection with Robustness, Self-Healing, and Recyclability.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

関連する実験動画

Updated: Jun 21, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

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

Published on: February 6, 2020

ポリマー製のレッダーファンは,

Chih-Ming Chou1, Shern-Long Lee, Chih-Hsien Chen

  • 1Department of Chemistry, National Taiwan University, Taipei, Taiwan 106.

Journal of the American Chemical Society
|August 14, 2009
PubMed
まとめ
この要約は機械生成です。

研究者らは,ユニークな二重鎖の骨格とオリゴアリルリンクヤーを持つ新しいポリマー・レッダーファンを合成した. これらの高度なポリマーは,独特の光物理的特性を発揮し,オーダーされた2D配列に自己組み立てられ,材料科学における潜在能力を示しています.

さらに関連する動画

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces
08:50

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

Published on: September 26, 2014

Generating a Fractal Microstructure of Laminin-111 to Signal to Cells
06:56

Generating a Fractal Microstructure of Laminin-111 to Signal to Cells

Published on: September 28, 2020

関連する実験動画

Last Updated: Jun 21, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

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

Published on: February 6, 2020

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces
08:50

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

Published on: September 26, 2014

Generating a Fractal Microstructure of Laminin-111 to Signal to Cells
06:56

Generating a Fractal Microstructure of Laminin-111 to Signal to Cells

Published on: September 28, 2020

科学分野:

  • ポリマー化学のポリマー化学について
  • マテリアルサイエンス 材料科学
  • 超分子化学 超分子化学

背景:

  • ポリメリックレッダーファンは,マクロモレキュルの新しいクラスを表しています.
  • 構造と性質の関係を理解することは,先進的な材料の開発において極めて重要です.

研究 の 目的:

  • 二重鎖のポリビノルボルネン骨格と多層の平面オリゴアリル結合体を持つ新しいポリマー・レッダーファンを合成し,特徴づけること.
  • これらの新しいポリマーの光物理的性質と自己組み立て行動を調査する.

主な方法:

  • ポリメリック・レッダーファンの合成.
  • 構造的決定のためのスペクトル顕微鏡技術 (例えば,NMR,UV-Vis).
  • 時間分解の光スペクトロスコーピーを含む光物理学的研究.
  • 形態学的分析のためのスキャニングトンネル顕微鏡 (STM).

主要な成果:

  • 定義された構造を持つポリメリック・レッダーファンの合成が成功しました.
  • 染色体結合体間の強い相互作用が観察され,ソレート帯分裂,光消火,エクシマー放出などの特徴的な光物理現象を引き起こした.
  • ポリマー12bとdは,梯子のような形状を示し,グラファイト表面に二次元のオーダーされた超分子組成を形成しました.

結論:

  • ポリメリック・レッダーファンは,リンカー相互作用によって導かれるユニークな光物理的特性を示す.
  • これらのポリマーは自己組織化能力を発揮し,オーダーされた超分子構造を形成します.
  • この発見は,カスタマイズされた光学および自己組み立て特性を持つ機能性ポリマーを設計するための道を開く.