関連する実験動画
Updated: May 24, 2026
16:24
Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
Published on: August 2, 2012
機能的な超分子ポリマー
T Aida1, E W Meijer, S I Stupp
1Department of Chemistry and Biotechnology, School of Engineering, University of Tokyo, Tokyo, Japan.
Science (New York, N.Y.)
|February 21, 2012
まとめ
超分子ポリマーは,自己治癒性や再利用性などのユニークな特性を提供し,プラスチックと弾性体間のギャップを埋める. また,それらの秩序ある構造は,新しい生物学的および電子的機能を可能にします.
科学分野:
- ポリマーサイエンスの科学
- 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:
- 超分子ポリマーには,プラスチックや弾性体のような性質があります.
- モノマーからポリマーへの変換が逆行可能で,加工可能,リサイクル可能,自己治癒を可能にします.
- これらのポリマーは,設計されたサブユニットの自己組み立てを通じて,オーダーされたフィラメントを形成することができます.
研究 の 目的:
- 超分子ポリマーの多様な機械的性質とダイナミックな振る舞いを探求する.
- オーダーされたポリマー構造を作成する際の強力で方向的な相互作用の可能性を強調する.
- これらの高度な材料のバイオミメティックおよび機能的な応用について議論する.
主な方法:
- ポリマー形成のための可逆的なモノマーからポリマーへの移行を利用する.
- 設計されたサブユニットの自己組み立てを使用して,秩序ある構造を作成します.
- 強い,方向性のある分子間相互作用を調査する.
主要な成果:
- 超分子ポリマーは,ランダムなコイルまたは高度に秩序付けられたフィラメントとして存在することができます.
- 逆戻り可能な移行は,処理性,再利用性,および自己治癒性の向上を促進します.
- 設計されたサブユニットと強力な相互作用は,ダイナミックな行動と高い内部秩序につながります.
結論:
- 超分子ポリマーは,調節可能な性質を持つ汎用的なプラットフォームを提供します.
- その秩序ある構造は,細胞骨格のような生物学的システムを模倣する.
- 潜在的な応用は,生物学的機能や電子機器に及ぶ.
関連する概念動画
02:34Polymers
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,...
02:34Polymers
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,...
01:24Characteristics 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...
01:00Characteristics 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.
01:20Anionic 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,...
01:08Molecular Weight of Step-Growth Polymers
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...