関連する実験動画

Updated: Oct 6, 2025

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
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Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

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ステレオ化学による分解性と機械的性質を持つ砂糖ベースのポリマー

Connor J Stubbs1, Joshua C Worch1, Hannah Prydderch1

  • 1School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K.

Journal of the American Chemical Society
|January 14, 2022
PubMed
まとめ

砂糖ベースのモノメアのステレオ化学的差異は,新しいポリウレタンを生み出します. これらのポリマーは,強固な弾性体から強固な熱プラスチックまで,高度な材料性能を示す調整可能な特性を持っています.

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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.
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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...
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Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
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