polymer
Significado: A large molecule made up of many repeated smaller units (monomers) bonded together; plastics, rubber, and DNA are all examples of polymers.
Polymers can be natural (cellulose, proteins, DNA) or synthetic (nylon, polyethylene, polystyrene). Polymer science is a major field within chemistry and materials science, with applications ranging from packaging to biomedical devices. The Bank of England's polymer banknotes, introduced from 2016, are made from a thin, transparent plastic film. Common collocations include 'polymer chemistry,' 'synthetic polymer,' 'polymer banknote,' and 'biodegradable polymer.'
Ejemplos
- The Bank of England introduced polymer banknotes to improve durability and security. 英格兰银行推出了聚合物钞票,以提高耐用性和安全性。El Banco de Inglaterra introdujo billetes de polímero para mejorar la durabilidad y la seguridad.イングランド銀行は耐久性とセキュリティの向上のためにポリマー紙幣を導入した。영란은행은 내구성과 보안성을 향상시키기 위해 폴리머 지폐를 도입했다.
- Researchers developed a new biodegradable polymer that breaks down naturally in seawater. 研究人员开发了一种能在海水中自然分解的新型可生物降解聚合物。Los investigadores desarrollaron un nuevo polímero biodegradable que se descompone de forma natural en el agua de mar.研究者たちは、海水中で自然に分解される新しい生分解性ポリマーを開発した。연구자들은 해수에서 자연적으로 분해되는 새로운 생분해성 고분자를 개발했다.
- DNA is a natural polymer composed of nucleotide monomers arranged in a double helix structure. DNA是一种天然聚合物,由核苷酸单体以双螺旋结构排列组成。El ADN es un polímero natural compuesto por monómeros de nucleótidos dispuestos en una estructura de doble hélice.DNAはヌクレオチドモノマーが二重螺旋構造に配列された天然のポリマーである。DNA는 뉴클레오타이드 단량체가 이중 나선 구조로 배열된 천연 고분자이다.
Pronunciación
Guía de uso
Contexto: academic, professional, media
Tono: neutral
Origen e historia
From Greek polymeres (having many parts), composed of polys (many) + meros (a part). Coined in its modern chemical sense by the Swedish chemist Jöns Jacob Berzelius in 1833.
Contexto cultural
Era: Modern
Generation: All ages
Social background: Universal
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