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zls1234鐵桿木蟲 (職業(yè)作家)
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[求助]
向牛人求助macromolecule和polymer的區(qū)別 已有5人參與
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感謝參與，應(yīng)助指數(shù) +1
zls1234: 金幣+1, ★有幫助 2014-09-17 19:53:17
感謝參與，應(yīng)助指數(shù) +1
zls1234: 金幣+1, ★有幫助 2014-09-17 19:53:17
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好像沒有什么差異。好像合成材料領(lǐng)域用polymer多些。應(yīng)該與這個概念出現(xiàn)時不同的人用詞有關(guān)吧！ 下面是維基的解釋（節(jié)選）： A macromolecule is a very large molecule commonly created by polymerization of smaller subunits. In biochemistry, the term is applied to the three conventional biopolymers (nucleic acids, proteins, and carbohydrates),[2] as well as non-polymeric molecules with large molecular mass such as lipids and macrocycles. The individual constituent molecules of polymeric macromolecules are called monomers 。 A polymer (/ˈpɒlɨmər/[2][3]) (poly-, "many" + -mer, "parts"  is a large molecule, or macromolecule, composed of many repeated subunits. Because of their broad range of properties,[4] both synthetic and natural polymers play an essential and ubiquitous role in everyday life.[5] Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular mass relative to small molecule compounds produces unique physical properties, including toughness, viscoelasticity, and a tendency to form glasses and semicrystalline structures rather than crystals. |
2樓2014-09-17 18:09:05
3樓2014-09-17 19:41:25
4樓2014-09-17 20:05:33
luffywit
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5樓2014-09-17 20:51:16
1035750570
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Macromolecules are molecules made of smaller subunits. Polymers are macromolecules made of repeating subunits. For example, a protein is both a macromolecule and a polymer since it is made of repeating units of amino acids. Theorically, there are no limits to how many amino acids there can be in a protein molecule. A tryglyceride is a macromolecule but not a polymer. Tryglycerides are made of a glycerol binded with three fatty acids. There are no repeating units. So tryclycerides are not polymers.——Gt. Yuhan Zhang (Proud A-level Biology student) Ref: quora(https://www.quora.com/What-is-th ... lecule-and-polymer) |
6樓2020-07-28 01:27:26
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