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Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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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.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
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Polymers02:34

Polymers

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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...
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Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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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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Plasticizers01:31

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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
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Free-Radical Chain Reaction and Polymerization of Alkenes02:35

Free-Radical Chain Reaction and Polymerization of Alkenes

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The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
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植物灵感构建未来塑料的基石.

Aurin M Vos1, Evelien Maaskant2, Wouter Post2

  • 1Wageningen Plant Research, Wageningen University and Research, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands.

Trends in biotechnology
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概括

植物酶可以为可再生循环经济创造新的塑料构建块. 这种方法为化石燃料提供了一个可持续的替代方案,为环保塑料提供了新的应用.

关键词:
基于生物的生物制品生物化学多样性 生物化学多样性构建块是构建块的组成部分.植物修饰酶是一种植物修饰酶.塑料塑料的塑料是一种塑料.可再生能源是可再生的

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科学领域:

  • 生物技术是生物技术.
  • 聚合物科学 聚合物科学
  • 可持续化学 可持续化学

背景情况:

  • 当前的线性经济在很大程度上依赖于塑料生产的化石燃料.
  • 过渡到循环经济需要可持续的替代品塑料构建块.
  • 植物专门的新陈代谢为新型化合物发现提供了巨大的生物化学多样性.

研究的目的:

  • 探索植物酶在生产塑料新型构建材料方面的潜力.
  • 通过生物技术过程使新的可再生塑料的开发成为可能.
  • 通过取代化石塑料,为可持续的循环经济做出贡献.

主要方法:

  • 利用来自专门代谢的植物酶.
  • 采用生物技术过程用于构建块合成.
  • 研究新型聚合物前体的生产.

主要成果:

  • 确定了植物酶作为生产新塑料构建块的促进剂.
  • 证明了可再生塑料前体的生物技术合成潜力.
  • 展示植物灵感分子作为新聚合物开发的可行替代品.

结论:

  • 植物酶是可再生塑料构建块的有希望的来源.
  • 使用植物灵感分子的生物技术路线可以推动新型可持续塑料的开发.
  • 这种方法支持向循环经济过渡,并减少对化石燃料的依赖.