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相关概念视频

Characteristics and Nomenclature of Homopolymers01:00

Characteristics 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.
Radical Chain-Growth Polymerization: Overview01:10

Radical Chain-Growth Polymerization: Overview

Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
Anionic Chain-Growth Polymerization: Overview01:20

Anionic 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,...
Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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 polymer...

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n型结合聚合物基于碳结的状单元用于透明导体.

Pengfei Pang1,2, Mei Rao3,4, Yilin Zhao5

  • 1Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.

Journal of the American Chemical Society
|March 11, 2026
PubMed
概括

研究人员开发了一种新的合聚合物PBT,它既具有高导电性,又具有光学透明性. 这种突破性的材料可以实现先进的红外成像和透明电子设备,可见光干扰最小.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 光电学是指光电子产品.

背景情况:

  • 在聚合物中同时实现高电导率和光学透明度是一个重大挑战.
  • 现有的材料往往会损害对方的一种特性,限制它们的应用.

研究的目的:

  • 开发一种具有高电导率和优异光学透明度的新型合聚合物 (PBT).
  • 探索PBT在红外光探测,成像和透明电子设备方面的潜力.

主要方法:

  • 通过使用一种新方法合成了一种新型的碳基终结型形单元.
  • 准备了结合聚合物PBT,结合了这个单元.
  • 描述了PBT在兴奋剂使用前和后的光学和电气特性.

主要成果:

  • 在紫外线可见区域中,PBT的吸收率最小,允许清晰的可见光传输.
  • 兴奋剂PBT导致宽频透明度 (300-2500nm) 高达98%的传导率.
  • 杂的PBT实现了超过100 S cm-1的电导率,这对于内在透明的合聚合物来说是最高的.
  • 制造的透明热电器件使用化PBT作为活性材料.

结论:

  • 开发的PBT聚合物克服了电导率和光学透明度之间的权衡.
  • PBT的独特光学特性和高导电性使其适合于下一代透明电子产品.
  • 在红外光探测,成像和透明热电器件的应用中,PBT显示出前景.