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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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用于低压电子产品的溶液加工的高k光聚合物.

Qingqing Sun1, Hongwei Ge1, Shuai Wang1

  • 1School of Materials Science and Engineering, State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University, Zhengzhou 450001, China. liuxy@zzu.edu.cn.

Materials horizons
|August 29, 2024
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概括
此摘要是机器生成的。

新的高压电常数 (high-k) 聚合物使用UV交联为灵活的电子产品进行了合成. 这些聚合物提供了高性能,稳定性和可模拟性,使低压晶体管和先进的应用,如人工视觉神经.

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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
  • 有机电子 有机电子

背景情况:

  • 高介电常数 (k) 的聚合物对于灵活的低功耗电子设备至关重要.
  • 现有的材料往往需要高加工温度或缺乏足够的稳定性.

研究的目的:

  • 设计和合成可溶液处理的高k聚合物,在低温下通过紫外线触发的交联.
  • 评估它们在电子设备中的性能,重点关注介电性质,稳定性和可模拟性.

主要方法:

  • 在60°C时通过UV触发的交联合成高k聚合物.
  • 交联聚合物网络属性的表征 (耐溶剂,分解强度).
  • 印度氧化 (IGZO) 薄膜晶体管 (TFT) 和柔性有机TFT的制造和测试.

主要成果:

  • 由于极性蓝吊,可以达到高压电常数 (k) 高达10.
  • 证明了高分解强度 (> 2 MV cm-1),耐溶剂,以及1μm的特征尺寸图案.
  • 制造的低压 (5 V) IGZO TFT具有高场效移动性 (> 20 cm2 V-1 s-1).
  • 开发出灵活的TFT,具有出色的机械稳定性 (1000个周期在5毫米的曲半径) 和辐射稳定性.

结论:

  • 可与UV交联的高k聚合物为制造高性能,稳定和灵活的电子设备提供了有前途的途径.
  • 开发的材料可以实现低压操作和先进的应用,包括对人工光神经电路的模式识别.