New Approaches Towards Highly Stretchable and Self-Healable Conjugated Polymers

开发高拉伸性和自修复共轭聚合物的新方法

• 批准号: RGPIN-2017-06611
• 负责人: RondeauGagné, Simon
• 金额: $ 1.53万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=712274
• 关键词: New; Approaches; Towards; Highly; Stretchable

Conjugated materials, especially semiconducting polymers, are an interesting class of compounds for a wide variety of applications. More specifically, these materials have suitable properties for use in organic electronics and they also possess a high solubility that allows for device fabrication and manufacturing via large-scale printing methods. Moreover, good mechanical and optical properties make semiconducting polymers an ideal platform for the development of stretchable and self-healing devices with great potential in wearable electronics and healthcare. In most organic electronic devices, the performance is mainly limited due to morphological issues. Given their high crystallinity and rigidity, the mechanical properties of conjugated polymers have to be optimized in order to increase their strain tolerance and performance. Thus, novel methods to obtain ordered and nanostructured conjugated polymers that can tolerate extreme environmental conditions (strain, puncture, heat, etc.) are highly desirable for the expansion of this technology. The unifying theme of this research program is to exploit the unique opportunity given by supramolecular chemistry to design and prepare robust and self-healable semiconducting polymeric materials. To reach this goal, a rational design of the conjugated polymers and organic materials will be performed. By incorporating various types of functionalities allowing supramolecular interactions, a carefully controlled modulation of the polymer morphology is possible. The resulting ordered and well-defined polymer networks will enhance the charge-transport and mechanical properties. We also propose to incorporate conjugated crosslinking moieties that will link, fix and rigidify the polymer chain network, thereby improving the overall charge transport within the materials. To this end, after supramolecular self-assembly of the conjugated polymer chains, a novel and efficient crosslinking methodology will be used via polydiacetylene formation to give access to structurally innovative and mechanically robust stretchable conjugated polymers. From a broad perspective, the synthesis and development of stretchable and self-healable organic materials, as well as new crosslinking methodologies, are of great interest for the development of new innovative organic functional materials. The materials and strategies developed will lead and contribute to the evolution of revolutionary technologies such as wearable and flexible electronics. This unique research program will also contribute to the training of highly qualified scientists with a diverse set of skills at the interface of chemistry, physics and engineering which will benefit Canadian private and public research. These projects will also educate and train graduate and undergraduate students in chemical synthesis and molecular design in materials science.

共轭材料，特别是半导体聚合物，是一类有趣的化合物，具有广泛的应用。更具体地说，这些材料具有适用于有机电子产品的特性，并且它们还具有高溶解度，允许通过大规模印刷方法进行器件制造和制造。此外，良好的机械和光学性能使半导体聚合物成为开发可拉伸和自修复设备的理想平台，在可穿戴电子和医疗保健领域具有巨大潜力。在大多数有机电子器件中，性能主要由于形态问题而受到限制。鉴于其高结晶度和刚性，共轭聚合物的机械性能必须进行优化，以提高其应变公差和性能。因此，获得可以耐受极端环境条件（应变、穿刺、热等）的有序和纳米结构的共轭聚合物的新方法被认为是一种有效的方法。对于该技术的扩展是非常期望的。 该研究计划的统一主题是利用超分子化学提供的独特机会来设计和制备坚固且可自我修复的半导体聚合物材料。为了达到这一目标，将进行共轭聚合物和有机材料的合理设计。通过引入允许超分子相互作用的各种类型的官能团，可以仔细控制聚合物形态的调节。由此产生的有序和良好定义的聚合物网络将增强电荷传输和机械性能。 我们还建议将共轭交联部分，将链接，固定和刚性化的聚合物链网络，从而改善材料内的整体电荷传输。为此，在共轭聚合物链的超分子自组装之后，将通过聚二乙炔形成使用新颖且有效的交联方法，以获得结构创新且机械稳健的可拉伸共轭聚合物。从更广泛的角度来看，可拉伸和自修复有机材料的合成和开发，以及新的交联方法，对于开发新型创新有机功能材料具有极大的意义。所开发的材料和策略将引领并促进可穿戴和柔性电子等革命性技术的发展。 这一独特的研究计划还将有助于培养高素质的科学家，他们在化学，物理和工程的界面上具有多种技能，这将使加拿大的私人和公共研究受益。这些项目还将教育和培训材料科学中化学合成和分子设计方面的研究生和本科生。