Development of Stimuli-responsive Polymer Hybrid Materials

刺激响应聚合物杂化材料的开发

• 批准号: RGPIN-2016-04101
• 负责人: Zhao, Yue
• 金额: $ 5.46万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=691822
• 关键词: Development; Stimuli; responsive; Polymer; Hybrid

Our research program aims to discover smart materials comprising an organic polymer and an inorganic nanoparticle, which can accomplish a specific function by responding to stimuli as a result of concerted action of the two constituents. On the one hand, using the photothermal effect generated by gold nanoparticles (AuNPs) or nanorods (AuNRs), we develop the next-generation polymers that not only can undergo light-controlled reversible deformation and motion but also can be reprocessed or reshaped. On the other hand, we propose to develop a unique type of nanoreactors and nanovectors for stimuli-switchable catalysis and stimuli-controlled cargo release, respectively. These nanosystems are built up with either an AuNP or AuNR or upconverting nanoparticle (UCNP) inside a hollow polymer shell. Through rational design, in aqueous solution the polymer shell can switch between a swollen (open) and shrunk (closed) state upon a small change in temperature or pH or upon exposure to light, which activates or shuts down the catalytic activity of AuNPs of the nanoreactor, or the release of cargo from the nanovector. These novel functional materials could offer unprecedented performance and find many possible applications.**

我们的研究计划旨在发现包括有机聚合物和无机纳米颗粒组成的智能材料，该材料可以通过对两个成分的一致作用来响应刺激来完成特定功能。一方面，使用金纳米颗粒（AUNP）或纳米棒（Aunrs）产生的光热效应，我们开发了下一代聚合物，这些聚合物不仅可以经历光控制的可逆变形和运动，而且可以重新处理或重新处理或重塑。另一方面，我们建议分别开发一种独特的纳米反应器和纳米反应器，分别用于刺激性切换催化和刺激控制的货物释放。这些纳米系统是用AUNP或AUNR或在空心聚合物外壳内部构建的。通过合理设计，在水溶液中，聚合物壳可以在温度或pH值较小的较小变化或暴露于光线时在肿胀（开放）和缩小（封闭）状态之间切换，从而激活或关闭Aunps的催化活性纳米反应器，或从纳米维克释放货物。这些新型的功能材料可以提供前所未有的性能并找到许多可能的应用。**