"Design, Synthesis, and Characterization of New Electroactive and Photoactive Conjugated Oligomers and Polymers"

“新型电活性和光活性共轭低聚物和聚合物的设计、合成和表征”

• 批准号: 46547-2012
• 负责人: Leclerc, Mario
• 金额: $ 10.2万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545034
• 关键词: Design; Synthesis; Characterization; New; Electroactive

Conjugated polymers have received a lot of attention since they combine the best features of metals or inorganic materials with those of synthetic polymers. This synergy not only makes these materials useful in existing devices but also creates completely new opportunities. In our research projects, we want to investigate new electroactive and photoactive oligomers and polymers for applications in plastic electronics. More precisely, in a first project, we want to develop new synthetic strategies for the so-called green synthesis of new conjugated polymers. This approach should not only create already known polymers in an easier, faster, cheaper, and cleaner way but should also allow the synthesis of novel well-defined polymers not available through traditional polymerization reactions. These polymers should be particularly interesting for the development of flexible and low-cost solar cells. In another project, we intend to develop novel building blocks for conjugated polymers. In particular, we will focus on new sulfur derivatives (i.e. thioketones) of thienopyrrolediones, diketopyrrolopyrroles, and isoindigo-like units. In parallel, we intend to prepare and investigate amphiphilic oligomers and polymers derived from diketopyrrolopyrrole and isoindigo-like units. Langmuir-Blodgett technique will be utilized to prepare various thin films with different structural orientation. This work should shed some light on the charge transport and energy transfer within conjugated molecules. Finally, in a third project, we want to develop new polymeric biosensors for the direct detection of cancer biomarkers such as DNA hypermethylation. These tools could also be employed to directly detect the present of various bacteria in water. These three original research projects on different conjugated oligomers and polymers should lead to a rational design of a new generation of electroactive and photoactive materials with optimized physical properties. All these studies should therefore enlarge the possibilities of applications of organic materials and should therefore benefit to both the industry and the public.

共轭聚合物由于将金属或无机材料的最佳特性与合成聚合物的最佳特性联合收割机相结合而受到广泛关注。这种协同作用不仅使这些材料在现有设备中有用，而且还创造了全新的机会。在我们的研究项目中，我们希望研究用于塑料电子产品的新型电活性和光活性低聚物和聚合物。更确切地说，在第一个项目中，我们希望开发新的合成策略，用于所谓的新共轭聚合物的绿色合成。这种方法不仅可以以更简单、更快、更便宜和更清洁的方式产生已知的聚合物，而且还可以合成通过传统聚合反应无法获得的新型明确定义的聚合物。这些聚合物对于开发柔性和低成本的太阳能电池应该特别感兴趣。在另一个项目中，我们打算开发共轭聚合物的新型结构单元。特别是，我们将专注于新的硫衍生物（即硫酮）的噻吩并吡咯二酮，二酮基吡咯并吡咯，和异靛蓝样单位。 在平行，我们打算制备和研究两亲性低聚物和聚合物衍生的二酮基吡咯并吡咯和异靛蓝样单位。利用Langmuir-Blodgett技术可以制备出具有不同结构取向的薄膜。这一工作对共轭分子内的电荷输运和能量转移有一定的启示。 最后，在第三个项目中，我们希望开发新的聚合物生物传感器，用于直接检测癌症生物标志物，如DNA超甲基化。这些工具也可以用来直接检测水中各种细菌的存在。这三个关于不同共轭低聚物和聚合物的原始研究项目应该导致具有优化物理性能的新一代电活性和光活性材料的合理设计。因此，所有这些研究应扩大有机材料应用的可能性，从而使工业和公众受益。