Polymer dispersed self-assembling small molecules

聚合物分散自组装小分子

• 批准号: 238409-2006
• 负责人: Sundararajan, Pudupadi
• 金额: $ 2.51万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=393916
• 关键词: Polymer; dispersed; self; assembling; small

Studies on supramolecular assembly, mediated by e.g., hydrogen bond and p-stacking interactions is an active area of research at this time. Controlling such assembly to provide optimum morphology (e.g., for inkjet applications) was the purpose of our studies on carbamates with alkyl side chains of different lengths. These molecules also form organo-gels in specific solvents. We also reported the micellar and vesicular assembly of perylene end-capped poly (dimethyl siloxane) due to the self-assembly of the perylene via p-stacking. Here the self-assembled molecules form phase separated aggregate structures in the polymer matrix This proposal aims at studying the morphologies of polymer composites in which these self-assembling molecules are dispersed and at exploring the means of controlling these. Although there have been studies on the morphology of polymer dispersed liquid crystals, to the best of our knowledge, those involving self-assembling small molecules have not been explored so far. We believe that no study has been reported where self- assembling molecules are dispersed in the matrix, and how the self-assembly is perturbed or facilitates novel morphological designs. We are initiating such studies. Polymer gels with small molecules have never been reported so far. Thus, this is a new and novel area of research, which could lead to a wide range of applications and related studies. We believe that we are thus opening up a new direction of research. Thus, (1) Self-assembling small molecules will be dispersed in a polymer matrix and we will study how the dispersion of the small molecule is affected by the hydrogen bond, p-stacking or similar interactions. The basic molecular mechanisms will be studied. (2) Polymeric amphiphilic systems, using functional molecules appropriate to optoelectronic and photonic applications will be designed and means to control their self-assembled morphologies will be studied. (3) Polymer gels incorporating such self-assembling molecules will also be prepared.

超分子组装的研究目前是一个活跃的研究领域，它是由氢键和p-堆积相互作用所介导的。控制这种组装以提供最佳的形态(例如，用于喷墨应用)是我们研究具有不同长度的烷基侧链的氨基甲酸酯的目的。这些分子还在特定的溶剂中形成有机凝胶。我们还报道了聚二甲基硅氧烷聚二甲基硅氧烷的胶束和泡囊组装，这是由于聚二甲基硅氧烷通过p-堆积自组装而形成的。在这里，自组装分子在聚合物基质中形成相分离的聚集体结构，该方案旨在研究这些自组装分子分散在其中的聚合物复合材料的形态，并探索控制这些形态的方法。虽然已经有关于聚合物分散液晶形态的研究，但就我们所知，那些涉及自组装小分子的研究到目前为止还没有被探索过。我们认为，还没有关于自组装分子分散在基质中的研究，以及自组装是如何被干扰或促进新的形态设计的。我们正在启动这样的研究。具有小分子的聚合物凝胶到目前为止还没有报道。因此，这是一个新的研究领域，可能会导致广泛的应用和相关研究。我们相信，我们正在开辟一个新的研究方向。因此，(1)自组装的小分子将分散在聚合物基质中，我们将研究氢键、p-堆积或类似的相互作用如何影响小分子的分散。将对其基本分子机制进行研究。(2)利用适合于光电子学和光子学应用的功能分子设计聚合物两亲性体系，并研究控制其自组装形态的方法。(3)还将制备含有这种自组装分子的聚合物凝胶。