Two-Dimensional Polymers

本世纪的聚合物科学集中于线性链， 其衍生物如星星聚合物、环、梳、梯， 以及非线性延伸，如支化聚合物和三个 多维网络 这是一个探索转换的建议 将构成“本体”聚合物的分子转变为二维形式 类似于厚度为“低聚物”尺寸的片材。 主要调查人员已经确定了一个可能的 合成途径来实现这一目标，但方法涉及 使用相当复杂的前体。 这里提出的工作是 主要目的是合成简化途径， 二维聚合物。 具体而言，建议遵循 几种不同复杂程度的方法。 一 方法涉及使用具有联苯核的smectogens， 另一种是使用活性聚合来构建必要的 反应性低聚物。 其他合成途径与那些 已经在首席研究员的实验室开发， 对映体富集的手性前体。 在新方法中， 对映体纯度的要求被放宽和取代 几个立体中心的存在。 这是一个探索性研究的小补助金（SGER）。

Polymer science in this century has focused on the linear chain and its derivatives such as star polymers, rings, combs, ladders, as well as nonlinear extensions such as branched polymers and three dimensional networks. This is a proposal to explore the conversion of molecules making up "bulk" polymers to two-dimensional forms analogous to sheets with thicknesses of "oligomeric" dimension. The principal investigators has already identified a possible synthetic pathway to achieve this goal but the methodology involves the use of fairly complex precursors. The work proposed here is aimed primarily at the synthetic simplification of pathways for two-dimensional polymers. Specifically it is proposed to follow several approaches with different levels of complexity. One approach involves the use of smectogens with biphenylic cores, and another the use of living polymerization to construct the necessary reactive oligomers. Other synthetic pathways are similar to those already developed in the principal investigator's laboratory using enantiomerically enriched chiral precursors. In the new approach, the requirement of enantiomeric purity is relaxed and substituted for the presence of several stereogenic centers. This is a Small Grant for Exploratory Research (SGER).