Synthetic Applications of Non-(Homo) Polymerizable Monomers in Living Carbocationic Polymerization

小行星9806418 除了控制分子量及其分布外，大分子工程的最终目标是获得对影响大分子物理性质的组成和结构变量的高度控制。 在这些活动中，对自组装成有序纳米结构的线性和非线性嵌段结构（例如接枝、梳状、环状、星星或H形聚合物）的设计和构建的兴趣越来越大。 活性阳离子聚合的最新进展与使用非（均）聚单体开发的方法相结合，对这些材料的分子结构提供了前所未有的控制水平。 该项目继续由NSF DMR资助的研究，研究在活性阳离子聚合中使用非（均）可聚合单体的新型线性和非线性嵌段结构的合成，表征和物理性质。 这些活动将得到加强，继续动力学和机制的研究，特别强调解决使用低分子量的模型系统相比，高分子量的类似物。 %上述新型材料将作为模型聚合物，通过跨学科研究活动，促进对高分子结构/性能关系的基本理解，从而能够开发具有上级性能的材料。 ***

9806418 Faust In addition to the control of molecular weights and their distributions, the ultimate goal of macromolecular engineering is to obtain a high degree of control over compositional as well as structural variables which affect the physical properties of macromolecules. Among these activities there has been growing interest on the design and construction of linear and non-linear block architectures, such as graft, comb, ring, star, or H-shaped polymers, that self-assemble into ordered nano-structures. Recent advances in living cationic polymerization coupled with methodologies developed using non-(homo)polymerizable monomers offer an unprecedented level of control over the molecular architecture of these materials. This project continues research funded by NSF DMR on the synthesis, characterization and physical properties of novel linear and non-linear block architectures using non-(homo)polymerizable monomers in living cationic polymerization. These activities will be augmented with continued kinetic and mechanistic studies with special emphasis on addressing the use of low molecular weight model systems in comparison to high molecular weight analogs. %%% The above novel materials will serve as model polymers to advance fundamental understanding in structure/property relationship of macromolecules through interdisciplinary research activities, to enable the development of materials with superior properties. ***