New Materials and Processes by Carbocationic Polymerization

本提案的目的是了解并最终控制碳阳离子聚合的机制，从而分别开发有用的新材料和新工艺，以及现成的单体和设备。这个总体目标包括六个主要的具体（和许多次要）目标：1)探索最近发现的活碳阳离子聚合的基本原理；2)扩大这类制度的适用范围；3)开展共聚物种子实验；5)小分子;6)将阳离子聚合与活阴离子聚合相结合，合成其他迄今为止无法获得的材料。实现这些目标的方法部分已经到位（传统技术与新技术相结合），部分还有待开发。这项研究对于创造基础知识具有重要意义，然而，这些知识可用于制备具有独特性能的新特种材料和新的多用途聚合工艺。这些可能性包括：用于人造器官和药物输送控制的生物材料的新型两亲性网络，用于工程应用的新型大分子，用于混合的新型涂层，新型双嵌块等。

The objective of this proposal is to understand and consequently to control the mechanism of carbocationic polymerizations, and thus to develop useful new materials and processes of readily available monomers and equipment, respectively. This overall objective embraces six major specific (and numerous subordinate) objectives: 1) To explore the fundamentals of recently discovered living carbocationic polymerizations; 2) To expand the scope of such systems; 3) To exploit seed experiments for copolymers; 5) Macromers; and 6) To combine cationic with living anionic polymerization for the synthesis of other hitherto unavailable materials. The methodologies toward these objectives are partly in place (conventional techniques in combination with new techniques) and partly will be developed. This research is significant for the creation of basic knowledge which is, however, exploitable for the preparation of new specialty materials with a combination of unique properties and for new multipurpose polymerization processes. The possibilities include: New amphiphilic networks for biomaterials for artificial organs and controlled drug delivery, new macromers for engineering applications, new coatings, new diblocks for blending, etc.