'Duranes': Ultrahard High-Strength Organic Polymeric Materials

9704143 Wudl这个项目将开发一种新的方法来获得扩展网络的非常高强度的有机聚合物材料。其中一些材料将是超硬的，另一些将是“有机沸石：。将采用三种方法：(A)制备以偏二烯(在约220℃时发生反应的碳氢化合物)为侧基的新聚合物和共聚物，(B)制备偏二烯进行环加成聚合形成主链的新聚合物，以及(C)基于可逆Diels Alder聚合和偏二烯环加成二聚反应和C60的多重环加成反应制备新的扩展网络聚合物。一旦制备完成，新的聚合物材料将使用材料科学和实验凝聚态物理的最新技术来测定其机械、光学和电子性能。这些新型聚合物材料应该有潜在的应用，如强度接近金刚石的结构材料，催化剂载体等，并可能打开合理设计的新家族的大门，三维扩展固体。***

9704143 Wudl This project will develop a new approach to extended-network, very high strength organic polymeric materials. Some of these materials will be ultrahard, others will be "organic zeolites:. Three approaches will be pursued: (a) preparation of new polymers and copolymers where pleiadene (a hydrocarbon which becomes reactive at ca 220 degrees C) is a pendant group, (b) preparation of new polymers in which pleiadene undergoes cycloaddition polymerization to form the backbone, and c preparation of new extended network polymers based on reversible Diels Alder polymerizations and on the pleiadene cycloaddition dimerization reaction and multiple cycloaddition to C60. Once prepared, the new polymeric materials will have their mechanical, optical and electronic properties determined using the latest techniques in materials science and experimental condensed matter physics. %%% These novel polymeric materials should have potential applications as structural materials of strengths approaching diamond as catalyst supports, etc., and may open the door to new families of rationally designed, three-dimensional extended solids. ***