U.S.-Japan Cooperative Research: Extension of the Bond-Forming Initiation Theory to Electrophilic p-Quinodimethane Polymerization

该奖项将支持一个合作研究项目， 亨利K.小霍尔， 亚利桑那大学化学系教授 Shouji Iwatsuki和Takahito Itoh，三重县工学院 日本名古屋大学。 科学家们将研究 富含电子的亲电给体烯烃 醌二甲烷。 霍尔教授以前的研究 富电子烯烃与贫电子， 受体烯烃导致了他的键形成的发展 引发理论，提出四亚甲基 中间体，无论是离子或自由基，是引发剂 自发聚合反应经常发生在 这些系统。 这个理论成功地解释了 在烯烃-烯烃体系中获得的结果， 该项目的研究人员希望研究其扩展， 烯烃与醌二甲烷的反应 霍尔博士是一位有机聚合物化学家， 具有合成新单体和聚合物的经验， 研究聚合反应的基本机理。 博士 伊藤已经合成了多种新型的醌二甲烷， 研究了它们的聚合反应 他最近花了 在亚利桑那州霍尔博士的实验室里， research. 美国和日本科学家将合作， 合成特别适合于这些研究的单体， 试图捕获反应中间体，并在进行 详细的反应动力学研究。 一些 这里要研究的聚合物具有潜在的应用， 非线性光学材料等高科技领域， 压电材料

This award will support a cooperative research project in polymer chemistry between Professor Henry K. Hall, Jr., Department of Chemistry, University of Arizona, and Professors Shouji Iwatsuki and Takahito Itoh, Faculty of Engineering, Mie University, Nagoya, Japan. The scientists will study reactions of electron-rich, donor olefins with electrophilic quinodimethanes. Previous studies by Professor Hall on reactions of electron-rich olefins with electron-poor, acceptor olefins led to development of his Bond-Forming Initiation Theory, which proposes that tetramethylene intermediates, either ionic or free-radical, are the initiators of the spontaneous polymerizations that frequently occur in these systems. This theory has been successful in explaining results obtained in the olefin-olefin systems, and the investigators in this project wish to examine its extension to reactions of olefins with quinodimethanes Dr. Hall, an organic polymer chemist, has considerable experience in synthesizing new monomers and polymers and in investigating the basic mechanisms of polymerization. Dr. Itoh has synthesized a variety of novel quinodimethanes and has studied their polymerization reactions. He recently spent a year in Dr. Hall's laboratory in Arizona pursuing this research. The U.S. and Japanese scientists will cooperate in synthesizing monomers especially suited for these studies, in attempting to trap reaction intermediates, and in carrying out detailed kinetic studies of the reactions. Some of the polymers to be investigated here have potential applications in such high-technology areas as non-linear optical materials and piezoelectric materials.