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

美日合作研究：成键引发理论扩展到亲电对醌二甲烷聚合

• 批准号: 8914195
• 负责人: Henry Hall
• 金额: $ 1.48万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1992-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914195&HistoricalAwards=false
• 关键词: U.S.; Japan; Cooperative; Research; Extension

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.

该奖项将支持亚利桑那大学化学系 Henry K. Hall, Jr. 教授与日本名古屋三重大学工程学院 Shouji Iwatsuki 和 Takahito Itoh 教授之间的高分子化学合作研究项目。 科学家们将研究富电子供体烯烃与亲电子醌二甲烷的反应。 霍尔教授之前对富电子烯烃与缺电子受体烯烃反应的研究导致了他的成键引发理论的发展，该理论提出四亚甲基中间体，无论是离子的还是自由基的，都是这些系统中经常发生的自发聚合的引发剂。 该理论成功地解释了在烯烃-烯烃系统中获得的结果，该项目的研究人员希望研究其对烯烃与醌二甲烷反应的扩展。霍尔博士是一位有机聚合物化学家，在合成新单体和聚合物以及研究聚合的​​基本机理方面拥有丰富的经验。 Itoh 博士合成了多种新型醌二甲烷并研究了它们的聚合反应。 他最近在亚利桑那州霍尔博士的实验室花了一年时间进行这项研究。 美国和日本科学家将合作合成特别适合这些研究的单体，试图捕获反应中间体，并对反应进行详细的动力学研究。 这里要研究的一些聚合物在非线性光学材料和压电材料等高科技领域具有潜在的应用。