CAREER: Polyolefin-Inorganic Hybrid Materials

职业:聚烯烃-无机杂化材料

基本信息

  • 批准号:
    0239475
  • 负责人:
  • 金额:
    $ 40万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-01-01 至 2007-12-31
  • 项目状态:
    已结题

项目摘要

The main objective of this award will be the synthesis of novel polyolefin inorganic hybrid copolymers. Investigation of the physical and mechanical properties of these new materials will also be undertaken, and the findings from these studies will then serve to further direct synthetic efforts. By copolymerizing molecularly precise nanometer-scale inorganic particles with simple vinyl monomers development of the fundamental understanding necessary to exploit the resulting structure-property correlation will emerge. Thus, it should be possible to enhance the physical properties of the resulting copolymer hybrids through the anticipated sizable intermolecular interactions that occur between the nanometer-scale particles and through their attachment to polymer chains. These hybrid materials are of great interest in that it may be possible to expand the general utility of commodity polyolefins beyond their current day use. For example, improvement of the strength, toughness, or upper temperature stability of isotactic polypropylene into the realm of engineering resins would allow for use of these hybrid materials in applications that are today dominated by more expensive materials. Pursuit of a chemistry based "bottom-up" approach to the formation of polyolefin nanocomposites will permit harnessing the beneficial thermodynamics associated with self-assembly processes. This will reverse the unfavorable thermodynamics typically encountered in the melt extrusion "top-down" approach to the generation of polymer nanocomposites. Self-assembly processes will thus be used to advantage for generating desired configurations of inorganic particles dispersed in a polyolefin matrix.Research is the vehicle through which some of the most important learning takes place. Research projects offer students the opportunity to not only learn technical skills, experimental techniques, and the process of scientific discovery, but also about how they approach and solve problems and face challenges. This coupled with classroom and other educational opportunities will greatly aid students entering the modern workforce. A new graduate level course will be developed entitled "Industrial Polymers." This course will take a beginning-to-end approach of the chemistry and engineering that are necessary to successfully produce polymeric materials. This is intended to give the students a good technical grasp of the production of a selected set of industrial polymers. This research and development process is what many students will be participating in following completion of their graduate studies. Further leveraging of teaching and outreach activities will also occur through combining efforts with the NSF-sponsored Research Site for Educators in Chemistry (RSEC) on Polymer Chemistry in Western Massachusetts that is in the Polymer Science and Engineering Department at the University of Massachusetts. The goals of this program are (i) to modernize curricula by introducing interdisciplinarity to undergraduate research and education and (ii) to involve faculty and students from local institutions in frontier research in polymer science. The immediate and long-term impacts of this program will be profound. Approximately 60 Bachelors degrees in Chemistry are awarded each year from the participating institutions (nearly 90% women and underrepresented minorities). Teaching modules on polymer chemistry that are appropriate for inclusion in the curricula of the participating institutions will be developed and tested in the classroom. The approach does not advocate a complete change in the curriculum of Chemistry Departments but rather an injection of modern materials chemistry. Successful teaching modules will be disseminated nationally to chemical educators.
该奖项的主要目标是合成新型聚烯烃无机杂化共聚物。还将对这些新材料的物理和机械性能进行调查,这些研究的结果将有助于进一步指导合成工作。通过将分子上精确的纳米级无机颗粒与简单的乙烯基单体共聚,将出现开发由此产生的结构-性质关联所需的基本理解的发展。因此,应该有可能通过纳米级粒子之间发生的预期的大规模分子间相互作用以及通过它们与聚合物链的连接来增强所产生的共聚物杂化的物理性能。这些杂化材料引起了人们的极大兴趣,因为它可能会扩大商品聚烯烃的一般用途,使其超出目前的使用范围。例如,将等规聚丙烯的强度、韧性或高温稳定性提高到工程树脂领域,将允许在当今由更昂贵的材料主导的应用中使用这些杂化材料。寻求一种基于化学的“自下而上”的方法来形成聚烯烃纳米复合材料,将允许利用与自组装过程相关的有益的热力学。这将扭转熔融挤出“自上而下”的方法产生聚合物纳米复合材料时通常遇到的不利热力学。因此,自组装过程将被用来产生分散在聚烯烃基质中的所需构型的无机颗粒。研究是进行一些最重要的学习的媒介。研究项目不仅为学生提供了学习技术技能、实验技术和科学发现过程的机会,还提供了他们如何处理和解决问题以及面对挑战的机会。这一点,再加上课堂和其他教育机会,将极大地帮助学生进入现代劳动力市场。将开发一门名为“工业聚合物”的新研究生课程。本课程将从头到尾讲解成功生产聚合物材料所必需的化学和工程知识。这是为了让学生很好地掌握一套精选的工业聚合物的生产技术。这一研究和开发过程是许多学生在完成研究生学业后将参与的。还将通过与美国国家科学基金会赞助的马萨诸塞州西部化学教育工作者研究网站(RSEC)的努力相结合,进一步利用教学和外联活动,该网站位于马萨诸塞州大学聚合物科学与工程系。该计划的目标是(I)通过在本科研究和教育中引入跨学科来实现课程的现代化,以及(Ii)让来自当地机构的教职员工和学生参与聚合物科学的前沿研究。这一计划的直接和长期影响将是深远的。参与机构每年授予约60个化学学士学位(近90%是妇女和代表不足的少数族裔)。将开发适合纳入参与机构课程的聚合物化学教学单元,并在课堂上进行测试。该方法并不主张完全改变化学系的课程,而是注入现代材料化学。成功的教学模块将在全国范围内传播给化学教育工作者。

项目成果

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Edward Bryan Coughlin其他文献

Edward Bryan Coughlin的其他文献

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{{ truncateString('Edward Bryan Coughlin', 18)}}的其他基金

2013 Polymers GRC and GRS
2013年聚合物GRC和GRS
  • 批准号:
    1338941
  • 财政年份:
    2013
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant
International Collaboration in Chemistry: Block Copolymers with Photocleavable Junctions
国际化学合作:具有光可裂解连接的嵌段共聚物
  • 批准号:
    0924435
  • 财政年份:
    2009
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant
US-India Workshop: Recent Advances in Organometallic Catalysis and Olefin Polymerization, Pondicherry, India, December 2003
美国-印度研讨会:有机金属催化和烯烃聚合的最新进展,印度本地治里,2003 年 12 月
  • 批准号:
    0242938
  • 财政年份:
    2003
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant

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