CAREER: Novel Approaches to Hyperbranched Polymers

职业:超支化聚合物的新方法

基本信息

项目摘要

With the support of the Macromolecular, Supramolecular and Nanochemistry program in the Division of Chemistry, Michael D. Schulz of Virginia Polytechnic Institute and State University is developing self-condensing ring opening metathesis polymerization (ROMP) to prepare hyperbranched polymers. Highly and hyperbranched polymers are tree-like 3D macromolecules that have very different viscosity characteristics when compared to linear polymers. As a result, hyperbranched polymers have been applied in various applications ranging from their use as additives to coatings and as sensors, as high loading supports in combinatorial chemistry, and as homogeneous catalysts. In this research, inimers—small molecules that can act as both an initiator and a monomer—will first be synthesized. Structural modifications will also be conducted to optimize polymerization activity. Successfully prepared inimers will then be used in self-condensing polymerization to prepare several hyperbranched polymers with interesting structural and mechanical properties. This research has the potential to lay the foundation for the synthesis of new class of plastics with controlled macromolecular structures. The project will also serve as an excellent vehicle for training students in polymer chemistry and catalysis. A chemistry-themed educational outreach with demonstrations at the Science Museum of West Virginia will focus on polymers in the modern world and how their properties are dependent on chemical structure. A travelling kit will also be developed for visits to rural communities that are under-resourced in science education. The project will focus on controlled synthesis of hyperbranched polymers using ruthenium-catalyzed self-condensing ring opening metathesis polymerization (ROMP). The central approach will involve the preparation of latent-initiating olefin metathesis catalysts with modified benzylidene ligands that will be coupled to a ROMP monomer, producing an olefin metathesis inimer. The synthesized inimers will be systematically investigated to examine the effects of structural modification on latency control, activation, and polymerization properties. Successful candidates will then be used to prepare hyperbranched polymers. A strong focus will be on investigating the interplay among polymerization conditions, polymerization kinetics, hyperbranched structures, and strategies for end-group modification. Lastly, structure-property relationships in the synthesized polymers will be systematically investigated. This project has the potential to produce a powerful strategy to synthesize hyperbranched ROMP polymers with controlled branching, repeat-unit functionality, and end-groups.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
在化学系高分子、超分子和纳米化学项目的支持下,弗吉尼亚理工学院暨州立大学的Michael D. Schulz正在开发自缩合开环易位聚合(ROMP),以制备高度支化聚合物和超支化聚合物。与线性聚合物相比,树状 3D 大分子具有非常不同的粘度特性,因此形成超支化聚合物。已被应用于各种应用,从用作涂料添加剂和传感器,用作组合化学中的高负载载体,以及用作均相催化剂。首先将进行结构修饰以优化聚合活性,然后将成功制备的单体用于自缩合聚合以制备具有有趣结构和机械性能的超支化聚合物。该研究有可能为合成具有受控大分子结构的新型塑料奠定基础,该项目还将作为培训学生进行高分子化学和催化方面的教育的绝佳工具。西弗吉尼亚州科学博物馆将重点关注现代世界的聚合物以及它们的特性如何取决于化学结构,还将开发一个旅行套件,用于参观科学教育资源不足的农村社区。关于合成使用钌催化自缩合开环复分解聚合(ROMP)的超支化聚合物的核心方法将涉及制备具有改性亚苄基配体的潜在引发烯烃复分解催化剂,该催化剂将与 ROMP 单体偶联,产生烯烃复分解引发剂。将系统地研究合成的引发剂,以检查结构修饰对潜伏期控制、活化和聚合性能的影响。然后,候选材料将用于制备超支化聚合物。该项目有潜力产生一种强大的策略来合成具有受控支化、重复单元功能和端基的超支化 ROMP 聚合物。该奖项反映了 NSF 的法定使命,并已被视为。值得通过使用基金会的智力优点和更广泛的影响审查标准进行评估来支持。

项目成果

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Michael Schulz其他文献

hIAPP forms toxic oligomers in plasma.
hIAPP 在血浆中形成有毒低聚物。
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    Diana C Rodriguez Camargo;Divita Garg;Katalin Buday;Andras Franko;Andres Rodriguez Camargo;Fabian Schmidt;Sarah J Cox;Saba Suladze;M. Haslbeck;Yonatan G. Mideksa;G. Gemmecker;M. Aichler;Gabriele Mettenleiter;Michael Schulz;A. Walch;M. Hrabě de Angelis;Matthias J. Feige;César A. Sierra;M. Conrad;K. Tripsianes;A. Ramamoorthy;B. Reif
  • 通讯作者:
    B. Reif
Survey of academic staff and higher degree research students in a university school of health and rehabilitation sciences about practices, attitudes, knowledge and confidence in knowledge translation and communicating impact
对大学健康与康复科学学院的学术人员和更高学位的研究生进行的调查,内容涉及知识转化和传播影响的实践、态度、知识和信心
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Emmah Doig;Megan L Auld;S. Bennett;Michael Schulz;Annie J Hill;J. Setchell;Emma Finch;D. Schmulian;Bhavya Adalja;P. Hodges
  • 通讯作者:
    P. Hodges
CERESMIP: a climate modeling protocol to investigate recent trends in the Earth's Energy Imbalance
CERESMIP:用于研究地球能源失衡最新趋势的气候建模协议
  • DOI:
    10.3389/fclim.2023.1202161
  • 发表时间:
    2023-07-03
  • 期刊:
  • 影响因子:
    0
  • 作者:
    G. Schmidt;T. Andrews;S. Bauer;P. Durack;N. Loeb;V. Ramaswamy;N. Arnold;M. Bosilovich;J. Cole;L. Horowitz;G. Johnson;J. Lyman;B. Medeiros;T. Michibata;Dirk Olonscheck;D. Paynter;Shivaranjan Raghuraman;Michael Schulz;Daisuke Takasuka;V. Tallapragada;P. Taylor;T. Ziehn
  • 通讯作者:
    T. Ziehn
Multitasking-Strategien in der Mensch-Maschine-Interaktion
人机交互的多任务策略
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    J. Kiefer;Michael Schulz;Dirk Schulze;L. Urbas
  • 通讯作者:
    L. Urbas
Understanding online product ratings: A customer satisfaction model
  • DOI:
    10.1016/j.jretconser.2015.07.010
  • 发表时间:
    2015-11-01
  • 期刊:
  • 影响因子:
    10.4
  • 作者:
    Tobias H. Engler;Patrick Winter;Michael Schulz
  • 通讯作者:
    Michael Schulz

Michael Schulz的其他文献

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{{ truncateString('Michael Schulz', 18)}}的其他基金

Coherence Effects: A Sensitive Tool to Study the Few-Body Dynamics in Simple Atomic Systems
相干效应:研究简单原子系统中少体动力学的敏感工具
  • 批准号:
    2011307
  • 财政年份:
    2020
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
Few-Body Dynamics in Simple Atomic Systems
简单原子系统中的少体动力学
  • 批准号:
    1703109
  • 财政年份:
    2017
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
Coherence Effects and Few-Body Dynamics in Atomic Fragmentation Processes
原子碎片过程中的相干效应和少体动力学
  • 批准号:
    1401586
  • 财政年份:
    2014
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
NSF East Asia and Pacific Summer Institute (EAPSI) for FY 2013 in Japan
2013 财年 NSF 东亚及太平洋夏季学院 (EAPSI) 在日本举行
  • 批准号:
    1310869
  • 财政年份:
    2013
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Fellowship Award
Many-Body Collision Dynamics Involving Particles and Antiparticles
涉及粒子和反粒子的多体碰撞动力学
  • 批准号:
    0969299
  • 财政年份:
    2010
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Standard Grant
String compactification, generalized geometry, and 4D physics
弦紧化、广义几何和 4D 物理
  • 批准号:
    0912219
  • 财政年份:
    2009
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Standard Grant
Few-Body Dynamics of Atomic Reactions Induced by Particles and Anti-Particles
粒子和反粒子引起的原子反应的少体动力学
  • 批准号:
    0652519
  • 财政年份:
    2007
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: Self-Consistent Ring-Current Particle Transport Simulations
合作研究:自洽环流粒子输运模拟
  • 批准号:
    0548915
  • 财政年份:
    2006
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
Few-Body Dynamics of Ionization Processes Induced by Particles and Anti-Particles
粒子和反粒子引起的电离过程的少体动力学
  • 批准号:
    0353532
  • 财政年份:
    2004
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Continuing Grant
U.S. Germany Cooperative Research: Three-Dimensional Imaging of Ionizing Collisions
美德合作研究:电离碰撞三维成像
  • 批准号:
    0224943
  • 财政年份:
    2002
  • 资助金额:
    $ 72.5万
  • 项目类别:
    Standard Grant

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