ERA-Chemistry: Photo-Triggered End-Group Conversion of Synthetic Polymers Prepared via Light-Induced Initiation Pathways

ERA-Chemistry:通过光诱导引发途径制备的合成聚合物的光触发端基转化

基本信息

项目摘要

In the proposed project, an Austrian (Graz University of Technology) and a German group (Karlsruhe Institute of Technology, KIT), with a complementary set of skills, join forces for the in-depth study of photolytically triggered radical transformation pathways of synthetic polymers generated via photoinitiation processes. The aim of the project is to arrive at an encompassing mechanistic understanding of the underpinning reactions that occur when well-defined photolytically generated synthetic polymers are subjected to secondary irradiation processes. Data on such processes is very scarce, yet of paramount importance to (i) judge the propensity of photo-generated polymers to change their end-group characteristics upon post-irradiation or during the primary irradiation process, which can significantly affect their performance and (ii) to exploit UV-triggered end-group transformations for the post-modification of photolytically generated polymers. To obtain the required underpinning mechanistic data, well-defined polymers generated via pulsed laser induced polymerization process will be prepared and subjected to a combination of analytical on-line (in-situ UV-irradiation analysis) and off-line (post UV-irradiation analysis) methodologies, including size exclusion chromatography coupled to mass spectrometry (SEC/ESI-MS), chemically-induced dynamic nuclear polarization (CIDNP) NMR as well as electron paramagnetic resonance (EPR) spectroscopy. The result of the project will be a first-time thorough understanding of the radical end-group transformation pathways for a series of photoinitiator/monomer systems and the establishment of guiding principles that dictate these processes as a function of the photolytically introduced end-groups as well as the type of employed monomer.
在拟议的项目中,奥地利(Graz技术大学)和一个德国集团(Karlsruhe Technology,套件)具有互补的技能,与通过光启动过程生成的合成聚合物的光解触发的激进转化途径进行了深入研究。该项目的目的是使对良好定义的光解产生的合成聚合物进行次级辐照过程的基础反应具有包含的机械理解。有关此类过程的数据非常稀缺,但对于(i)判断照片生成的聚合物的倾向至关重要。 To obtain the required underpinning mechanistic data, well-defined polymers generated via pulsed laser induced polymerization process will be prepared and subjected to a combination of analytical on-line (in-situ UV-irradiation analysis) and off-line (post UV-irradiation analysis) methodologies, including size exclusion chromatography coupled to mass spectrometry (SEC/ESI-MS), chemically-induced dynamic nuclear极化(CIDNP)NMR以及电子顺磁共振(EPR)光谱。该项目的结果将是对一系列光引发剂/单体系统的激进终端转化途径的首次彻底理解,以及建立指导原理,这些原理将这些过程决定这些过程是光解引入的端组以及使用的单体类型的函数。

项目成果

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Professor Dr. Christopher Barner-Kowollik其他文献

Professor Dr. Christopher Barner-Kowollik的其他文献

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{{ truncateString('Professor Dr. Christopher Barner-Kowollik', 18)}}的其他基金

Reprogrammable and Light-Adaptive Mechanical Gradients in Waterborne High-Performance Nanocellulose Materials
水性高性能纳米纤维素材料中的可重编程和光自适应机械梯度
  • 批准号:
    289996893
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Bioorthogonal Nanodiamond / Glycopolymer Hybrid Design to Simulate the Structure of Viruses
生物正交纳米金刚石/糖聚合物杂化设计模拟病毒结构
  • 批准号:
    271285424
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Polymeric Nanocarriers for the Visualization and Quantification of Molecular Release
用于分子释放可视化和定量的聚合物纳米载体
  • 批准号:
    265519003
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Biomolecular Patterning of 3-Dimensional Polymeric Microscaffolds for Targeted Cell Attachment
用于靶向细胞附着的 3 维聚合物微支架的生物分子图案
  • 批准号:
    241508177
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Synthesis and Mechanical Properties of Linear and Long-Chain Branched Homopolymer Topologies via Modular Ligation
通过模块化连接的线性和长链支化均聚物拓扑的合成和机械性能
  • 批准号:
    216692037
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Cyclodextrin-vermittelte RAFT-Polymerisation als Zugang für komplexe makromolekulare Strukturen
环糊精介导的 RAFT 聚合作为复杂大分子结构的门户
  • 批准号:
    178687492
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Efficient Switching of RAFT to Hydroxy Capped Polymers as Versatile Scaffolds for Block Copolymer Synthesis
RAFT 有效转换为羟基封端聚合物作为嵌段共聚物合成的多功能支架
  • 批准号:
    165300460
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Orthogonal Modification of Biopolymers with Variable Peptide Sequences via Ultra-Rapid Covalent Modification
通过超快速共价修饰对具有可变肽序列的生物聚合物进行正交修饰
  • 批准号:
    175717199
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Photo-Induced Polymerization Reactions: Quantitative Information via Mass Spectrometry and Femtosecond Pump-Probe Absorption Studies
光诱导聚合反应:通过质谱和飞秒泵浦探针吸收研究获得定量信息
  • 批准号:
    158927932
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Facile synthesis of macromonomers and their utilization for building complex polymer architectures
大分子单体的简便合成及其用于构建复杂聚合物结构的用途
  • 批准号:
    101210796
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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