Synthesis and Characterization of Functionalized Polyethylene Surfaces

我们建议用表面聚合的方法来改性聚烯烃聚合物。我们的目标是适应现有的合成方法，并开发新的程序，将引发剂纳入聚烯烃的表面界面。所提出的反应和方法在溶液态研究和前期工作中已有先例。我们的合成设计纳入光谱标签，以促进改性聚合物表面聚合前后的表征。XPS光谱、IR光谱和常规物理分析（如接触角分析）将用于表征改性表面。荧光标记结合表面或溶液中的淬火基团将用于研究这些界面的二维和三维特征以及接枝聚合对这些界面的影响。我们提出的程序有望提供现有接枝化学无法提供的合成控制水平。＊＊＊

9308414 Bergbreiter We propose to modify polyolefins polymers by surface polymerization. We aim to adapt existing synthetic methods and develop new procedures to incorporate initiators into the surface interphase of polyolefins. The proposed reactions and methods have precedent in solution-state studies and in preliminary work. Our syntheses are designed to incorporate spectroscopic labels to facilitate characterization of the modified polymers before and after surface polymerizations. XPS spectroscopy, IR spectroscopy and conventional physical analyses such as contact angle analysis will be used to characterize the modified surfaces. Fluorescent labels in conjunction with quenching groups elsewhere on the surface or in solution will be used to study the 2- and 3- dimensional character of these interfaces and the effect of graft polymerization on these interfaces. Our proposed procedures promise to provide levels of synthetic control not available with existing grafting chemistry. ***