Synthesis of Amine-Terminated Polymers Using Lewis Acid-Induced N-methlyeneamines as Cationic Initiators

使用路易斯酸诱导的 N-亚甲基胺作为阳离子引发剂合成胺封端聚合物

• 批准号: 0717949
• 负责人: Eric Tillman
• 金额: $ 13.5万
• 依托单位: Bucknell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-02-01 至 2011-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0717949&HistoricalAwards=false
• 关键词: Synthesis; Amine; Terminated; Polymers; Using

The development of synthetic methods that lead to polymers with specific functionality at well-defined locations is essential in the design of new polymeric materials. This project focuses on a synthetic pathway that places an amine end group on vinyl polymers at the onset of the polymerization, meaning that the amine group is anchored to the growing polymer chain. The ultimate goal of this research is the synthesis of chemically diverse polymers bearing secondary amine groups at the end of each polymer chain. The ability of the polymeric amine end groups to be transformed further by accepted reactions coupled with their potential use in solid state catalysis makes amine-terminated polymers valuable. Research accomplished by undergraduate students has already established the viability of the proposed work as a means to synthesize amine-terminated polymers, while additionally proving the required experimental techniques are appropriate in an undergraduate setting. Students working on this project will gain experience in synthetic polymer and organic chemistry, while also being trained to characterize their polymeric products using gel permeation chromatography, ultraviolet-visible (UV-Vis) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy. Notably, Bucknell has recently acquired a six hundred megahertz Varian NMR spectrometer, which will prove to be a powerful tool in characterization of the polymers.

开发合成方法，使聚合物在明确定义的位置具有特定的功能，是设计新的聚合物材料的关键。 该项目的重点是一种合成途径，该途径在聚合开始时将胺端基置于乙烯基聚合物上，这意味着胺基团被锚定在不断增长的聚合物链上。 本研究的最终目标是合成在每个聚合物链末端具有仲胺基团的化学多样性聚合物。 聚合胺端基通过公认的反应进一步转化的能力，加上它们在固态催化中的潜在用途，使得胺封端的聚合物有价值。 由本科生完成的研究已经确立了拟议工作的可行性，作为合成胺封端聚合物的一种手段，同时还证明了所需的实验技术在本科环境中是适当的。 从事该项目的学生将获得合成聚合物和有机化学方面的经验，同时还将接受培训，使用凝胶渗透色谱法，紫外可见（UV-Vis）光谱法和核磁共振（NMR）光谱法来表征其聚合物产品。 值得注意的是，巴克内尔最近获得了一台600兆赫的瓦里安NMR光谱仪，这将被证明是表征聚合物的强大工具。