Nanoconfinement and its Influence on Polymerization

纳米限制及其对聚合的影响

• 批准号: 1235346
• 负责人: Sindee Simon
• 金额: $ 37.6万
• 依托单位: Texas Tech University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1235346&HistoricalAwards=false
• 关键词: Nanoconfinement; its; Influence; Polymerization

The research objective of this grant is to elucidate the fundamental mechanism that is responsible for changes in step-growth and free-radical polymerizations under nanoconfinement. Nanoporous matrices will be used as model confinement geometries and work will be carried out in both cylindrical and spherical confinement regimes and with various surface chemistries. Calorimetric and Fourier transform infrared spectroscopy (FTIR) studies will be performed to determine reaction rates and limiting conversions and will be augmented by studies of nanoconfined liquid dynamics and structure using optical Keer effect (OKE) spectroscopy. The investigation will quantify the importance of confinement-induced changes in liquid structure and liquid dynamics on reactivity and thermodynamics in confined polymerizations.The results of the proposed study are important for controlling polymer synthesis at the nanoscale in nanocomposite, nanolithographic, and nanoelectronic applications. The proposed effort will also provide excellent state-of-the-art research training for the undergraduate and graduate students involved, and strong efforts will be made to include under-represented minorities. Outreach efforts will include involvement of high-school students in summer research, as well as participation in two successful outreach programs coordinated by the TTU Institute for the Development and Enrichment of Advanced Learners (IDEAL), "Super Saturdays," a science-enrichment program for fourth- to six-graders and "Science - It's a Girl Thing" (SIGT) aimed at promoting interest in science and engineering for junior high and high school girls.

这项资助的研究目标是阐明在纳米限制下逐步生长和自由基聚合变化的基本机制。 纳米多孔矩阵将被用来作为模型的限制几何形状和工作将在圆柱形和球形的限制制度和各种表面化学进行。 将进行量热和傅里叶变换红外光谱（FTIR）研究，以确定反应速率和限制转换，并将通过使用光学克尔效应（OKE）光谱研究纳米限制液体动力学和结构来增强。 该研究将量化限制引起的液体结构和液体动力学的变化对反应性和热力学的限制polymerization.The结果的重要性，提出的研究是重要的控制聚合物合成在纳米复合材料，nanolithographic和nanoelectronic应用。 拟议的努力还将为有关的本科生和研究生提供最先进的研究培训，并将大力纳入代表性不足的少数民族。 外联工作将包括高中生参与暑期研究，以及参加由TTU高级学习者发展和充实研究所（IDEAL）协调的两个成功的外联方案“超级星期六，为四到六年级学生提供的科学丰富课程和“科学--这是女孩的事”（SIGT）旨在提高初中和高中女生对科学和工程的兴趣。