Instabilities in Patterned Polymer Surfaces

图案化聚合物表面的不稳定性

基本信息

批准号：
1031785
负责人：
Yifu Ding
金额：
$ 30.97万
依托单位：
University of Colorado at Boulder
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2010
资助国家：
美国
起止时间：
2010-09-01 至 2014-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1031785&HistoricalAwards=false
关键词：
Instabilities Patterned Polymer Surfaces

项目摘要

The research objective of this award is to elucidate the nature of the instabilities in nano-patterned polymer surfaces. Compared with the elastic or viscous instabilities that have been actively studied in planar polymer films, the viscoelastic instabilities in patterned polymer surfaces remain largely unexplored, and are far more complex due to the multiple variables that can affect their characteristics. The proposed study, combining experimental and theoretical work, will result in a clear understanding on the scientific underpinning of the pattern instabilities, including their boundary conditions, scaling relationships for characteristic wavelength and onset time, the role of nano-fabrication parameters, and materials properties.If successful, the results of this research will benefit applications of patterned polymer surfaces, which are critical components to many technologies. Thorough understanding of the instabilities in patterned polymer surface will pave the way for high fidelity pattern fabrications and enable post-fabrication processes that utilize solvents and thermal annealing. These instabilities, once understood, will also offer a unique avenue to create novel hierarchical structures that are otherwise challenging to fabricate with parallel lithographic techniques. This award will provide educational benefits to K-12, undergraduate, and graduate students by directly involving them into the research. The grant will also facilitate curriculum for a materials degree program which offers opportunity for students in the front range of rocky mountain area. The results of the research will be incorporated as topics and modules into courses, as well as broadly disseminated through journal publications, national conferences and TeachEngineering digital library.

该奖项的研究目标是阐明纳米图案聚合物表面中不稳定性的性质。与在平面聚合物膜中积极研究的弹性或粘性不稳定性相比，图案化聚合物表面中的粘弹性不稳定性在很大程度上尚未探索，并且由于可能影响其特征的多个变量，因此更为复杂。拟议的研究结合了实验和理论工作，将对模式不稳定性的科学基础有清晰的了解，包括其边界条件，特征波长和发作时间的扩展关系，纳米结构参数的作用和材料的作用。对图案化聚合物表面的不稳定性的透彻理解将为高保真模式的制造铺平道路，并实现利用溶剂和热退火的后制作过程。曾经理解的这些不稳定性还将提供独特的途径，以创建新颖的层次结构，这些结构原本是用平行光刻技术制造的具有挑战性的。该奖项将通过将他们直接参与研究来为K-12，本科生和研究生提供教育利益。该赠款还将促进材料学位课程的课程，该课程为落基山地区前系列的学生提供机会。该研究的结果将作为主题和模块纳入课程中，并通过期刊出版物，国家会议和Teachengineering数字图书馆广泛传播。