GOALI: Directed Self-Assembly of Linear and Star Block Copolymer Thin Films - Oriented Nanostructures with Reduced Feature Sizes via Raster Annealing

GOALI：线性和星形嵌段共聚物薄膜的定向自组装 - 通过光栅退火缩小特征尺寸的定向纳米结构

基本信息

批准号：
1610134
负责人：
Thomas Epps
金额：
$ 36.96万
依托单位：
University of Delaware
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-06-01 至 2021-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1610134&HistoricalAwards=false
关键词：
GOALI Directed Self Assembly Linear

项目摘要

NON-TECHNICAL SUMMARY:This research aims to address the challenge of manufacturing lower cost, more efficient, lighter weight, and smaller scale systems for applications ranging from information or data storage devices for digital media to portable biosensing arrays that could potentially screen and treat a myriad of diseases. The project integrates fundamental research with collaborative assistance from an industrial partner to generate nanoscale features (of order 1/1000th the width of a human hair) that have potential to be translated from the laboratory-scale to a widely available and useable platform. In undertaking this collaborative approach, the research team will use commercially-relevant polymers that are created to spontaneously form ultra-small features, whose shape and function can be dictated through processing conditions. By linking aspects of materials chemistry, materials properties, and processing, this project will aid in the cost-effective evaluation of polymer systems to generated efficient electronic devices. This project provides research opportunities to students (including underrepresented undergraduate and economically-disadvantaged high school students) in a vibrant and collaborative laboratory setting and exposes students of all levels to cutting-edge concepts for making new nanometer scale materials that could lead to lower cost and more energy-efficient fabrication of computer-related devices.TECHNICAL SUMMARY:The PI and his industrial partner at DuPont collaborate to develop new nanotemplates from self-assembling macromolecules using commercially-relevant block copolymers. A particular goal of this work is to investigate star architectures (and variable block chemistries) in block copolymers as a viable means for generating "writeable" and oriented nanostructures with reduced feature sizes for nanotemplating applications. By accomplishing this goal, the University of Delaware and DuPont team will address key needs in the arena of nanotemplating and bit-patterned media, including the ability to rapidly generate thin film templates with well-defined features at low cost, with appropriate and addressable orientations and domains, with minimal defects, and approaching smaller feature sizes ( 5 nm). To facilitate general understanding, the proposed activities combine 1) the examination of various block copolymer architectures and chemistries, 2) the development of a unique solvent vapor annealing approach (raster solvent vapor annealing with soft shear), and 3) the macromolecular design, synthesis, self-assembly, and characterization expertise of the University of Delaware and the nanoprocessing and materials expertise of DuPont. Specific research themes include: (1) investigating the differences between star and linear block copolymer directed self-assembly using both moderately-repulsive and highly-repulsive polymer-polymer interactions to reduce feature sizes, improve nanostructure ordering, and control nanostructure orientation; (2) utilizing a newly-developed directed and programmable solvent annealing process to directionally align nanostructures with minimal defects; (3) probing solvent partitioning between domains via neutron scattering techniques; (4) incorporating newly-proposed "flexible-blade" flow coating to simultaneously cast and align nanostructures.

非技术摘要：这项研究旨在应对制造较低成本，更高效，更轻的重量和较小规模的应用程序的挑战，用于应用程序，从数字媒体的信息或数据存储设备到可以潜在筛查和治疗无数疾病的便携式生物传感阵列。该项目将基本研究与工业合作伙伴的合作协助整合在一起，以生成纳米级功能（命令第1/1000个人的宽度），这些功能有可能从实验室规模转换为广泛可用且可用的平台。在采用这种协作方法时，研究团队将使用与商业上相关的聚合物，这些聚合物是自发地形成超级小型功能的，其形状和功能可以通过处理条件来决定其形状和功能。通过将材料化学，材料特性和加工的各个方面联系起来，该项目将有助于对聚合物系统的成本效益评估与产生有效的电子设备。该项目为学生提供了研究机会（包括富有代表性的本科生和经济偏爱的高中生），以充满活力和协作的实验室环境，使各个级别的学生接触到最先进的概念，以制造新的纳米尺度材料，以制造新的纳米尺度，从而可以降低成本和更智能的计算机相关设备，从而开发了与计算机相关的工具。使用与商业相关的块共聚物进行自组装大分子。这项工作的一个特殊目标是研究块共聚物中的恒星体系结构（以及可变的块化学成分），作为生成具有降低功能大小的纳米置换应用功能大小的可行手段。通过实现这一目标，特拉华大学和杜邦大学团队将满足纳米结束和有点图案的媒体领域的关键需求，包括能够以低成本，适当且可寻求的方向和域名迅速生成具有较低定义功能的薄膜模板，具有适当且可寻求的偏差和域，并具有最小的缺陷，以及接近较小的功能尺寸（5 nm）（5 nm）。 To facilitate general understanding, the proposed activities combine 1) the examination of various block copolymer architectures and chemistries, 2) the development of a unique solvent vapor annealing approach (raster solvent vapor annealing with soft shear), and 3) the macromolecular design, synthesis, self-assembly, and characterization expertise of the University of Delaware and the nanoprocessing and materials expertise of DuPont. 特定的研究主题包括：（1）使用中等抑制性和高度抑制性的聚合物 - 聚合物相互作用，研究恒星和线性块共聚物定向自组装之间的差异，以减少特征大小，改善纳米结构排序，并控制纳米结构方向；（2）利用新开发的定向和可编程的溶剂退火过程，以最小的缺陷对齐纳米结构；（3）通过中子散射技术探测域之间的溶剂分配；（4）将新提供的“柔性叶片”流涂层融合到同时铸造和对齐纳米结构。

项目成果

期刊论文数量（4）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Enhanced Conductivity via Homopolymer-Rich Pathways in Block Polymer-Blended Electrolytes

通过嵌段聚合物混合电解质中富含均聚物的途径增强电导率

DOI：
10.1021/acs.macromol.9b01879
发表时间：
2019
期刊：
Macromolecules
影响因子：
5.5
作者：
Morris, Melody A.;Sung, Seung Hyun;Ketkar, Priyanka M.;Dura, Joseph A.;Nieuwendaal, Ryan C.;Epps, Thomas H.
通讯作者：
Epps, Thomas H.

Directional Self‐Assembly of Fluorinated Star Block Polymer Thin Films Using Mixed Solvent Vapor Annealing

使用混合溶剂蒸气退火定向自组装氟化星块聚合物薄膜

DOI：
10.1002/polb.24901
发表时间：
2019
期刊：
Journal of Polymer Science Part B: Polymer Physics
影响因子：
0
作者：
Sung, Seung Hyun;Farnham, William B.;Burch, Heidi E.;Brun, Yefim;Qi, Kai;Epps, III, Thomas H.
通讯作者：
Epps, III, Thomas H.

Block Copolymer Vitrimers