Dynamics in Polymeric Thin Films
聚合物薄膜动力学
基本信息
- 批准号:0412320
- 负责人:
- 金额:$ 31.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-06-01 至 2007-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The object of the proposed research is to characterize and understand the behavior, especially thedynamics (molecular motion), of thin-film polymers on solid surfaces. Characterization of theproperties of the polymers is crucial to an understanding of how various devices work. Ultimately,the properties of devices containing polymers can be improved if the behavior and their roles areunderstood. These determinations become even more crucial as the size of the devices, and hence thethickness of the polymer films, becomes smaller. The properties of the very-thin polymer films willbe studied with a variety of techniques including, mainly, nuclear magnetic resonance spectroscopy(NMR), and also modulated differential scanning calorimetry (MDSC), Fourier-transform infra-redspectroscopy (FTIR), and other techniques. The chemical/spectroscopic results will be correlated,when possible, to physical property studies, such as the measurement of adhesion strength in thinfilms. The intellectual merit of the proposed research is based on the understanding of the very complexphenomena in polymer thin films. Their dynamics are difficult to quantify with many of thetechniques that are applied to chemical systems because of the thinness and opacity of the surfacesystems. The use of these complementary techniques will give unprecedented detail to thecharacterization of the dynamics of adsorbed polymers, especially through the use of twodimensionalexchange deuterium NMR of adsorbed polymers. The segmental dynamics of thepolymer chains will be interpreted in terms of distributions of correlation times and the results of thedistributions will be used to determine the state of the polymer films. The broader impact of this research lies in the impact of the research itself on the technology,education and training of students, and the transfer of this knowledge to the scientific communityand the public. The work to be performed will aid device makers in designing better systems foradvanced applications that include thin polymer films. These applications are in electronic materials,sensors, particle stabilization, and composites fields, to name just a few. Knowledge of how materialproperties, such as adhesion, vary as a function of thickness allows the prediction and, indeed,avoidance of failure of these devices. The students educated through this research will be exposed toa wide variety of experiences, often from synthesis through the measurement of mechanicalproperties. They will develop an invaluable interdisciplinary background that will assist in makingthem more effective employees in complex technological fields. The scientific community andpublic at-large will also benefit through the activities of the PI in professional societies focused onimproving and disseminating knowledge. This includes strong components of public outreach. Inaddition, the PI's scientific activities will enhance his own outreach to the community throughinvolvement in and service to the important field of education.
该研究的目的是表征和理解固体表面上薄膜聚合物的行为,特别是动力学(分子运动)。聚合物特性的表征对于理解各种器件如何工作至关重要。最终,如果了解聚合物的行为和作用,含有聚合物的器件的性能可以得到改善。这些决定变得更加关键的尺寸的设备,因此thepthickness的聚合物薄膜,变得更小。非常薄的聚合物薄膜的性质将被研究与各种技术,主要包括,核磁共振光谱(NMR),也调制差示扫描量热法(MDSC),傅里叶变换红外光谱(FTIR),和其他技术。如有可能,化学/光谱结果将与物理性质研究相关联,例如薄膜粘附强度的测量。 所提出的研究的智力价值是基于对聚合物薄膜中非常复杂的现象的理解。由于表面系统的薄度和不透明性,它们的动力学很难用许多应用于化学系统的技术来量化。这些互补技术的使用将给吸附聚合物的动力学的characterization前所未有的细节,特别是通过使用吸附聚合物的two-dimensional交换氘NMR。聚合物链的链段动力学将被解释为相关时间的分布,并将使用分布的结果来确定聚合物膜的状态。 这项研究的更广泛的影响在于研究本身对技术、教育和学生培训的影响,以及向科学界和公众转让这种知识。这项工作将有助于设备制造商设计更好的系统,用于包括聚合物薄膜在内的先进应用。这些应用在电子材料,传感器,颗粒稳定和复合材料领域,仅举几例。了解材料特性(如粘附力)如何随厚度变化,可以预测并避免这些设备的故障。通过这项研究教育的学生将接触到各种各样的经验,通常从合成到机械性能的测量。他们将发展一个宝贵的跨学科背景,这将有助于使他们在复杂的技术领域更有效的员工。科学界和广大公众也将受益于PI在专业协会中的活动,这些活动侧重于提高和传播知识。这包括强有力的公共外联工作。此外,PI的科学活动将通过参与和服务于重要的教育领域来加强他自己与社区的联系。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Frank Blum其他文献
Frank Blum的其他文献
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{{ truncateString('Frank Blum', 18)}}的其他基金
Dynamics in Interfacial Polymer Systems
界面聚合物系统动力学
- 批准号:
1044200 - 财政年份:2010
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Copolymers and Plasticized Polymers at Interfaces
界面处的共聚物和增塑聚合物
- 批准号:
1005606 - 财政年份:2010
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Dynamics in Interfacial Polymer Systems
界面聚合物系统动力学
- 批准号:
0706197 - 财政年份:2007
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Acquisition of Nuclear Magnetic Resonance Spectrometer for Materials Research and Education
购置核磁共振波谱仪用于材料研究和教育
- 批准号:
0315636 - 财政年份:2003
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Segmental Dynamics in Ultra-thin Polymer layers
超薄聚合物层的分段动力学
- 批准号:
0107670 - 财政年份:2001
- 资助金额:
$ 31.5万 - 项目类别:
Continuing Grant
Segmental Dynamics of Surface Bound Polymers
表面结合聚合物的链段动力学
- 批准号:
9807696 - 财政年份:1998
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Dynamics of Surface-Bound Polymers
表面结合聚合物的动力学
- 批准号:
9500926 - 财政年份:1995
- 资助金额:
$ 31.5万 - 项目类别:
Continuing Grant
SGER: Dynamics of Homopolymers at Solid Interfaces
SGER:固体界面均聚物的动力学
- 批准号:
9417151 - 财政年份:1994
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
Computer Upgrade of 90MHz NMRs for Hands-on Student Use
90MHz NMR 的计算机升级供学生实践使用
- 批准号:
9252284 - 财政年份:1992
- 资助金额:
$ 31.5万 - 项目类别:
Standard Grant
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