GOALI: Dynamic Behavior of Preferentially Adsorbed Block Copolymer Brushes

目标:优先吸附嵌段共聚物刷的动态行为

基本信息

  • 批准号:
    9816147
  • 负责人:
  • 金额:
    $ 10.94万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    1999
  • 资助国家:
    美国
  • 起止时间:
    1999-04-01 至 2002-03-31
  • 项目状态:
    已结题

项目摘要

ABSTRACTCTS-9816147Clemson Univ./S. KilbeyThe work outlined in this proposal will investigate the properties of layers of multiblock copolymers that are preferentially adsorbed in a surface through one block, leaving the other block(s) non-adsorbed. The primary objective is to understand how to manipulate the shear properties of these structure-forming layers in order to build polymer-modified surfaces with tailored frictional properties and wear characteristics. Manipulating the frictional properties of polymer-modified surfaces directly impact areas of technology ranging from lubrication and colloid stabilization to novel applications for surface active polymers, including display devices, microvalves, and sensors. The work described in this proposal forms a coherent plan to systematically investigate the impact of solvent quality, shear rate, and layer composition on the dynamic response of various polymer/solvent pairs. The synthesis and characterization of the necessary polymeric materials will be handled through a collaboration with Dr. Jimmy Mays of the University of Alabama at Birmingham. A modified Surface Forces Apparatus housed at Clemson University will be used to directly measure the forces required to slide two polymer coated surfaces laterally past each other. These measurements are done on molecular length scales and therefore, provide information on the molecular-level frictional interactions between the surfaces. The accumulated data on how the dynamic behavior of these interfacial layers are impacted by changes in molecular weight, chain architecture, and solution properties are central to developing the capability to do predictive design of surfaces modified with amphiphilic macromolecules. This work will also result in a more complete body of structure-property data of polymer brushes, which will be generally useful for the developing and engineering of surfaces modified by soft materials.
摘要CTS-9816147克莱姆森大学/ S. Kilbey本提案中概述的工作将研究多嵌段共聚物层的性质,这些共聚物优先通过一个嵌段吸附在表面上,而其他嵌段不吸附。 主要目的是了解如何操纵这些结构形成层的剪切性能,以建立具有定制的摩擦性能和磨损特性的聚合物改性表面。 操纵聚合物改性表面的摩擦性能直接影响技术领域,从润滑和胶体稳定到表面活性聚合物的新应用,包括显示设备,微型阀和传感器。 本提案中描述的工作形成了一个连贯的计划,系统地研究溶剂质量,剪切速率和层组成对各种聚合物/溶剂对的动态响应的影响。 必要的聚合物材料的合成和表征将通过与伯明翰亚拉巴马大学的Jimmy Mays博士的合作来处理。 安装在克莱姆森大学的改良表面力装置将用于直接测量两个聚合物涂层表面横向滑动通过彼此所需的力。 这些测量是在分子长度尺度上进行的,因此提供了表面之间分子水平摩擦相互作用的信息。 这些界面层的动态行为如何受到分子量,链结构和溶液性质变化的影响的积累数据是开发两亲性大分子改性表面的预测设计能力的核心。 这项工作也将导致一个更完整的机构的聚合物刷,这将是一般有用的软材料改性表面的开发和工程的结构-性能数据。

项目成果

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S Michael Kilbey其他文献

S Michael Kilbey的其他文献

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{{ truncateString('S Michael Kilbey', 18)}}的其他基金

CAS: Synthesis, Assembly and Photophysical Behaviors of Nonconventional Purine-Containing Conjugated Copolymers
CAS:非常规含嘌呤共轭共聚物的合成、组装和光物理行为
  • 批准号:
    2204396
  • 财政年份:
    2022
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
UNS: Organization and Interfacial Interactions of Surface-tethered Layers of Semiflexible Polymer Chains
UNS:半柔性聚合物链表面束缚层的组织和界面相互作用
  • 批准号:
    1512221
  • 财政年份:
    2015
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
Advancing Self-Assembly Processing through Architecturally- and Compositionally-Complex Block Copolymer Surfactant Mixtures
通过结构和成分复杂的嵌段共聚物表面活性剂混合物推进自组装加工
  • 批准号:
    1131252
  • 财政年份:
    2011
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
Understanding In-Situ Chemical Transformations of Polymer Brush-Modified Surfaces
了解聚合物刷改性表面的原位化学转化
  • 批准号:
    1133320
  • 财政年份:
    2011
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
Synthesis, Structure and Swelling of Polyelectrolyte Brushes
聚电解质刷的合成、结构及溶胀
  • 批准号:
    0840249
  • 财政年份:
    2008
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
Synthesis, Structure and Swelling of Polyelectrolyte Brushes
聚电解质刷的合成、结构及溶胀
  • 批准号:
    0730696
  • 财政年份:
    2007
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
NTE Phase I (Exploratory): Molecularly Imprinted Conducting Polymer Scaffolds for Sensing and Measurement
NTE 第一阶段(探索性):用于传感和测量的分子印迹导电聚合物支架
  • 批准号:
    0329316
  • 财政年份:
    2003
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant
Acquisition of a High-Speed, High-Sensitivity Ellipsometer for Materials Research and Education
采购用于材料研究和教育的高速、高灵敏度椭圆偏振仪
  • 批准号:
    0215881
  • 财政年份:
    2002
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Continuing Grant
Exploratory/GOALI: Synthesis and Structure-Property Investigations of Branched Block Copolymer Brushes
探索性/GOALI:支化嵌段共聚物刷的合成和结构性能研究
  • 批准号:
    0129613
  • 财政年份:
    2002
  • 资助金额:
    $ 10.94万
  • 项目类别:
    Standard Grant

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