Synthesis and Characterization of Ferroelectric Liquid Crystals
铁电液晶的合成与表征
基本信息
- 批准号:9020658
- 负责人:
- 金额:$ 37.9万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1991
- 资助国家:美国
- 起止时间:1991-03-01 至 1994-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
With support from both the Organic Dynamics Program, Division of Chemistry and the Solid State Chemistry and Polymers Program, Division of Materials Research, Dr. Walba will study the design, synthesis, and characterization of ferroelectric liquid crystals (FLC), a new class of thermodynamically stable, ordered organic materials. The targets of the synthetic effort are designed to possess useful properties for photonic devices, e.g., fast-switching, high resolution and high contrast FLC light valves and ultrafast nonlinear optical devices. Specific projects include the following: (i) synthesis of chiral fluorinated alkylbenzoates and atropisomeric FLCs and evaluation of their FLC properties; (ii) synthesis and evalua- tion of the nonlinear optical properties of new FLC films; (iii) empirical force field modelling of FLC components (i.e., computerization of the binding site model); (iv) polarization- sensitive IR spectroscopic studies of the FLC self assembly in thin films. While the powerful techniques of regio- and sterocontrolled organic synthesis and conformational analysis give considerable control over the constitution and spatial relationships between atoms in organic molecules, the directed design of new materials (i.e., molecular aggregates) with specific geometric relationships between functional arrays of atoms is an exciting frontier in chemistry. An important goal of this project takes advantage of the self-assembly that occurs in ferroelectric liquid crystals (FLCs) to create in a controlled and general manner organic materials that possess thermodynamically stable polar order. With this objective in mind, a simple stereochemical model for the molecular level origins of the polar order that occurs in FLCs is developed and tested via a program of research that focusses upon the design, synthesis, and characterization of new FLC materials.
在有机动力学项目(化学部)和固体化学与聚合物项目(材料研究部)的支持下,Walba博士将研究铁电液晶(FLC)的设计、合成和表征,这是一种新型的热力学稳定的有序有机材料。综合努力的目标被设计为具有光子器件的有用特性,例如快速开关,高分辨率和高对比度FLC光阀和超快非线性光学器件。具体项目包括以下内容:(i)手性氟化烷基苯甲酸酯和atroisomer FLC的合成及其FLC性质的评价;(二)新型FLC薄膜非线性光学性质的合成与评价;(iii) FLC组件的经验力场建模(即结合位点模型的计算机化);(4)薄膜中FLC自组装的极化敏感红外光谱研究。虽然区域和立体控制有机合成和构象分析的强大技术对有机分子中原子之间的结构和空间关系有相当大的控制,但新材料的定向设计(即,原子功能阵列之间具有特定几何关系的分子聚集体是化学领域一个令人兴奋的前沿领域。该项目的一个重要目标是利用铁电液晶(FLCs)中的自组装,以一种受控和通用的方式创建具有热力学稳定极性顺序的有机材料。考虑到这一目标,我们开发了一个简单的FLC极性序列分子水平起源的立体化学模型,并通过一个研究项目对FLC材料的设计、合成和表征进行了测试。
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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David Walba其他文献
David Walba的其他文献
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{{ truncateString('David Walba', 18)}}的其他基金
New Phases and Phenomena in Orthogonal Bent-Core Liquid Crystals and Their Relationship to Molecular Structure
正交弯核液晶中的新相和现象及其与分子结构的关系
- 批准号:
1306209 - 财政年份:2013
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
Self-Assembled Monolayers for Liquid Crystal Alignment
用于液晶排列的自组装单层膜
- 批准号:
0079122 - 财政年份:2000
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
SGER: Optical Parametric Processes in Ferroelectric Liquid Crystal Filled Capillary Tube Waveguides
SGER:铁电液晶填充毛细管波导中的光学参数化过程
- 批准号:
9214865 - 财政年份:1992
- 资助金额:
$ 37.9万 - 项目类别:
Standard Grant
Synthesis and Characterization of Ferroelectric Liquid Crystals (Materials Chemistry)
铁电液晶的合成与表征(材料化学)
- 批准号:
8611192 - 财政年份:1986
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
Synthesis and Characterization of Ferroelectric Liquid Crystals (Materials Research)
铁电液晶的合成与表征(材料研究)
- 批准号:
8219259 - 财政年份:1983
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
The Thyme Polyethers: Host-Guest Chemistry and Stereochemical Topology (Chemistry)
百里香聚醚:主客体化学和立体化学拓扑(化学)
- 批准号:
8308087 - 财政年份:1983
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
The Scope and Mechanism of the Stereospecific Oxidative Cyclizations Promoted By High Valent Oxo Transition Metal Species
高价含氧过渡金属促进的立体定向氧化环化的范围和机制
- 批准号:
8011391 - 财政年份:1980
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
相似海外基金
Fabrication and Characterization of the Transparent Pyroelectric Infrared Sensor Using Organic Ferroelectric Thin Film
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STTR 第一阶段:铁电纳米粒子掺杂液晶/聚合物复合材料的设计、制造和表征
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21360150 - 财政年份:2009
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Preparation and characterization of Ferroelectric thin films
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- 批准号:
353958-2007 - 财政年份:2007
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铁电超薄膜和纳米结构的电学表征
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Research Tools and Instruments - Category 1 (<$150,000)
CAREER: The Synthesis and Characterization of New Ferroelectric - Second-Harmonic Generating Oxide Materials
职业:新型铁电-二次谐波氧化物材料的合成和表征
- 批准号:
0092054 - 财政年份:2001
- 资助金额:
$ 37.9万 - 项目类别:
Continuing Grant
Preparation, characterization and modelling of ferroelectric ceramic films for printing applications
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Research Grants
Preparation and dielectric characterization of thin ferroelectric multilayers with a high dielectric constant
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Research Grants
US-India Cooperative Research: Processing, Properties, and Characterization of Ferroelectric Films, Award in U.S. and Indian Currencies
美印合作研究:铁电薄膜的加工、性能和表征,以美国和印度货币获奖
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- 批准号:
9712182 - 财政年份:1997
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