CAREER: Orientational Dynamics in Flows of Thermotropic Polymers
职业:热致聚合物流动中的取向动力学
基本信息
- 批准号:0093880
- 负责人:
- 金额:$ 37.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-02-01 至 2005-11-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
AbstractCTS-0093880P. Mather, University of ConnecticutThis proposal presents new experimental approaches, combined with carefully prepared model polymers, whose aim is to definitively answer outstanding questions of orientational stability for flows of thermotropic polymers. A third-generation controlled environment microheometer will be designed and assembled to allow direct measurements of both first normal stress differences and various measures of local and global orientation (birefringence, UV dichroism, IR dichroism, and wide-angle x-ray scattering) for the series of model materials is proposed. By examining the influence of TLCP chain flexibility on the linear Leslie-Ericksen tumbling parameter, and the evolution of microscopic (orientational defects) and macroscopic (birefringence) orientations in shear transients, we will significantly improve the understanding of TLCP dynamics, enabling both quantitative comparison with present polydomain models and further molecular modeling developments.An education plan is proposed to combine outreach to local teachers in Connecticut with the development of a new undergraduate chemical engineering elective, "Our World of Complex Fluids." In particular, the planned outreach efforts will feature the development of a pilot summer internship program for high school teachers. Polymer Links, in which high school teachers are teamed with chemical engineering faculty to conduct hands-on science projects (4-6 weeks) designed specifically to develop laboratory experiments in polymers and other complex fluids for use in the high school classroom. The complementary undergraduate course will first introduce students to a wide range of industrially relevant complex fluids, including foodstuffs, pharmaceuticals, and plastics along with biological fluids, including synovial fluid and cartilage. Then, this elective will expose students to underlying physical properties, microstructures, and quantitative descriptions of substances ranging from polymeric fluids to colloidal suspensions and from surfactant solutions to glasses.
摘要CTS-0093880 P。Mather,康涅狄格大学该提案提出了新的实验方法,结合精心制备的模型聚合物,其目的是明确回答热致聚合物流动的取向稳定性的突出问题。第三代受控环境微流变仪将被设计和组装,以允许直接测量的第一法向应力差和各种措施的本地和全球的方向(双折射,紫外二向色性,红外二向色性,和广角X-射线散射)的一系列模型材料的建议。通过考察TLCP链柔性对线性Leslie-Ericksen翻滚参数的影响,以及微观结构的演变,(取向缺陷)和宏观(双折射)方向的剪切瞬态,我们将显着提高TLCP动力学的理解,使定量比较与目前的多域模型和进一步的分子建模的发展。教育计划提出了联合收割机推广到当地教师,康涅狄格州与开发一个新的本科化学工程选修课,“我们的世界复杂的流体。“特别是,计划中的外联工作将包括为高中教师制定一个试点暑期实习计划。聚合物链接,其中高中教师与化学工程学院合作进行动手科学项目(4-6周),专门用于开发聚合物和其他复杂流体的实验室实验,供高中课堂使用。补充本科课程将首先向学生介绍广泛的工业相关的复杂流体,包括食品,药品和塑料沿着生物流体,包括滑液和软骨。然后,这门选修课将让学生了解基本的物理性质,微观结构和物质的定量描述,从聚合物流体到胶体悬浮液,从表面活性剂溶液到玻璃。
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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Patrick Mather其他文献
Patrick Mather的其他文献
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{{ truncateString('Patrick Mather', 18)}}的其他基金
DMREF/Collaborative Research: Laminated Elastomeric Composites with Anisotropic Shape Memory
DMREF/合作研究:具有各向异性形状记忆的层压弹性复合材料
- 批准号:
1334658 - 财政年份:2013
- 资助金额:
$ 37.5万 - 项目类别:
Standard Grant
GOALI: Shape Memory Polymer Composites
目标:形状记忆聚合物复合材料
- 批准号:
1004807 - 财政年份:2010
- 资助金额:
$ 37.5万 - 项目类别:
Continuing Grant
Materials World Network: Anomalous Thermoelasticity in Liquid Crystalline and Semicrystalline Polymer Networks
材料世界网络:液晶和半结晶聚合物网络中的反常热弹性
- 批准号:
0710524 - 财政年份:2007
- 资助金额:
$ 37.5万 - 项目类别:
Continuing Grant
Materials World Network: Anomalous Thermoelasticity in Liquid Crystalline and Semicrystalline Polymer Networks
材料世界网络:液晶和半结晶聚合物网络中的反常热弹性
- 批准号:
0758631 - 财政年份:2007
- 资助金额:
$ 37.5万 - 项目类别:
Continuing Grant
CAREER: Orientational Dynamics in Flows of Thermotropic Polymers
职业:热致聚合物流动中的取向动力学
- 批准号:
0552414 - 财政年份:2005
- 资助金额:
$ 37.5万 - 项目类别:
Continuing Grant
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CAREER: Orientational Dynamics in Flows of Thermotropic Polymers
职业:热致聚合物流动中的取向动力学
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0552414 - 财政年份:2005
- 资助金额:
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Continuing Grant
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