GOALI: Mechanical Activation of Amorphous Shape Memory Polymers

GOALI:无定形形状记忆聚合物的机械激活

基本信息

  • 批准号:
    1130358
  • 负责人:
  • 金额:
    $ 29.8万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2011
  • 资助国家:
    美国
  • 起止时间:
    2011-09-01 至 2016-08-31
  • 项目状态:
    已结题

项目摘要

The research objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) project is to elucidate the mechanisms controlling the performance of shape memory polymers during mechanical activation. Amorphous shape memory polymers can be programmed to store a temporary shape by applying deformation and cooling below the glass transition temperature. The material recovers the permanent shape when reheated above the transition temperature. The polymer structure can be tailored to meet a broad range of mechanical and biological requirements. This makes them attractive for applications in the biomedical device industry; yet they have not gained wider acceptance because of their slow recovery times. In mechanical activation, mechanical work is applied in addition to temperature to accelerate shape recovery. The research will investigate the importance of two mechanisms, molecular orientation and structural relaxation, on the force requirements for mechanical activation. The effect of shape memory programming conditions and physical aging on mechanical behavior will be measured. Constitutive models will be developed to investigate the effect of material properties and temperature and loading conditions on mechanical activation.The research will enable the development of more precise programming and more efficient manufacturing strategies for mechanically activated devices. The developed models will help to characterize the safety and performance of these devices throughout their intended shelf life, which can lead to a wider acceptance in the biomedical device industry. Student researchers will gain industry experience through summer internships at a leading company for shape memory polymer medical devices. The research will be integrated into courses to include the mechanics of smart polymers.
本研究项目的目的是阐明形状记忆聚合物在机械活化过程中的性能控制机制。 无定形形状记忆聚合物可以通过施加变形和冷却到低于玻璃化转变温度来编程以存储临时形状。 当再加热到转变温度以上时,材料恢复永久形状。聚合物结构可以定制以满足广泛的机械和生物学要求。 这使得它们在生物医学设备行业的应用中具有吸引力;但由于它们的恢复时间慢,它们尚未获得更广泛的接受。 在机械活化中,除了温度之外还施加机械功以加速形状恢复。本研究将探讨两种机制的重要性,分子取向和结构松弛,对机械活化的力的要求。 将测量形状记忆编程条件和物理老化对机械性能的影响。本构模型将用于研究材料特性、温度和载荷条件对机械激活的影响,该研究将有助于为机械激活器件开发更精确的编程和更有效的制造策略。 所开发的模型将有助于表征这些器械在其预期有效期内的安全性和性能,这可能会导致生物医学器械行业更广泛的接受。学生研究人员将通过在形状记忆聚合物医疗器械的领先公司进行暑期实习获得行业经验。 这项研究将被整合到课程中,包括智能聚合物的力学。

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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Thao Nguyen其他文献

Content based side information creation for distributed video coding
用于分布式视频编码的基于内容的辅助信息创建
Particulate PAH Transport Associated with Adult Chronic Cough Occurrence Closely Connected with Meteorological Conditions: A Modelling Study
与气象条件密切相关的成人慢性咳嗽发生相关的颗粒物 PAH 传输:一项建模研究
  • DOI:
    10.3390/atmos12091163
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Inomata Yayoi;Takeda Masato;Thao Nguyen;Kajino Mizuo;Seto Takafumi;Nakamura Hiroyuki;Hayakawa Kazuichi
  • 通讯作者:
    Hayakawa Kazuichi
Respiration rate and volume measurements using wearable strain sensors
  • DOI:
    10.1038/s41746-019-0083-3
  • 发表时间:
    2019-02-13
  • 期刊:
  • 影响因子:
    15.2
  • 作者:
    Chu, Michael;Thao Nguyen;Khine, Michelle
  • 通讯作者:
    Khine, Michelle
Wigner-Hough/Radon Transform for GPS Post-Correlation Integration (Preprint)
GPS 后相关积分的 Wigner-Hough/Radon 变换(预印本)
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Chun Yang;Mikel M. Miller;Thao Nguyen;Erik Blasch
  • 通讯作者:
    Erik Blasch
The influence of institutional void and socio-cultural factors on the internationalization of emerging multinationals
  • DOI:
    10.1016/j.ribaf.2024.102605
  • 发表时间:
    2025-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Nouhaila Ettalibi;Murugesh Arunachalam;Thao Nguyen;Kashif ur Rehman
  • 通讯作者:
    Kashif ur Rehman

Thao Nguyen的其他文献

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{{ truncateString('Thao Nguyen', 18)}}的其他基金

Conference: Materials Genome Initiative (MGI) Biennial Principal Investigator Workshop; Washington, DC; July 30-31, 2024
会议:材料基因组计划(MGI)两年一次的首席研究员研讨会;
  • 批准号:
    2422384
  • 财政年份:
    2024
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
DMREF/Collaborative Research: Integrated Material Design and Processing--Application to Recycled Plastics
DMREF/合作研究:集成材料设计和加工——在再生塑料中的应用
  • 批准号:
    2119040
  • 财政年份:
    2021
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
Micromechanics and the Role of Cellular Forces, Collagen Production, and Mechanochemistry in Extracellular Matrix Growth and Remodeling
微观力学和细胞力、胶原蛋白生成和机械化学在细胞外基质生长和重塑中的作用
  • 批准号:
    2032922
  • 财政年份:
    2020
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
Investigating the Relationship Between the Structure and Mechanical Behavior of the Lamina Cribrosa
研究筛板结构与力学行为之间的关系
  • 批准号:
    1727104
  • 财政年份:
    2017
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
DMREF: Predictive Multiscale Modeling of the Mechanical Properties of Polymers 3D Printed Using Fused Filament Fabrication
DMREF:使用熔丝制造 3D 打印聚合物机械性能的预测多尺度建模
  • 批准号:
    1628974
  • 财政年份:
    2016
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
CAREER: Understanding the Micromechanisms of Growth and Remodeling of Collagenous Tissues
职业:了解胶原组织生长和重塑的微观机制
  • 批准号:
    1253453
  • 财政年份:
    2013
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant
EAPSI: Functionalization and Conjugation of Mussel Adhesive Inspired Polymer on PEDOT Nanotubes for D
EAPSI:PEDOT 纳米管上受贻贝粘合剂启发的聚合物的功能化和共轭,用于 D
  • 批准号:
    1107283
  • 财政年份:
    2011
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Fellowship Award
Investigating the Molecular Mechanisms of Thermally Active Amorphous Shape Memory Polymers
研究热活性非晶形状记忆聚合物的分子机制
  • 批准号:
    0758390
  • 财政年份:
    2008
  • 资助金额:
    $ 29.8万
  • 项目类别:
    Standard Grant

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深度学习自动检测心脏磁共振图像的晚期机械激活
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