- 专利标题: Method of making dye-doped polystyre microparticles
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申请号: US14706585申请日: 2015-05-07
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公开(公告)号: US09957336B2公开(公告)日: 2018-05-01
- 发明人: Christopher J. Wohl, Jr. , Pacita I. Tiemsin , Paul M. Danehy , Jason E. Danley
- 申请人: The United States of America represented by the Administrator of the National Aeronautics and Space Administration
- 申请人地址: US DC Washington
- 专利权人: The United States of America as represented by the Administrator of NASA
- 当前专利权人: The United States of America as represented by the Administrator of NASA
- 当前专利权人地址: US DC Washington
- 代理商 Jennifer L. Riley; Robin W. Edwards; Mark P. Dvorscak
- 主分类号: C09D11/50
- IPC分类号: C09D11/50 ; C08F212/14 ; C08F12/30 ; C09K11/02 ; C09K11/06 ; C09D11/328 ; G01P5/20 ; G01M9/04
摘要:
Various embodiments provide dye-doped polystyrene microspheres generated using dispersion polymerization. Polystyrene microspheres may be doped with fluorescent dyes, such as xanthene derivatives including kiton red 620 (KR620), using dispersion polymerization. Certain functionalities, such as sodium styrene sulfonate, may be used to shift the equilibrium distribution of dye molecules to favor incorporation of the dye into the particles. Polyelectrolyte materials, such as poly(diallyldimethyl ammonium chloride), PolyDADMAC, may be used to electrostatically trap and bind dye molecules within the particles. A buffer may be used to stabilize the pH change of the solution during dye-doped polystyrene microsphere generation and the buffer may be selected depending on the pKa of the dye being incorporated. The various embodiments may provide dye-doped polystyrene microspheres, such as KR620-doped polystyrene microspheres that are non-toxic and non-carcinogenic. These non-toxic and non-carcinogenic dye-doped polystyrene microspheres may be suitable for use in wind tunnel testing.
公开/授权文献
- US20150322336A1 Dye Doped Polymer Microparticles 公开/授权日:2015-11-12