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Title: Nanoparticles modified with multiple organic acids

Abstract

Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specificmore » useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.« less

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6];  [3];  [7]
  1. Lakewood, CO
  2. Golden, CO
  3. Arvada, CO
  4. Boulder, CO
  5. Superior, CO
  6. Brighton, CO
  7. Aurora, CO
Issue Date:
Research Org.:
TDA Research, Inc. (Wheat Ridge, CO)
Sponsoring Org.:
USDOE
OSTI Identifier:
913139
Patent Number(s):
7244498
Application Number:
11/120,650
Assignee:
TDA Research, Inc. (Wheat Ridge, CO)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
DOE Contract Number:  
FG03-00ER82928; FG03-01ER83309
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Cook, Ronald Lee, Luebben, Silvia DeVito, Myers, Andrew William, Smith, Bryan Matthew, Elliott, Brian John, Kreutzer, Cory, Wilson, Carolina, and Meiser, Manfred. Nanoparticles modified with multiple organic acids. United States: N. p., 2007. Web.
Cook, Ronald Lee, Luebben, Silvia DeVito, Myers, Andrew William, Smith, Bryan Matthew, Elliott, Brian John, Kreutzer, Cory, Wilson, Carolina, & Meiser, Manfred. Nanoparticles modified with multiple organic acids. United States.
Cook, Ronald Lee, Luebben, Silvia DeVito, Myers, Andrew William, Smith, Bryan Matthew, Elliott, Brian John, Kreutzer, Cory, Wilson, Carolina, and Meiser, Manfred. Tue . "Nanoparticles modified with multiple organic acids". United States. https://www.osti.gov/servlets/purl/913139.
@article{osti_913139,
title = {Nanoparticles modified with multiple organic acids},
author = {Cook, Ronald Lee and Luebben, Silvia DeVito and Myers, Andrew William and Smith, Bryan Matthew and Elliott, Brian John and Kreutzer, Cory and Wilson, Carolina and Meiser, Manfred},
abstractNote = {Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specific useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {7}
}

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