Title: Preparation of transition metal nanoparticles and surfaces modified with (co)polymers synthesized by RAFT

Abstract

A new, facile, general one-phase method of generating thiol-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the steps of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.

Inventors:

McCormick, III, Charles L. ^[1]; Lowe, Andrew B ^[2]; Sumerlin, Brent S ^[3]

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+ Show Inventor Affiliations

1. (Hattiesburg, MS)
2. Hattiesburg, MS
3. Pittsburgh, PA

Issue Date:

Tue Dec 27 00:00:00 EST 2011

Research Org.:

University of Southern Mississippi (Hattiesburg, MS)

Sponsoring Org.:

USDOE

OSTI Identifier:

1034109

Patent Number(s):

8084558

Application Number:

12/176,670

Assignee:

University of Southern Mississippi (Hattiesburg, MS)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G5/00 - Compounds of silver
C01G55/00 - Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
C01G7/00 - Compounds of gold

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

C08F2/38 - Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation}
C08F2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F4/00 - Polymerisation catalysts

C - CHEMISTRY C09 - DYES C09C - TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES

C09C3/10 - Treatment with macromolecular organic compounds {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/31 - Surface property or characteristic of web, sheet or block

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DOE Contract Number:  

FC26-01BC15317

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE