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

Patent ·
OSTI ID:1034109
 [1];  [2]
  1. Hattiesburg, MS
  2. Pittsburgh, PA
+ Show Author Affiliations
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.
Research Organization:
University of Southern Mississippi (Hattiesburg, MS)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-01BC15317;
Assignee:
University of Southern Mississippi (Hattiesburg, MS)
Patent Number(s):
8,084,558
Application Number:
12/176,670
OSTI ID:
1034109
Country of Publication:
United States
Language:
English

References (15)

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Polymer-Stabilized Gold Nanoparticles and Their Incorporation into Polymer Matrices journal October 2001
Facile Preparation of Transition Metal Nanoparticles Stabilized by Well-Defined (Co)polymers Synthesized via Aqueous Reversible Addition-Fragmentation Chain Transfer Polymerization † journal October 2002
Electronic and Optical Properties of Chemically Modified Metal Nanoparticles and Molecularly Bridged Nanoparticle Arrays journal September 2000
Alkanethiolate Gold Cluster Molecules with Core Diameters from 1.5 to 5.2 nm:  Core and Monolayer Properties as a Function of Core Size journal January 1998
Novel One-Phase Synthesis of Thiol-Functionalized Gold, Palladium, and Iridium Nanoparticles Using Superhydride journal May 1999
Water-Soluble Polymers. 81. Direct Synthesis of Hydrophilic Styrenic-Based Homopolymers and Block Copolymers in Aqueous Solution via RAFT journal March 2001
Mechanism and Kinetics of RAFT-Mediated Graft Polymerization of Styrene on a Solid Surface. 1. Experimental Evidence of Surface Radical Migration journal December 2001
Synthesis of Polymer Brushes on Silicate Substrates via Reversible Addition Fragmentation Chain Transfer Technique journal January 2002
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Novel Amphiphilic Block Copolymers by Polymer Reactions and Their Use for Solubilization of Metal Salts and Metal Colloids journal January 1996
Living Free-Radical Polymerization by Reversible Addition−Fragmentation Chain Transfer:  The RAFT Process journal August 1998

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