Patent ID: 7344583
Filing Date: 2008-03-18
Classification: B82Y,C08G,Y10S,Y10T

Abstract:
1. A method of making metal particles, the method comprising: a) providing a dendrimer comprising b) forming a crosslinked dendrimer by reacting the first crosslinkable groups and the second crosslinkable groups; c) cleaving by a chemical reaction both the first attachment group and the second attachment group; d) removing the core organic material or a derivative thereof from the crosslinked dendrimer to form a cored dendrimer having interior end groups; e) forming a coordinative bond or an ionic bond between a metal-containing precursor and at least one of the interior end groups within a central region of the cored dendrimer, wherein the interior end groups are the only groups of the cored dendrimer that can form coordinative or ionic bonds with the metal-containing precursor; and f) reducing the metal-containing precursor to form a composite particle comprising a metal particle within the central region of the cored dendrimer, wherein the metal particle has an outer surface that is not bonded to the cored dendrimer.