US 7,319,127 B2Granted

Nano-sized metals or metal salts stabilized by using chain-end functionalized polymers and their synthetic methods

AssigneesKorea Institute of Science and Technology, Youl Chin Chemical Co., Ltd.

InventorsJungahn Kim, Kwang Ung Kim, Seung Sang Hwang, Dong-Youn Shin, Jang Seop Kim, Soon-Geun Hwang, Keon Hyeong Kim

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Abstract

Disclosed are nano-sized metals and metal salts stabilized by using semi-telechelic and telechelic polymers prepared through living anionic polymerization, and their synthetic methods, and a nanostructure wherein the nano-sized particles are self-assembled by mixing block copolymers and film-casting. The present invention provides a new method for preparing nano-sized particles capable of easily accomplishing nanostructure by merely mixing, especially with block copolymers, and having excellent stability.

Claims6

Dependent claims

Nano-sized metal particles or their salts stabilized by using chain-end functionalized polymer matrices with molecular weight of 1,000˜100,000, selected from the group consisting of the following formulas 1˜5,

wherein, R1 and R2 are hydrogen and methyl group or t-butyl group;
X1 and Y1 are independently carboxyl group, hydroxyl group, sulfonic acid group, or phthalic anhydride group;
and n is an integer of 10 to 5,000,
wherein, R3 and R4 are hydrogen or methyl group;
X2 and X3 are hydroxyl group, carboxyl group, sulfonic acid group, thiol group, amine group, or phthalic anhydride group;
and m is an integer of 20 to 10,000, and Formula 5
wherein, X4 is hydroxyl group, amine group;
Y2 is hydroxyl group, carboxyl group, sulfonic acid group, or phthalic anhydride group;
A1 is a styrenic monomer;
B1 is methyl methacrylate, or diene monomer;
and, o and p are each an integer of 10 to 5,000.

8 more elements

Dependencies are inferred from the claim text.