✦ LIBER ✦
Investigation of metal clusters dispersed in styrene-co-(ethyl methacrylate) copolymers by means of high resolution transmission electron microscopy
✍ Scribed by Galo Cárdenas T.; Elizabeth Salgado C.; Viviana Vera L.; Miguel J. Yacamán
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 631 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
Styrene/ethyl methacrylate (SEMA) colloids were obtained by cocondensation at 77 K of the monomers with several metals such as Au, Pd, In and Sn. The colloids were polymerized with 2,2′‐azoisobutyronitrile and dibenzoyl peroxide as radical initiators at 60°C for 3.5 h. A viscosity average molecular weight (10^4^ < M~v~ < 10^5^) was obtained depending upon the metal used. The particle size of these clusters dispersed in the copolymers ranges from 20 to 31 Å. The metal clusters are incorporated in the copolymers.