Thiol-terminated polystyrene through the reversible addition-fragmentation chain transfer technique for the preparation of gold nanoparticles and their application in organic memory devices
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- Thiol-terminated polystyrene through the reversible addition-fragmentation chain transfer technique for the preparation of gold nanoparticles and their application in organic memory devices
- Bae, Sung-keun; Lee, Sang-Young; Hong, Sung Chul
- Gold nanoparticles; Organic memory; Polystyrene (PS); Reversible addition-fragmentation chain transfer (RAFT); Thiol
- Issue Date
- ELSEVIER SCIENCE BV
- REACTIVE & FUNCTIONAL POLYMERS, v.71, no.2, pp.187 - 194
- This work focuses on the preparation of gold nanoparticles decorated with well-defined polystyrene (PS) for PS-based thin nanocomposite films. Reversible addition-fragmentation chain transfer (RAFT) polymerization of styrene using dibenzyltrithiocarbonate (DBTTC) as a chain transfer agent (CTA) followed by a hydrolysis reaction produced a thiol end-capped PS. The polymer was successfully used as polymeric surface modifier in a two-phase gold nanoparticle (Au-NP) synthesis process, generating Au-NPs having average diameters ranging from 3 to 5 nm. The Au-NPs were incorporated into PS thin films to fabricate organic memory devices, exhibiting switching behaviors.
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