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Suspension polymerization stabilized by triblock copolymer with CdS nanoparticles |
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| Authors: | Kaiqiang Chen Qina Sa Hanying Zhao |
| Affiliation: | a Department of Chemistry, Nankai University, Key Laboratory of Functional Polymer Materials, Ministry of Education, Nankai University, Tianjin 300071, PR China b Institute of Polymer Chemistry, Nankai University, Key Laboratory of Functional Polymer Materials, Ministry of Education, Nankai University, Tianjin 300071, PR China |
| Abstract: | In this paper, a new method to prepare polymer colloid particles stabilized by triblock copolymer with CdS nanoparticles was described. Poly(ethylene glycol-block-styrene-block-2-(dimethylamino) ethyl methacrylate) (PEG-b-PS-b-PDMAEMA) triblock copolymer was synthesized by sequential ATRP method. Micelles with CdS nanoparticles in the corona were prepared by “in situ” reaction of hydrogen sulfide with cadmium ion clusters in the corona of the micelles. The size of the CdS nanoparticles is affected by molar ratio of DMAEMA to cadmium ions and polymer concentration in the solution. When introduced into o/w emulsion the micelles reassemble on the surface of styrene oil droplets. PS colloid particles stabilized by triblock copolymer with CdS nanoparticles were achieved by suspension polymerization. TEM image indicates that CdS nanoparticles locate at the surface of the PS colloid particles. |
| Keywords: | Suspension polymerization CdS nanoparticles Micelle |
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