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Abstract
A facile chemical synthesis of poly(methyl methacrylate) (PMMA) grafted CdTe nanocrystals (CdTe NCs) has been realized. Initially, CdTe NCs were prepared in a controlled manner using 2-mercaptoehanol (ME) as a capping agent. Then, 3-(trimethoxysilyl) propyl methacrylate having C˭C double bonds were anchored with ME capped CdTe NCs through condensation reaction. Subsequently, AIBN initiated in situ free radical polymerization provided PMMA-g-CdTe nanohybrids. The FT-IR investigation suggested the formation of robust covalent bonding between CdTe NCs and the organic PMMA segment. XPS analysis also confirmed PMMA-g-CdTe nanohybrids. The physical structure and morphology of the as-prepared nanohybrids were studied by XRD and TEM. The thermal stability of the hybrids was enhanced in comparison with pure PMMA as indicated by TGA analysis. The UV-Vis absorption and photoluminescence measurements of the PMMA-g-CdTe nanohybrids showed their potential optical properties.
Acknowledgment
This work was supported by the BK21 Plus program.