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Controllable fabrication of nanocrystal-polymer hybrids via the catalytic chain transfer polymerization process.
- Source :
-
Colloid & Polymer Science . Jul2009, Vol. 287 Issue 7, p829-837. 9p. - Publication Year :
- 2009
-
Abstract
- Abstract  A facile catalytic chain transfer polymerization (CCTP) technique has been developed to synthesize covalently linked CdS nanocrystal-polymer hybrids with good optical properties. The in situ polymerization of methyl methacrylate (MMA) on the surface of modified CdS nanocrystals (NCs) with diameter of 5 nm via CCTP process yielded CdS-polymethylmethacrylate (PMMA) hybrid nanocomposites; while the incorporation of hydroxyl-coated CdS NCs into poly(methacryloxypropyltrimethoxysilane) (PMPS)-co-PMMA matrices prepared by CCTP afforded CdS-PMPS-co-PMMA hybrid nanocomposites, which were further cross-linked by free radical polymerization to form CdS NC-polymer network. The spectroscopic studies indicate that as-prepared CdS NC-polymer hybrids show good photoluminescence (PL) and the NC-polymer network exhibits highly enhanced PL property with respect to that before cross-linking. Also described are the probable mechanism for the catalytic chain transfer polymerization on the surface of modified nanocrystal and the measurement of chain transfer constants. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMERIZATION
*POLYMERS
*METHYL methacrylate
*POLYMETHYLMETHACRYLATE
Subjects
Details
- Language :
- English
- ISSN :
- 0303402X
- Volume :
- 287
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Colloid & Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 41435273
- Full Text :
- https://doi.org/10.1007/s00396-009-2037-9