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C60 end-functionalized four-armed polymers: synthesis and optical limiting properties
- Source :
- Journal of Materials Science. 42:6515-6523
- Publication Year :
- 2007
- Publisher :
- Springer Science and Business Media LLC, 2007.
-
Abstract
- A series of bromo-terminated four-armed homopolymers [polystyrene (PSt) and poly(methyl methacrylate) (PMMA)], prepared by atom transfer radical polymerization (ATRP), were subsequently functionalized with fullerene C60 by atom transfer radical addition (ATRA) reaction using CuBr/2,2′-bipyridine (bipy) as the catalyst system. The C60 end-capped four-armed polymer derivatives were then characterized by gel permeation chromatography (GPC), UV–vis, FT-IR, thermal gravimetric analyses (TGA) and differential scanning calorimeter (DSC). Another technique of synthesizing C60-functionalized four-armed polymers from azide functional polymers was also applied for comparison. The optical limiting behavior of C60 end-capped four-armed polymers prepared via ATRA reaction were measured in THF solution at 532 nm. Both groups of fullerene-functionalized polymers (C60-PSts and C60-PMMAs) are provided with optical limiting properties.
- Subjects :
- chemistry.chemical_classification
Materials science
Atom-transfer radical-polymerization
Mechanical Engineering
Polymer
Gel permeation chromatography
chemistry.chemical_compound
End-group
Differential scanning calorimetry
chemistry
Mechanics of Materials
Polymer chemistry
General Materials Science
Azide
Methyl methacrylate
Functional polymers
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........5644e0e33b3cc8ce62004c63f318e46d