Functionalized organic nanoparticles from core-crosslinked poly(4-vinylbenzocyclobutene-b-butadiene) diblock copolymer micelles
- ORNL
- University of Athens, Athens, Greece
- University of Tennessee, Knoxville (UTK)
Sufface-functionalized polymeric nanoparticles were prepared by: a) self~assembly of poly(4-vinylbenzocyclobutene-b-butadiene) diblock copolymer (PVBCB-b-PB) to form spherical micelles (diameter:15-48 nm) in decane, a selective solvent for PB, b) crosslinking of the PVBCB core through thermal dimerization at 200-240 ~ C, and c) cleavage of the PB corona via ozonolysis and addition of dimethyl sulfide to afford aldehyde-functionalized nanoparticles (diameter: -16-20 nm), along with agglomerated nanoparticles ranging from - 30 to -100 nm in diameter. The characterization of the diblock copolymer precursors. the intermediate micelles and the final surface-functionalized crosslinked nanoparticles was carried alit by a combination of size exclusion chromatography, static and dynamic light scattering, viscometry, thermogravimetric analysis, 1 H NMR and FfIR spectroscopy and transmission electron microscopy.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1041094
- Journal Information:
- Polymer, Vol. 50, Issue 26; ISSN 0032-3861
- Country of Publication:
- United States
- Language:
- English
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