Tailor-made hybrid nanostructure of poly(ethyl acrylate)/clay by surface-initiated atom transfer radical polymerization
Haimanti Datta
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Search for more papers by this authorAnil K. Bhowmick
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Search for more papers by this authorCorresponding Author
Nikhil K. Singha
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, IndiaSearch for more papers by this authorHaimanti Datta
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Search for more papers by this authorAnil K. Bhowmick
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Search for more papers by this authorCorresponding Author
Nikhil K. Singha
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, IndiaSearch for more papers by this authorAbstract
Hybrid nanoarchitecture of tailor-made Poly(ethyl acrylate)/clay was prepared by surface-initiated atom transfer radical polymerization (SI-ATRP), by tethering ATRP initiator on active hydroxyl group, present in surface as well as in the organic modifier of the clay used. Extensive exfoliation was facilitated by using these initiator modified clay platelets. Poly(ethyl acrylate) chains with controlled polymerization and narrow polydispersities were forced to be grown from within the clay gallery (intergallery) as well as from the outer surface (extragallery) of the clay platelets. The polymer chains attached onto clay surfaces might have the potential to provide the composites with enhanced compatibility in blends with common polymers. Attachment of the initiator on clay platelets was confirmed by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), elemental analysis, Wide-angle X-ray diffraction (WAXD), and microscopic analysis. Finally, end group analysis (by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry, and chain extension experiment) of the cleaved polymer and morphological study (by WAXD, Transmission Electron Microscopy), performed on the polymer grafted clays examined the effect of grafting on the efficiency of polymerization and the degree of dispersion of clay tactoids in polymer. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 5014–5027, 2008
Supporting Information
This article contains Supplementary Material available via the Internet at http://www.interscience.wiley.com/jpages/0887-624X/suppmat .
| Filename | Description |
|---|---|
| pola22829-FigureS1.tif1.1 MB | Figure S1.Variation of carbon content with grafting % |
| pola22829-FigureS2.tif1.1 MB | Figure S2.Semilogarithmic kinetic plots for the SI-ATRP of EA at 90°C in bulk and inp -xylene. |
| pola22829-FigureS3.tif1.5 MB | Figure S3.Kinetic plots of ln([M]o/[M]) versus reaction time for SI-ATRP of EA in bulk at different temperatures.[HA]/[MBrP]/[CuBr]/[PMDETA] : 100/1/1/1. |
| pola22829-FigureS4.tif1.2 MB | Figure S4.Plots of Mn SEC </sup? and PDI versus monomer conversion for SI-ATRP of EA (bound polymer).The straight line designate theoretical molecular weight. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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