Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T16:35:37.526Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Confinement on Arborescent Graft Polystyrene Particle Shape

Published online by Cambridge University Press:  02 July 2020

T.M. Chou ,
A. Aitouchen ,
M. Libera ,
R.M. Briber  and
M. Gauthier
T.M. Chou
Affiliation:
Stevens Institute of Technology, Hoboken, NJ
A. Aitouchen
Affiliation:
Stevens Institute of Technology, Hoboken, NJ
M. Libera
Affiliation:
Stevens Institute of Technology, Hoboken, NJ
R.M. Briber
Affiliation:
University of Maryland, College Park, MD
M. Gauthier
Affiliation:
University of Waterloo, Waterloo, Ontario
Get access

Extract

Arborescent graft polymers are highly branched materials synthesized by grafting multiple generations of macromolecular precursors on a central core [1,2]. They can be synthesized with controllable size and molecular weight depending on the number of generations and the precursor molecular weight. They possess many of the unique structural [3], thermodynamic, and rheological [4] properties of dendrimers but do so on a length scale roughly one order of magnitude higher. This research describes the effect of confinement on the shape of arborescent graft polystyrene (PS).

This work used 3rd generation arborescent graft PS synthesized with 5kg/mole linear polystyrene precursor (G3- 5K). The G3-5K PS sample was mixed to a dilution of approximately 0.005 wt% in toluene. A single drop of solution was placed on either a holey-carbon film or an ultrathin continuous carbon film. The solvent was evaporated under ambient conditions. A Philips CM20 FEG TEM/STEM equipped with a Gatan 666 PEELS and a 679 multiscan CCD camera was used to study the structure of these specimens.

Type
Advances in Polymer Characterization
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 1114 - 1115
Copyright
Copyright © Microscopy Society of America

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Gauthier, M. and Moller, M., Macromolecules, 1991, 24, 4548CrossRefGoogle Scholar

[2] Sheiko, S.S., Gauthier, M., and Moller, M., Macromolecules, 1997, 30, 2343CrossRefGoogle Scholar

[3] Choi, S., Briber, R.M. et. al., Macromolecules, 1999, 32, 7879CrossRefGoogle Scholar

[4] Hempenius, M.A., Zoetelief, W.F. et. al., Macromolecules, 1998, 31, 2299CrossRefGoogle Scholar

[5] Wang, Y.C. et. al., Microsc. Microanal., 4, 1998, 146CrossRefGoogle Scholar

[6] Egerton, R., Electron energy-loss spectroscopy in the electron microscope, Plenum, New York, 1986Google Scholar