skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Supramolecular Assembled C60-Containing Carboxylated Poly(dimethylsiloxane) Composites


No abstract prepared.

; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0032-3861; POLMAG; TRN: US200809%%183
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Polymer; Journal Volume: 47; Journal Issue: 17
Country of Publication:
United States

Citation Formats

Ouyang,J., Pan, Y., Zhou, S., and Goh, S. Supramolecular Assembled C60-Containing Carboxylated Poly(dimethylsiloxane) Composites. United States: N. p., 2006. Web. doi:10.1016/j.polymer.2006.06.026.
Ouyang,J., Pan, Y., Zhou, S., & Goh, S. Supramolecular Assembled C60-Containing Carboxylated Poly(dimethylsiloxane) Composites. United States. doi:10.1016/j.polymer.2006.06.026.
Ouyang,J., Pan, Y., Zhou, S., and Goh, S. Sun . "Supramolecular Assembled C60-Containing Carboxylated Poly(dimethylsiloxane) Composites". United States. doi:10.1016/j.polymer.2006.06.026.
title = {Supramolecular Assembled C60-Containing Carboxylated Poly(dimethylsiloxane) Composites},
author = {Ouyang,J. and Pan, Y. and Zhou, S. and Goh, S.},
abstractNote = {No abstract prepared.},
doi = {10.1016/j.polymer.2006.06.026},
journal = {Polymer},
number = 17,
volume = 47,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
  • No abstract prepared.
  • We demonstrate the possibility of forming long-range ordered self-assembled arrays of 5-nm-diameter nanodots with pitch of 10 × 7.5 nm{sup 2} using guide line templates and low molecular weight (MW) (4700–1200 g/mol) poly(styrene)-poly(dimethylsiloxane) (PS-PDMS) for application in ultrahigh density patterned magnetic recording media. We propose a three-dimensional control which involves control of the height of the guide lines, the thickness of the PS-PDMS films, and the gap between the guide lines in order to produce 5-nm-diameter, sub-10 nm pitched nanodots with long-range order along the guide lines. Adopting a 13-nm-thick PS-PDMS film and 14-nm-high resist guide lines, the 5-nm-diameter and 10 × 7.5 nm{sup 2}-pitched self-assembledmore » nanodots were ordered in 4–7 dot arrays with long-range order. The experimental results demonstrate that the method is suitable for the production of patterned media with magnetic recording densities of 8.6 Tbit/in.{sup 2} using low MW PS-PDMS and slim guide lines.« less
  • Permeability and selectivity in gas transport through poly(4-methyl-1-pentene) (TPX) and poly(dimethylsiloxane) (PDMS) using variable temperature mixed gas experiments is reported. Selected gases include H2, CO, CH4, CO2, and dimethyl ether (DME). The DME data is the first to be reported through these membranes. In this paper, the chosen polymers reflect both rubbery and crystalline materials. Rubbery polymers tend to be weakly size sieving, which, in this work, has resulted in larger permeabilities, lower separation factors, and lower activation energies of permeation (Ep). Conversely, the crystalline TPX membranes showed much greater sensitivity to penetrant size; although the gas condensability also playedmore » a role in transport.« less
  • Three sets of a new class of low surface tension block copolymers were synthesized consisting of a poly(dimethylsiloxane) (PDMS) block and a poly(perfluorooctylethyl acrylate) (AF8) block. The polymers were prepared using a bromo-terminated PDMS macroinitiator, to which was attached an AF8 block grown using atom transfer radical polymerization (ATRP) in such a designed way that the molecular weight and composition of the two polymer blocks were regularly varied. The interplay of both the phase separated microstructure and the mesomorphic character of the fluorinated domains with their effect on surface structure was evaluated using a suite of analytical tools. Surfaces ofmore » spin-coated and thermally annealed films were assessed using a combination of X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) studies. Both atomic force microscopy (AFM) measurements and grazing incidence small angle X-ray scattering (GISAXS) studies were carried out to evaluate the microstructure of the thin films. Even in block copolymers in which the PDMS block was the majority component, a significant presence of the lower surface energy AF8 block was detected at the film surface. Moreover, the perfluorooctyl helices of the AF8 repeat units were highly oriented at the surface in an ordered, tilted smectic structure, which was compared with those of the bulk powder samples using wide-angle X-ray powder diffraction (WAXD) studies.« less