Category ‘Polymers

Micelles

  • Wednesday Jan 21,2009 05:47 PM
  • By yalovenko
  • In Polymers
Micelles

Worm-like micelle assembly deposited on HOPG. Micelles are formed from 2nm Au nanoparticles functionalized with amphyphilic PS-PEO block copolymer molecules. 1 micron scan.
Fine bead-like structure of the micelle assembly is clearly resolved.
Sample courtesy of prof. E. Zubarev , Rice University.

Filofocon A

  • Wednesday Jan 21,2009 05:34 PM
  • By yalovenko
  • In Polymers
Filofocon A

Hydro-2 (Filofocon A) polymer, irradiated with an excimer laser.
Sample courtesy of Jan Siegel, PhD, Laser Processing Group, Instituto de Optica – CSIC, Madrid, SPAIN.
20 microns scan.

C36H74 lamellar stripes

  • Wednesday Jan 21,2009 05:22 PM
  • By yalovenko
  • In Polymers
C36H74 layer topography C36H74 layer phase

C36H74 lamellar stripes on HOPG. Topography and inverted phase image.
Lamellar stripes are clearly seen both in topography and phase images.
60 nm scans.

Polypropylene

  • Wednesday Jan 21,2009 04:36 PM
  • By yalovenko
  • In Polymers
Polypropylene

Spherulites of isotactic polypropylene.
Scan size 42 x 42 microns, closed loop active.
Sample courtesy of Dr. V. Prokhorov, Shemyakin & Ovchinikov Institute of Bioorganic Chemistry, RAS.

Celgard membrane

  • Wednesday Jan 21,2009 04:04 PM
  • By yalovenko
  • In Polymers
Celgard membrane topography Celgard membrane phase

Celgard 2400 polypropylene membrane.
Topography (left) and phase(right) images. Scan size 2 x 2 microns, closed loop active.
Sample courtesy of Celgard LLC.