Accession Number:

ADA516684

Title:

Thermal and FTIR Characterization of Poly (4-vinylpyridine) Crosslinked with Metal Salts

Descriptive Note:

Final rept. Oct 2008-Jul 2009

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE

Personal Author(s):

• Zander, Nicole E.
• Orlicki, Joshua A.
• Rawlett, Adam M.

Report Date:

2010-03-01

Pagination or Media Count:

18.0

Abstract:

We investigated the physical properties and degree of crosslinking of poly 4-vinylpyridine P4VP blended with transition metal salts using differential scanning calorimetry DSC and thermal gravimetric analysis TGA. The glass transition temperature Tg of the blends increased significantly upon addition of zinc Zn and copper II Cu salts. Tg enhancement was found to be highly dependent upon the type and loading of the metal salt. A maximum increase of 70 degrees C was observed at 0.25 molar equivalents of Zn cation. Ash content from TGA was highest for the 0.25 zinc salt loading, indicating that the maximum amount of metal ion was incorporated into the polymer at this concentration. Fourier transform infrared spectroscopy FTIR provided confirmation that transition metal coordination between the Zn cation and the pyridine nitrogens occured, and allowed for the quantification of pyridine binding.

Descriptors:

• *POLYMERS
• *TRANSITION METALS
• *PYRIDINES
• *SALTS
• *CROSSLINKING(CHEMISTRY)
• GRAVIMETRIC ANALYSIS
• ASHES
• GLASS TRANSITION TEMPERATURE
• ZINC
• DIFFERENTIAL SCANNING CALORIMETRY
• PHYSICAL PROPERTIES
• INFRARED SPECTROSCOPY
• CATIONS
• COPPER

Subject Categories:

• Inorganic Chemistry
• Organic Chemistry
• Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE