Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Jill C. Osborn"'
Publikováno v:
Polymer Degradation and Stability. 91:3360-3370
A polyester polyurethane, was subjected to humid and dry aging conditions at 70 °C with 75% and 0% relative humidity, respectively. Differences in molecular weight and quasi-static tensile strength between humid- and dry-aged samples are attributed
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 59:309-319
The effects of hydrostatic pressure upon (1) a segmented poly (ester urethane), (2) a hydrolytically degraded sample of the same polymer, and (3) models for the polyurethane and polyester segments in this polymer have been studied by Fourier transfor
Autor:
Steven R. Aubuchon, Richard A. Palmer, Darla Graff Thompson, Jill C. Osborn, Haochuan Wang, Anderson L. Marsh, Jon R. Schoonover, William R. Nichols
Publikováno v:
Macromolecules. 35:8794-8801
Variable temperature dynamic mechanical analysis (DMA) and Fourier transform infrared spectroscopy (FTIR) have been combined and applied to rheooptical (DMA-FTIR) studies of thin films of a poly(ester urethane). In this study, dynamic infrared linear
Autor:
Jon R. Schoonover, James P. Freyer, Judith R. Mourant, Kristin M. Omberg, Shuliang L. Zhang, Jill C. Osborn
Publikováno v:
Applied Spectroscopy. 56:813-819
Raman spectra, measured for viable suspensions of M1 and MR1 cells, demonstrate spectral differences correlating with an increased protein and phospholipid content relative to DNA in the MR1 cells. The M1 and MR1 cell lines consist of rat fibroblast
Autor:
Jon R. Schoonover, Richard A. Palmer, Jill C. Osborn, E. Bruce Orler, Debra A. Wrobleski, Darla Graff Thompson, Anderson L. Marsh, Haochuan Wang
Publikováno v:
Polymer Degradation and Stability. 74:87-96
Static and dynamic infrared linear dichroism data have been used to supply additional insight into changes in tensile properties as a consequence of hydrolytic degradation of a segmented poly(ester urethane). Unaged material responds to tensile defor