NASA Scientific and Technical Aerospace Reports

mechanical properties of the blended fluoropolymers do not differ significantly from those of the unfilled polymers.
DTIC
Augmentation; Fluorination; Fluoropolymers; Molecular Weight; Oligomers
20040111539 Air Force Research Lab., Kirkland AFB, NM
Investigation of the State-to-State Rotational Relaxation Rate Constants for Carbon Monoxide (CO) Using Infrared
Double Resonance
Phipps, Steve P.; Smith, Tony C.; Hager, Gordon D.; Heaven, Michael C.; McIver, J. K.; Jun. 2002; 13 pp.; In English
Contract(s)/Grant(s): F49620-01-1-0070; Proj-4866
Report No.(s): AD-A425556; No Copyright; Avail: CASI; A03, Hardcopy
State-to-state rotational relaxation of carbon monoxide (CO) has been studied using an ir double resonance technique.
Individual rotational lines of the (2-0) vibrational overtone band were pumped by a pulsed tunable ir laser and the subsequent
evolution of the v=2rotational population distribution was monitored by the absorption of a tunable cw ir laser via the (3-2)
band transitions. Both the excitation and probe lasers were linearly polarized, with linewidths that were narrower than the CO
Doppler width. Consequently, alignment and velocity relaxation effects were observed in these measurements. A data set
consisting of 54 time-dependent rotational state population profiles was acquired. The full CO-CO rotational relaxation matrix,
which consists of state-to-state rate constants for rotational levels up to J = 29, was deduced from computer simulations of
the data. Scaling and fitting laws were used to provide parametric representations of the rate constants. The three most
common models, modified exponential gap, statistical polynomial-exponential gap (SPEG), and energy corrected sudden with
exponential-power gap (ECS-EP) were investigated. We concluded that the SPEG law best reproduced the CO-CO rotational
energy transfer data. A propensity to preserve the CO parity in rotational energy transfer was observed for collisions where
the amount of energy transferred was small. Hence even deltaJ processes were favored for transitions between levels with low
J values. For near-single collisions events a correlation was noted between the amount of rotational energy transferred and the
degree of velocity distribution relaxation. This correlation yielded insights regarding the energy transfer dynamics.
DTIC
Carbon Monoxide; Constants; Infrared Radiation; Reaction Kinetics
20040111570 Starks Associates, Inc., Buffalo, NY
Preparation of Bulk Drug for the U.S. Army Drug Development Program
Novotny, Jaroslav F.; Mar. 2004; 29 pp.; In English
Contract(s)/Grant(s): DAMD17-99-D-0005
Report No.(s): AD-A425622; No Copyright; Avail: CASI; A03, Hardcopy
The fo11owing four compounds were synthesized: 2H- Pyrido2, 3-D1,3)OXAZINE-2,4(1H)-dione; Pyrido(2’, 3’:4, 5
pyrimido 1, 2-Aindole- 5, 11-dione, 9-methoxy-; pyrido2’, 3’:4, 5)PYRIMIDO1, 2-Aindole-5, 11-dione, 9-hydroxy-;
1-(5,11-dioxo- 5,11-dihydropyrido2’, 3’ :4, 5-pyrimido1, 2-Aindol-9-yl) hemisuccinate.
DTIC
Chemical Composition; Drugs
20040111745 California Univ., Irvine, CA
Molecular Photodynamics in Superfluid He
Apkarian, V. A.; Jan. 2004; 4 pp.; In English
Contract(s)/Grant(s): F49620-01-1-0083
Report No.(s): AD-A425950; No Copyright; Avail: CASI; A01, Hardcopy
A fruitful investigation of photodynamics in superfluid helium was accomplished under this AFOSR grant. The author
carried out the first real-time measurements of molecular dynamics in superfluid helium, and he introduced the first method
for simulations of dynamics (all other methods aim at calculating stationary eigenstates). Moreover, he addressed the principal
question that he had set out to investigate, namely, the scaling of concepts of superfluidity to molecular length and time scales.
This was accomplished by the combination of ultrafast time-resolved measurements, high- level ab initio theory to develop
effective potentials, and the development of time-dependent density functionals to simulate the observables and to test out the
predictions of two-fluid hydrodynamics that was originally developed to treat macroscopic phenomenology in superfluid
helium. In the first of the publications in this field, the author demonstrated the use of strong-fields in superfluid helium to
generate Rydberg states that lie above 18 eV. The experiments allowed the detailed description of strong-field induced
ionization, localization of charges, formation of electron bubbles, and their diffusion-controlled recombination. With a
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