RESEARCH AND REPORTS ON PHOTOCHROMIC MATERIALS WHICH MAY BE USED AS EYE PROTECTIVE DEVICES

reportActive / Technical Report | Accession Number: AD0427601 | Open PDF

Abstract:

Studies of the thermal switching properties 5,7-dichloro-6- nitroindolinobenzospiropyran are completed. Rate constants and equilibrium constants are obtained for all processes taking place in both ethanol and toluene over a temperature range from 0 C to 60 C. The thermo dynamic parameters for these processes are calculated. Phenmenological equations describing photochemical switching processes of this compound are derived and appear verified by experimental data. True quantum efficiencies for both opening and closing processes of the spiropyran ring obtained. The photochemical, thermal and spectral properties of seven other photochromic compounds are investigated in toluene solutions at 20 C. There appears to be a considerable variance in important parameters among the different compounds.

Author(s):
Bowman, Richard E. ; Fox, Richard E. ; Kresch, Alan J. ; Taylor, J. E.
Author Organization(s):
NATIONAL CASH REGISTER CO DAYTON OH
Descriptive Note:
Final engineering rept. 1 May 1961-30 Apr 1963
Annotation:
Photochromic materials which may be used as eye protective devices.
Pagination:
0180

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Availability: Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
AF-41(657)-406
Monitor Series:
SAM
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_6.3_Net Management; JCA_6.1.1_Wired Transmission; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_1_Force Support
Modernization Areas:
Quantum Science and Computing; 5G; Cyber
Communities of Interest:
Biomedical
Descriptor(s):
*EYE SAFETY, *HEALTH PHYSICS, *EYEGLASSES, *PHOTOCHROMISM, NUCLEAR EXPLOSIONS, WOUNDS AND INJURIES, AROMATIC COMPOUNDS, PROTECTIVE CLOTHING, THERMAL RADIATION, CHLORINE COMPOUNDS, NITRATES, BURNS(INJURIES), SPIRO COMPOUNDS, NITROGEN HETEROCYCLIC COMPOUNDS, POLYCYCLIC COMPOUNDS, OXYGEN HETEROCYCLIC COMPOUNDS
Field(s)/Group(s):
Protective Equipment
Keyword(s):
INDOLE, PHOTOCHROMIC MATERIALS, SPIROPYRANS, INFRARED SPECTRA, SYNTHESIS(CHEMISTRY)
Report Date:
1963 Apr 30