Remote cure monitoring of polymeric resins by laser Raman spectroscopy
- Lawrence Livermore National Lab., CA (United States)
- Federal Aviation Administration, Atlantic City, NJ (United States). Technical Center
- South Carolina Univ., Columbia, SC (United States). Dept. of Chemistry
The validity of using Raman spectroscopy to monitor the cure chemistries of amine-cured epoxy is demonstrated by correlating NIR absorbance measurements with Raman measurements for a concentration series of bisphenol-A diglycidylether in its own reaction product with diethylamine. The intensity of a normalized Raman peak at 1240 cm{sup {minus}l}, assigned to the epoxide functionality, was found to be linearly related to the concentration of epoxide groups in the resin mixtures. Also, it is shown that the Ciba-Geigy Matrimid 5292 system can be monitored by ex-situ FT-Raman spectroscopy by observing changes in the carbonyl stretching (1773 cm{sup {minus}1}) or the C=C stretching of maleimide (1587 cm{sup {minus}1}) during the cure reaction.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10171667
- Report Number(s):
- UCRL-JC-112824; CONF-9305232-1; ON: DE93016445
- Resource Relation:
- Conference: 38. International Society for the Advancement of Material and Process Engineering (SAMPE) symposium and exhibition,Anaheim, CA (United States),10-13 May 1993; Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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