A NEW TYPE OF POLYMERIZATION INVOLVING ORGANOPHOSPHORUS COMPOUNDS AS CATALYSTS
Quarterly progress rept. no. 3, 1 Dec 1963-28 Feb 1964
FRANKLIN INST PHILADELPHIA PA LABS FORRESEARCH AND DEVELOPMENT
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The program is concerned with determining the feasibility of using a newly found polymerization of N-vinylcarbazole by phosphorus compounds in detecting the presence of toxic air contaminants. A kinetic study of the polymerization of N-vinylcarbazole at 25C in methylene chloride with diethylphosphoric acid and diethylchlorophosphate was begun. The results indicate that the hydrolysis of diethylchlorophosphate is very rapid, does not influence the rate of polymerization, and is essentially complete to yield two catalytically active acids. Neither catalyst or water are consumed in the polymerization. The sensitivity of the system was determined 0.04 micrograms of diethylchlorophosphate produces a visually detectable turbidity due to polymerization of N-vinylcarbazole in acetonitrile within 14 mins. A search for less volatile polar solvent media for the polymerization of N-vinylcarbazole was begun.
- Polymer Chemistry
- Chemical, Biological and Radiological Warfare