ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Introduction of chlorine as a substituent or addition of zinc chloride lowers the decomposition temperature of cellulose and suppresses the flaming combustion by reducing the rate of production and the total amount of combustible volatiles. Samples of 6-chloro-6-deoxycellulose, with a low D.S., start to decompose with dehydrohalogenation. The resulting hydrogen chloride catalyzes the transglycosylation, dehydration, condensation and charring reactions as evidenced by production of large amounts of levoglucosenone, condensed tar, and char. A similar effect was produced by zinc chloride, except that it provided less levoglucosenone and more 3,6-anhydroglucose derivatives. Also, a larger amount of the additive was required to reach the optimal effect.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1978.070220503
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