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:
This paper describes the synthesis of aryl polyphosphonates from the reactions of phenylphosphonic dichloride [benzene phosphorus oxydichloride (BPOD)] with 4,4′-thiodiphenol (TDP) and with 4,4′-sulfonyldiphenol (SDP) employing a dry chlorinated hydrocarbon polymerization solvent, an amine acid acceptor and under low temperature conditions. The glass transition temperatures of the polymers from BPOD/TDP are 146°C and 83°C, respectively, and the polymers begin to lose weight at about 395°C in a nitrogen atmosphere. These polymers have good flame retardancy (FR), as indicated by high limiting oxygen indices (LOI) of 50-60. Thermoplastic polybutylene terephthalate containing 7% BPOD/SDP or BPOD/TDP polymer as an FR additive has LOI values of 29 and 30, respectively.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1983.070280317
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