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Polyphosphazenes - New polymers with inorganic backbone atomsUnique and useful properties of the class of nonhydrocarbon, nonhalocarbon, nonsilicone polymers known as polyphosphazenes are discussed at length. These polymers, with molecular weights to 4 million (degree of polymerization 15,000), can be fabricated as tubes, fibers, woven fabrics, flexible films, or plates, and many variants are stable to attack by water, bases, aqueous acids, jet fuels, oils, hydraulic fluids, gasoline, or other hydrocarbons. Rubbery polymers with these properties can be fashioned into flexible hose, fuel hose, gaskets, or O-rings. Since they do not provoke clotting reactions in blood, and reveal no carcinogenic effects to date, they are considered for internal prosthetic applications (replacement bone, temporary skin, heart valves), as biodegradable suturing material, as carriers for slow release of drugs, and as carriers for chemotherapeutic agents against cancers.
Document ID
19760062050
Document Type
Reprint (Version printed in journal)
Authors
Allcock, H. R. (Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 8, 2013
Publication Date
September 24, 1976
Publication Information
Publication: Science
Volume: 193
Subject Category
NONMETALLIC MATERIALS
Distribution Limits
Public
Copyright
Other