Polymer alloys of phosphonylated polystyrene or polyphenylene ox

Details Polymer alloys of phosphonylated polystyrene or polyphenylene ox Polymer alloys of phosphonylated polystyrene or polyphenylene ox

1975-08-14

1978-02-14

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210321R, 252 81, 260 25FP, 260873, 260874, 260899, B01D 1304, C08L 110

Patent

active

040737543

ABSTRACT:
Polymer alloys of a phosphorus-containing polymer component having the formula: ##STR1## WHEREIN X is hydrogen or halo; Z and Z' are each hydrogen or a phosphonate group PO(OR)(OR.sub.1) in which R and R.sub.1 are each alkyl or aryl, but are not both hydrogen, Y is a bivalent radical from an ethylenically unsaturated monomer copolymerized with styrene, and m, m', n, n' and p are zero or integers as specified; and a second polymer component compatible with and alloyed with the phosphorus-containing polymer component, the second component being a cellulose ester, or a polystyrene or unsaturated polyester resin. Polymer alloys thus constituted are particularly useful as fire-retardant and flame-resistant materials, and as membranes useful in the separation of solvents exhibiting differential permeabilities therethrough.

REFERENCES:
patent: 3864289 (1975-02-01), Pendall

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