NEW
SMA
RESINS
THE SMA 1000A RESIN MOLECULE HAS AN AVERAGE OF ONLY 8 STYRENE MALEIC ANHYDRIDE GROUPS.
POLYANHYDRIDE STRUCTURE: KEY TO CHEMICAL REACTIVITY Chemical reactivity is an outstanding property of theSMAstyrene-maleic anhydride resins. The anhydride groups along the short polymer chain react easily with alcohols to form esters; with alkalies to yield salts; with anhydrous ammonia to form the amide-ammonium salt; and with amines to form the amide-amine salt. SMA resins may be crosslinked with glycols, formaldehyde, formaldehyde-containing resins, or multi-valent metal cations to yield insoluble, three-dimensional thermoset-type materials. Samples and complete data available on letterhead request. T E X A S B U T A D I E N E e. C H E M I C A L C O R P O R A T I O N Polychemicals Department, 529 Fifth Avenue, New York 17, New York. TB&C also produces: Butadiene, Butene-1, Butene-2, Mixed Butylenes, Propylene, Alkylate, Avgas.
