| http://www.w3.org/ns/prov#value | - The low molecular weight polyanhydride is preferably represented by Formula 4: ##STR7## or a substituted variation thereof, wherein (A) is a lower (C1 -C6) alkyl group, R is a hydrogen atom or a lower alkyl group, and n is a number of substituent groups averaging greater than 1. n is preferably about 3 to 4, inclusive.
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