| http://www.w3.org/ns/prov#value | - ula encompasses trimeric, tetrameric, and higher moieties as well as oligomeric materials and polymeric materials, said materials containing three or more moieties of the formula [0055] wherein each Y, independently of the others, is a hydrogen atom or a bromine atom, each n, independently of the others, is an integer of 0, 1, 2, 3, or 4, and each R1, independently of the others, is an alkylene gr
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