| http://www.w3.org/ns/prov#value | - The copolymers of C2-C4-alkylene oxides may be either random copolymers, when mixtures of at least 2 alkylene oxides are polymerized, or block copolymers, when firstly one alkylene oxide, for example ethylene oxide, is polymerized and then another alkylene oxide is polymerized, e.g. propylene oxide.
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