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Definition of block copolymer
: a copolymer that is made up of a series of blocks of simpler polymers
The Akron polymer system is essentially an extension of a block copolymer of styrene and dienes (e.g., isoprene, butadiene) developed in the early 1960s … — Chemical Week
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Time Traveler for block copolymer
The first known use of block copolymer was in 1954
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