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. . monomer, a corre- h droxyl-contammg has been I n the case of a y h. h the hydroxyl group t c •n w 1c "bl t depro e - sponding monom~:/group which is susceptJ ~eo used and replac~d by ~~ a;pically ethoxyethoxy, _may ith weak acid tion wit~ a~1 ’ be followed by deprotect10n :ay have been polymenzat10n . 1 the hydroxyl group d ter Alternative Y, an wa • 

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