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Polymers having the following general formula have been synthesised where R is a long chain alkyl substituent such as -C 16 H 33 . The number of skeletal oxygen atoms n = 5 or 6 (coded C16O5 or C16O6) so that the helix formed by association of neighbouring side groups R, has 18 or 21 skeletal bonds per rotation and so imitates the PEO-Li + or PEO-Na + 2 ...
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