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. Author manuscript; available in PMC: 2010 Jul 20.
Published in final edited form as: J Control Release. 2009 Mar 31;137(2):152–159. doi: 10.1016/j.jconrel.2009.03.016

Scheme 1.

Scheme 1

Copolymer synthesis, (i) N, N-dimethylaminopyridine, p-toluene sulfonic acid monohydrate, N, N-diisopropylcarbodiimide/dichloromethane, RT, 24 h; (ii) trifluoroacetic acid, triisopropyl silane/water, RT, 5 h.