MICROPARTICULES OU NANOPARTICULES COMPRENANT UN COPOLYMERE BIODEGRADABLE DE POLYESTERAMIDE DESTINEES A UNE UTILISATION DANS L'ADMINISTRATION D'AGENTS BIOACTIFS
The present invention relates to micro-or nanoparticles comprising a polyesteramide (PEA) having a chemical formula described by structural formula (IV), Formula (IV) wherein - m+p varies from 0.9-0.1 and q varies from 0.1 to 0.9 - m+p+q=1 whereby m or p could be 0 - n is about 5 to about 300； (pref. 50-200) - R1 is independently selected from the group consisting of (C2-C20) alkylene, (C2-C20) alkenylene, -(R9-CO-O-R10-O-CO-R9)-, -CHR11-O-CO-R12-COOCR11- and combinations thereof； - R3 and R4 in a single backbone unit m or p, respectively, are independently selected from the group consisting of hydrogen, (C1C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, (C1-C6)alkyl, -(CH2)SH, -(CH2)2S(CH 3), -CH2OH, -CH(OH)CH3, -(CH2)4NH3+, --(CH2)3NHC(=NH2+)NH2, -CH2COOH, -(CH2)COOH, -CH2-CO-NH2, -CH2CH2-CO-NH2, -- -CH2CH2COOH, CH3-CH2-CH(CH3)-, (CH3)2-CH-CH2-, H2N-(CH2)4-, Ph-CH2-, CH=C-CH2-, HO-p-Ph-CH2-, (CH3)2-CH-, Ph-NH-, NH-(CH2)3-C-, NH-CH=N-CH=C-CH2-. - R5 is selected from the group consisting of (C2-C20)alkylene, (C2-C20)alkenylene, alkyloxy or oligoethyleneglycol - R6 is selected from bicyclic-fragments of 1,4:3,6-dianhydrohexitols of structural formula (III)； Formula III - R7 is selected from the group consisting of (C6-C10)aryl (C1-C6)alkyl - R8 is -(CH2)4-； - R9 or R10 are independently selected from C2-C12 alkylene or C2-C12 alkenylene. - R11 or R12 are independently selected from H, methyl, C2-C12 alkylene or C2-C12 alkenylene whereby a is at least 0.05 and b is at least 0.05 and a+b=1.
