TY - JOUR
T1 - Amphiphilic poly(N,N-dimethylamino-2-ethyl methacrylate)-g-poly(ε- caprolactone) graft copolymers
T2 - Synthesis and characterisation
AU - Mespouille, L.
AU - Degée, Ph
AU - Dubois, Ph
PY - 2005/6/1
Y1 - 2005/6/1
N2 - Amphiphilic poly(N,N-dimethylamino-2-ethyl methacrylate)-g-poly(ε- caprolactone) graft copolymers (PDMAEMA-g-PCL) with various compositions and molecular weights were synthesised via a fully controlled three-step strategy. First, poly(ε-caprolactone) macromonomers (PCLMA) were prepared by ring-opening polymerization (ROP) of ε-caprolactone (CL) initiated by aluminum triisopropoxide (Al(OiPr)3), followed in a second step by quantitative esterification of PCL hydroxy end-groups with a methacrylic acid derivative. Finally, the controlled copolymerization of PCLMA and N,N-dimethylamino-2-ethyl methacrylate (DMAEMA) was carried out by atom transfer radical polymerisation (ATRP) in THF at 60 °C using CuBr ligated with 1,1,4,7,10,10, hexamethyl triethylenetetramine and ethyl 2-bromoisobutyrate as catalyst and initiator, respectively. Furthermore, PDMAEMA-g-PCL graft copolymers were reacted with methyl iodide to convert the pendant tertiary amines into quaternary ammonium iodides increasing accordingly their water solubility. Some preliminary experiments was further carried out by tensiometry and dynamic light scattering in order to shed so light on the tensioactive behaviour of these amphiphilic graft copolymers (with protonated amines or quaternary ammonium cations).
AB - Amphiphilic poly(N,N-dimethylamino-2-ethyl methacrylate)-g-poly(ε- caprolactone) graft copolymers (PDMAEMA-g-PCL) with various compositions and molecular weights were synthesised via a fully controlled three-step strategy. First, poly(ε-caprolactone) macromonomers (PCLMA) were prepared by ring-opening polymerization (ROP) of ε-caprolactone (CL) initiated by aluminum triisopropoxide (Al(OiPr)3), followed in a second step by quantitative esterification of PCL hydroxy end-groups with a methacrylic acid derivative. Finally, the controlled copolymerization of PCLMA and N,N-dimethylamino-2-ethyl methacrylate (DMAEMA) was carried out by atom transfer radical polymerisation (ATRP) in THF at 60 °C using CuBr ligated with 1,1,4,7,10,10, hexamethyl triethylenetetramine and ethyl 2-bromoisobutyrate as catalyst and initiator, respectively. Furthermore, PDMAEMA-g-PCL graft copolymers were reacted with methyl iodide to convert the pendant tertiary amines into quaternary ammonium iodides increasing accordingly their water solubility. Some preliminary experiments was further carried out by tensiometry and dynamic light scattering in order to shed so light on the tensioactive behaviour of these amphiphilic graft copolymers (with protonated amines or quaternary ammonium cations).
KW - Amphiphilic graft copolymers
KW - Atom transfer radical polymerization
KW - Copolymerization
KW - Macromonomer
KW - Tensioactive properties
UR - http://www.scopus.com/inward/record.url?scp=17444417081&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2004.12.016
DO - 10.1016/j.eurpolymj.2004.12.016
M3 - Article
AN - SCOPUS:17444417081
SN - 0014-3057
VL - 41
SP - 1187
EP - 1195
JO - European Polymer Journal
JF - European Polymer Journal
IS - 6
ER -