TY - JOUR
T1 - ABC-type hetero-arm star terpolymers through "click" chemistry
AU - Altintas, Ozcan
AU - Hizal, Gurkan
AU - Tunca, Umit
PY - 2006/10/1
Y1 - 2006/10/1
N2 - Hetero-arm star ABC-type terpolymers, poly(methyl methacrylate)- polystyrene-poly(tert-butyl acrylate) (PMMA-PS-RBA) and PMMA-PS-poly(ethylene glycol) (PEG), were prepared by using "Click" chemistry strategy. For this, first, PMMA-b-PS with alkyne functional group at the junction point was obtained from successive atom transfer radical polymerization (ATRP) and nitroxide-mediated radical polymerization (NMP) routes. Furthermore, PtBA obtained from ATRP of tBA and commercially available monohydroxyl PEG were efficiently converted to the azide end-functionalized polymers. As a second step, the alkyne and azide functional polymers were reacted to give the hetero-arm star polymers in the presence of CuBr/N,N,N′,N″,N″- pentamethyldiethylenetriamine (PMDETA) in DMF at room temperature for 24 h. The hetero-arm star polymers were characterized by 1H NMR, GPC, and DSC.
AB - Hetero-arm star ABC-type terpolymers, poly(methyl methacrylate)- polystyrene-poly(tert-butyl acrylate) (PMMA-PS-RBA) and PMMA-PS-poly(ethylene glycol) (PEG), were prepared by using "Click" chemistry strategy. For this, first, PMMA-b-PS with alkyne functional group at the junction point was obtained from successive atom transfer radical polymerization (ATRP) and nitroxide-mediated radical polymerization (NMP) routes. Furthermore, PtBA obtained from ATRP of tBA and commercially available monohydroxyl PEG were efficiently converted to the azide end-functionalized polymers. As a second step, the alkyne and azide functional polymers were reacted to give the hetero-arm star polymers in the presence of CuBr/N,N,N′,N″,N″- pentamethyldiethylenetriamine (PMDETA) in DMF at room temperature for 24 h. The hetero-arm star polymers were characterized by 1H NMR, GPC, and DSC.
KW - Alkyne
KW - Atom transfer radical polymerization
KW - Azide
KW - Click chemistry
KW - Hetero-arm star polymers
KW - Nitroxide-mediated radical polymerization
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U2 - 10.1002/pola.21633
DO - 10.1002/pola.21633
M3 - Article
AN - SCOPUS:33749466760
SN - 0887-624X
VL - 44
SP - 5699
EP - 5707
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 19
ER -