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Multiarm Star Block and Multiarm Star Mixed-Block Copolymers via Azide-Alkyne Click Reaction
被引:43
作者:
Durmaz, Hakan
[2
]
Dag, Aydan
[2
]
Erdogan, Elif
[2
]
Demirel, A. Levent
[1
]
Hizal, Gurkan
[2
]
Tunca, Umit
[2
]
机构:
[1] Koc Univ, Dept Chem, TR-34450 Istanbul, Turkey
[2] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey
关键词:
atomic force microscopy (AFM);
azide-alkyne click reaction;
dynamic light scattering (DLS);
GPC;
multiarm star polymer;
triple detection-GPC;
SELECTIVE DEGRADABLE LINKAGES;
ONE-POT SYNTHESIS;
DIELS-ALDER;
RADICAL POLYMERIZATION;
TERMINAL ALKYNES;
CHEMISTRY;
POLYMERS;
COMBINATION;
CYCLOADDITION;
ATRP;
D O I:
10.1002/pola.23765
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
The synthesis of multiarm star block (and mixed-block) copolymers are efficiently prepared by using Cu(I) catalyzed azide-alkyne click reaction and the arm-first approach. alpha-Silyl protected alkyne polystyrene (alpha-silyl-alkyne-PS) was prepared by ATRP of styrene (St) and used as macroinitiator in a crosslinking reaction with divinyl benzene to successfully give multiarm star homopolymer with alkyne periphery. Linear azide end-functionalized poly(ethylene glycol) (PEG-N-3) and poly (tert-butyl acrylate) (PtBA-N-3) were simply clicked with the multiarm star polymer described earlier to form star block or mixed-block copolymers in N,N-dimethyl formamide at room temperature for 24 h. Obtained multiarm star block and mixed-block copolymers were identified by using H-1 NMR, GPC, triple detection-GPC, atomic force microscopy, and dynamic light scattering measurements. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 99-108, 2010
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页码:99 / 108
页数:10
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