Controlled/"living" radical polymerization of 2-(dimethylamino)ethyl methacrylate

Macromolecules

Volumn 31, Issue 15, 1998, Pages 5167-5169

  Zhang, Xuan ^a   Xia, Jianhui ^a   Matyjaszewski, Krzysztof ^a  

^a CARNEGIE MELLON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CHARGE TRANSFER; GEL PERMEATION CHROMATOGRAPHY; MOLECULAR WEIGHT; MONOMERS; SOLVENTS;

ATOM TRANSFER RADICAL POLYMERIZATION; DIMETHYLAMINO ETHYL METHACRYLATE; LIGANDS;

FREE RADICAL POLYMERIZATION;

EID: 0032120622     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma980477j     Document Type: Article

References (27)

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25. In a typical experiment run in a flask, a dry round-bottom flask was charged with CuBr (13.4 mg, 0.093 mmol), 1,1,4,7,10,10-hexamethyltriethylenetetramine (25.4 μL, 0.093 mmol), 2-(dimethylamino)ethyl methacrylate (2 mL, 5.9 mmol), dichlorobenzene (2 mL), and a magnetic stir bar. The flask was fitted with a rubber septum and degassed by three freeze-pump-thaw cycles. The flask was immersed in an oil bath thermostated at 50 °C, and this was followed by dropwise addition of 2-bromopropionitrile (8 μL, 0.093 mmol). After various time intervals, samples were taken out via degassed syringes and dissolved in DMF to measure conversion (GC) and molecular weight (GPC).
26. In a typical sealed tube experiment, a dry long glass-tube was charged with CuBr (6.7 mg, 0.047 mmol), ligand (0.047 or 0.093 mmol), ethyl 2-bromoisobutyrate (6.8 μL, 0.047 mmol), 2-(dimethylamino)ethyl methacrylate (1 mL, 5.9 mmol), solvent (1 mL), and a magnetic stir bar. The glass tube was degassed by three freeze-pump-thaw cycles and sealed by flame. The glass tube was immersed in an oil bath thermostated at 50, 70, or 90 °C. After a certain time, the glass tube was taken out and broken. The sample was dissolved in DMF to measure conversion (GC) and molecular weight (GPC).
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