HOmogeneous Reverse Atom Transfer Radical Polymerization of Styrène Initiated by Peroxides

Macromolecules

Volumn 32, Issue 16, 1999, Pages 5199-5202

  Xia, Jianhui ^a   Matyjaszewski, Krzysztof ^a  

^a CARNEGIE MELLON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AROMATIC COMPOUNDS; CHEMICAL VARIABLES CONTROL; ELECTRON TRANSPORT PROPERTIES; MOLECULAR WEIGHT; PEROXIDES; POLYSTYRENES;

AZOBISISOBUTYRONITRILE; BENZOYL PEROXIDE; REVERSE ATOM TRANSFER RADICAL POLYMERIZATION;

FREE RADICAL POLYMERIZATION;

EID: 0032669482     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma990036f     Document Type: Article

References (24)

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18. Typical polymerizations are as follows. Solution: A dry roundbottom flask was charged with CuBr and dNbpy. The flask was sealed with a rubber septum and was cycled between vacuum and argon three times to remove the oxygen. Degassed monomer and solvent were added using degassed syringes. The flask was immersed in an oil bath held by a thermostat at the desired temperature and allowed to stir until the mixture became homogeneous. Then, BPO, dissolved in a small amount of monomer, was added dropwise. At timed intervals, samples were withdrawn from the flask using a degassed syringe and added to THF. Bulk: To a dry glass tube with copper halide and dNbpy under argon was added a solution of BPO dissolved in the monomer. Three freezepump-thaw cycles were performed, and the tube was sealed under vacuum and placed in an oil bath held by a thermostat at the desired temperature. The polymerization was stopped by cooling the tube in ice-water. Afterward, the tube was opened and the contents were dissolved in THF.
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