Styrene polymerization with organoeuropium compounds containing pyrazinamide

Inorganic Chemistry Communications

Volumn 9, Issue 2, 2006, Pages 228-230

  Miotti, Renata Diana ^a   De Souza Maia, Alessandra ^a   Rodrigues, Janaína Gonçalves ^a   De Oliveira, Wanda ^a  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

Chloride; Methanesulfonate; Organolanthanides; Pyrazinamide; Styrene polymerization

Indexed keywords

EID: 31344447236     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.inoche.2005.11.016     Document Type: Article

References (18)

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11. Styrene was pretreated with calcium chloride, then dried over calcium hydride and distillated under vacuum. Toluene was dried over Na/benzophenone and distillated right before use. MAO (methylaluminoxane, 10 wt% Al in toluene) was purchased from Akzo Nobel.
12. In a Schlenk flask, 7-12 mg of catalyst (10-20 μmol) was dispersed in 1 mL of toluene. Styrene (2 mL) was added and finally MAO in molar ratios of 100, 500 or 700. Some experiments were carried out in absence of solvent. The mixture was stirred for 1.5 or 3 h at constant temperature (60°C). Then, ethanol/HCl (5%) solution was added to interrupt reaction. The mixture was filtered, and the polymer extracted from the solid residue using toluene. After solvent evaporation, polymers were dried under vacuum. Blank runs using no organolanthanide compounds, or no MAO, or none, were also carried out to check styrene polymerization.
13. -1.
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16. 6 were recorded in a DPX 300 Bruker Spectrometer.
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18. G. Allen Comprehensive Polymer Science vol. 1 1989 Pergamon Press Oxford