Further studies on homo- and copolymerization of styrene through cpticl3-mao initiator system

• FRANCOM RABAGLIATI ^[1] ; DANIEL A CANALES ^[1] ; DANIELA E YAÑEZ ^[1] ; PAULINA ZAMORA ^[1] ; PAULA A ZAPATA ^[1]
  1. [1] Universidad de Santiago de Chile

     Universidad de Santiago de Chile

     Santiago, Chile

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 58, Nº. 4, 2013, págs. 2082-2086
• Idioma: inglés
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• Resumen

  • The copolymerization of styrene with cyclohexene, 1-methyl-1-cyclohexene and with norbornene at various styrene/comonomer molar ratio, using cyclopentadienyltitanium trichloride and methylaluminoxane, CpTiCl3-MAO, initiating system has been tested. Only the couple styrene-norbornene produce real styrene-norbornene copolymers, while comonomers cylohexene and 1-methyl-1-cyclohexene only yielded syndiotactic polystyrene, s-PS. The present paper also report results of exploratory experiments on the synthesis through in-situ polymerization of nanocomposites based on styrene/para-methylstyrene copolymer, S/p-MeS, including SiO2 nanoparticles where nanocomposites with modified SiO2 nanoparticles, showed a better dispersion of nanoparticles in the copolymer matrix.