Polymer Bulletin

, Volume 76, Issue 2, pp 1041–1058 | Cite as

Preparation of nanocomposites based on styrene/(p-methylstyrene) and SiO2 nanoparticles, through a metallocene–MAO initiating system

  • Paula A. ZapataEmail author
  • Paulina Zamora
  • Daniel A. Canales
  • Raúl Quijada
  • Rosario Benavente
  • Franco M. RabagliatiEmail author
Original Paper


The preparation of nanocomposites, including styrene, tertbutylstyrene, and SiO2 nanoparticles, in toluene solution was attempted by in situ polymerization using a cyclopentadienyltitaniumtrichloride–methylaluminoxane, CpTiCl3–MAO, initiator system. SiO2 nanospheres (ca. 20 nm in diameter) were synthesized by the sol–gel method. The nanoparticles’ surface was modified with hexadecyltrimethoxysilane (Mod-SiO2Nps) in order to improve the interactions with the polymer. The polymerization activity increased as the proportion of p-methyl styrene was increased in the initial feed. With respect to the effect of the incorporation of nanoparticles in the reactions, the catalytic activity increased slightly in the presence of 5 wt% of nanospheres compared to neat copolymerization without any nanoparticles. Our studies achieved a convenient route through in situ polymerization, avoiding further treatment of the nanocomposite. The thermal stability of the PS increased with nanoparticle incorporation. The effect of SiO2-Npts on the catalyst’s activity and on the thermal properties of the resulting nanocomposites was determined.


SiO2 nanospheres Nanocomposites Homo- and copolymerization Metallocene catalyst In situ copolymerization 



Financial support from DICYT Project, código 051641ZR_DAS, Vicerrectoría de Investigación, Desarrollo e Innovación, to Dr. P.A. Zapata, and from the Universidad de Santiago de Chile, and partial financial support by the Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) to Dr. F.M, Rabagliati under Project 108.5061, are gratefully acknowledged and financial support from MINECO Project MAT2016-79869_C2-1-P (AEI/FEDER, UE) to R. Benavente. Thanks are due to colleagues S. Muñoz-Guerra and A., Martínez de Ilarduya from Departament d’Enginyeria Química, ETSEIB, Universitat Politécnica de Catalunya, UPC, Barcelona, Spain, for performing NMR analysis of obtained polymers, P(S-co-p-MeS).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Paula A. Zapata
    • 1
    Email author
  • Paulina Zamora
    • 1
  • Daniel A. Canales
    • 1
  • Raúl Quijada
    • 2
  • Rosario Benavente
    • 3
  • Franco M. Rabagliati
    • 1
    Email author
  1. 1.Grupo de Polímeros, Departamento Ciencias del Ambiente, Facultad Química y BiologíaUniversidad Santiago de Chile, USACHSantiagoChile
  2. 2.Departamento de Ingeniería Química y Biotecnología, Facultad de Ciencias Físicas y MatemáticasUniversidad de Chile and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de los Materiales (CIMAT)SantiagoChile
  3. 3.Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)MadridSpain

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