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Preparation of nanocomposites based on styrene/(p-methylstyrene) and SiO2 nanoparticles, through a metallocene–MAO initiating system
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Preparation of nanocomposites based on styrene/(p-methylstyrene) and SiO2 nanoparticles, through a metallocene–MAO initiating system
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Preparation of nanocomposites based on styrene/(p-methylstyrene) and SiO2 nanoparticles, through a metallocene–MAO initiating system
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Journal Article
Preparation of nanocomposites based on styrene/(p-methylstyrene) and SiO2 nanoparticles, through a metallocene–MAO initiating system
2019
Overview
The preparation of nanocomposites, including styrene, tertbutylstyrene, and SiO
2
nanoparticles, in toluene solution was attempted by in situ polymerization using a cyclopentadienyltitaniumtrichloride–methylaluminoxane, CpTiCl
3
–MAO, initiator system. SiO
2
nanospheres (ca. 20 nm in diameter) were synthesized by the sol–gel method. The nanoparticles’ surface was modified with hexadecyltrimethoxysilane (Mod-SiO
2
Nps) 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 SiO
2
-Npts on the catalyst’s activity and on the thermal properties of the resulting nanocomposites was determined.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
