Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci
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Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci
Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci
Chinese Journal of Polymer Science2015年33卷第12期 页码:1730-1740
Affiliations:
a.The State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, China
b.Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
Author bio:
*Wan-tai Yang (杨万泰), E-mail: yangwt@mail.buct.edu.cn
Zhuo Li, Yu-hong Ma, Wan-tai Yang. Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci[J]. Chinese Journal of Polymer Science, 2015,33(12):1730-1740.
Zhuo Li, Yu-hong Ma, Wan-tai Yang. Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci[J]. Chinese Journal of Polymer Science, 2015, 33(12): 1730-1740. DOI: 10.1007/s10118-015-1716-x.
Zhuo Li, Yu-hong Ma, Wan-tai Yang. Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci[J]. Chinese Journal of Polymer Science, 2015,33(12):1730-1740.DOI: 10.1007/s10118-015-1716-x.
Zhuo Li, Yu-hong Ma, Wan-tai Yang. Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci[J]. Chinese Journal of Polymer Science, 2015, 33(12): 1730-1740. DOI: 10.1007/s10118-015-1716-x.DOI:
Polypropylene/Silica Nanocomposites in situ Prepared via Sol-Gel Reactions Using Porous Spherical Poly(propylene-g-(styrene-alt-maleic anhydride)) Granules as Reaction Loci
Using the porous polypropylene (PP) granules consisting of submicroparticles prepared by the reactor granular technology (RGT)
a facile process was developed to synthesize
in situ
polypropylene/silica nanocomposites where styrene-
alt
-maleic anhydride copolymers (PSM) were firstly grafted onto both the outer- and the inner-pore surfaces of PP granules via solid-phase grafting polymerization
and then a sol-gel reaction was conducted inside these micro-pores with the carboxyl acid derived from maleic anhydride as catalyst. TEM micrographs demonstrated that the silica nanoparticles obtained by this strategy had a size around 10-20 nm in diameter and uniformly dispersed in the PSM-based nanocomposites. More importantly
the silica nanoparticles could significantly reduce the size of PP spherulites. Consequently
the PP/silica nanocomposites with high transparency and good mechanical performance were achieved.
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