The Effects of the Reaction Conditions on the Grafting Degree of SiO2-g-PMAA Particle

Ke Hong Zhang; Hui Xiao; Jun Juan Du

doi:10.4028/www.scientific.net/AMR.581-582.301

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 581-582The Effects of the Reaction Conditions on the...

The Effects of the Reaction Conditions on the Grafting Degree of SiO₂-g-PMAA Particle

Abstract:

Modified MPS-SiO₂ particle was obtained by the bonding of 3-methacryloxypropyl trimethoxysilane (KH-570) on the surface of silica gel particle. The methacrylic acid (MMA) monomers were grafted on the surface of MPS-SiO₂ particle to prepare the grafting particles SiO₂-g-PMAA. The effects of reaction conditions on the graft degree were explored. The results indicate that the MMA monomers can be easily grafted on the surface of silica gel particle by using the method of graft polymerization. During the graft polymerization, the grafted polymer layer is a hindrance to the subsequent graft polymerization. Then the grafting degree of the polymer under a certain condition has a limiting value. The reaction conditions, such as monomer concentration, the amount of initiator, reaction temperature, have remarkably influence on the graft polymerization of SiO₂-g-PMAA.

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Periodical:

Advanced Materials Research (Volumes 581-582)

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301-304

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.581-582.301

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Online since:

October 2012

Authors:

Ke Hong Zhang, Hui Xiao, Jun Juan Du

Keywords:

Graft Degree, Graft Polymerization, Methacrylic Acid, Reaction Conditions, Silica Gel

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