Publication: Polyethyleneimine-functionalized poly(methyl methacrylate) colloidal nanoparticles for directly coating natural rubber sheet
Issued Date
2009-10-20
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ISSN
09277757
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2-s2.0-70349785069
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Mahidol University
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SCOPUS
Bibliographic Citation
Colloids and Surfaces A: Physicochemical and Engineering Aspects. Vol.350, No.1-3 (2009), 114-120
Suggested Citation
Panya Sunintaboon, Sitthi Duangphet, Pramuan Tangboriboonrat Polyethyleneimine-functionalized poly(methyl methacrylate) colloidal nanoparticles for directly coating natural rubber sheet. Colloids and Surfaces A: Physicochemical and Engineering Aspects. Vol.350, No.1-3 (2009), 114-120. doi:10.1016/j.colsurfa.2009.09.013 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/27376
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Title
Polyethyleneimine-functionalized poly(methyl methacrylate) colloidal nanoparticles for directly coating natural rubber sheet
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Abstract
This work illustrated a convenient surface modification of sulphur-prevulcanized natural rubber (SPNR) sheet with poly(methyl methacrylate) (PMMA) colloidal nanoparticles without pre-treatment of the rubber. The SPNR sheet was simply immersed into the latex of PMMA core that was functionalized with polyethyleneimine (PEI) shell (PMMA/PEI) via a soap-free emulsion polymerization. The presence of PMMA/PEI nanoparticles on the SPNR sheet was revealed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). It was also traced by the changes of surface roughness, adhesion force, and relative surface stiffness obtained from atomic force microscopy (AFM) analysis. The surface coverage (Cs) values depended on the variation of immersion time and particle concentration. Water contact angles on the PMMA/PEI-coated SPNR sheet decreased with increasing Csvalues. © 2009 Elsevier B.V. All rights reserved.