期刊
CARBOHYDRATE POLYMERS
卷 97, 期 1, 页码 52-58出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.12.078
关键词
Chitosan; Latex; Nanoparticles; Rubber; Surface modification
资金
- Thailand Research Fund (TRF)/the Commission on Higher Education (CHE) [RTA5480007]
Poly(methyl methacrylate) (PMMA) latex stabilized by chitosan (CS) oligomer was synthesized via the miniemulsion polymerization. By using 1% CS solution (in 0.1 M acetic acid), the spherical PMMA-CS particles with an average size of 380nm were obtained. The positive zeta potentials at pH 2-7 confirmed the presence of CS as the outermost layer of the latex particles. Therefore, these particles directly interacted with the indigenous non-rubbers at the surface of sulphur prevulcanized natural rubber (SPNR) film. The deposition of PMMA-CS particles caused an increase in surface roughness of the coated SPNR film as a function of latex concentration and immersion time. The simple coating of the rubber substrate with PMMA-CS particles effectively reduced the in vitro cytotoxicity on L-929 cells. This study would be, therefore, helpful for development of latex gloves designed for hypersensitive users. (C) 2013 Elsevier Ltd. All rights reserved.
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