Layer-by-layer assembled nanoparticles: A novel method for surface modification of natural rubber latex film

Sruanganurak, Artit; Sanguansap, Kittiporn; Tangboriboonrat, Pramuan

doi:10.1016/j.colsurfa.2006.04.014

Cited by 31 publications

(29 citation statements)

References 25 publications

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“…These values indicated that the SPNR sheets fabricated in this present condition were not fully crosslinked. 8,11 However, its mechanical properties were in an acceptable range, as confirmed by the evidence in section Properties of PMMA/PEIcoated SPNR sheets.…”

Section: Adsorption Of Pmma/pei Nanoparticles On Spnr Sheets and C S supporting

confidence: 75%

“…7 In the similar purpose, Sruanganurak et al reported on a deposition of hard PMMA latex particles onto the polyacrylamide (PAAm) grafted NR sheets via layerby-layer (LbL) technique. 8 Previously, we are the first to report a convenient surface modification of SPNR sheet by polyethyleneimine-functionalized poly(methyl methacrylate) (PMMA/PEI) nanoparticles. The modification was successful without pretreatment steps of the SPNR sheet.…”

Section: Introductionmentioning

confidence: 99%

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Physico‐mechanical properties of natural rubber sheets coated by polyethyleneimine‐functionalized poly(methyl methacrylate) nanoparticles

Duangphet

Jenjob

Sunintaboon

et al. 2011

J of Applied Polymer Sci

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ABSTRACT:The surface modification of sulfur-prevulcanized natural rubber (SPNR) sheets by the polyethyleneimine-functionalized-poly(methyl methacrylate) (PMMA/ PEI) nanoparticles was successfully performed via a simple dipping method. The percentage of surface coverage (C s ) of the nanoparticles on SPNR sheets was found to be affected by a variation of nanoparticle latex concentrations and immersion times. The adsorption isotherm of PMMA/PEI nanoparticles on SPNR sheets was analyzed and found to fit well to the Freundlich model. After coating, it can be observed that the presence of PMMA/PEI nanoparticles on SPNR surface had no effects over the SPNR mechanical properties e.g., tensile strength, elongation at break, and hardness. On the other hand, the coated SPNR sheets showed a reduction of surface friction coefficients and interfacial adhesion up to 45 and 59%, respectively. Furthermore, PMMA/PEI nanoparticles adsorbed on the SPNR surface was subjected to stretching and wearing conditions, and found to be stable for at least seven stretching and wearing cycles.

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Section: Adsorption Of Pmma/pei Nanoparticles On Spnr Sheets and C S supporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Physico‐mechanical properties of natural rubber sheets coated by polyethyleneimine‐functionalized poly(methyl methacrylate) nanoparticles

Duangphet

Jenjob

Sunintaboon

et al. 2011

J of Applied Polymer Sci

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“…2 The SPNR-g-PAAm sheet was then immersed into PMMA latex synthesized by the soap-free emulsion polymerization using potassium persulphate (KPS) as initiator. To obtain anionic PMMA particles with the size of 162, 364, 480, or 626 nm, MMA concentration of 0.18, 1.46, 2.19, or 3.28M, respectively, was added in the aqueous solution of KPS (0.18 g) dissolved in deionized water (137 g) and the polymerization took place at 80 C for 2 h. The remaining steps and characterizations were carried out as explained elsewhere.…”

Section: Surface Modification Of Spnr Sheetmentioning

confidence: 99%

“…1 Recently, the mimetic behavior has been obtained by deposition of poly (methyl methacrylate) (PMMA) nanoparticles onto the SPNR film by using the simple and versatile Layer-by-Layer (LbL) technique. 2,3 The surface charge on SPNR sheet was derived from grafted polyacrylamide (PAAm), under UV, onto the rubber surface pretreated with Ar plasma. By the electrostatic interaction between the negative PMMA latex particles and the SPNR grafted with PAAm (SPNRg-PAAm), the possible loss of coated particles is, therefore, overcome.…”

Section: Introductionmentioning

confidence: 99%

Reduction of surface friction of natural rubber film coated with PMMA particle: Effect of particle size

Anancharungsuk

Taweepreda

Wirasate

et al. 2009

J of Applied Polymer Sci

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The friction coefficient of the sulphurprevulcanized natural rubber (SPNR) film could be effectively reduced by deposition of poly(methyl methacrylate) (PMMA) particles. The nanoscale surface roughness of rubber, determined by atomic force microscope, was directly proportional to the particle size of PMMA particle at 12% surface coverage (Cs). The %Cs and surface roughness of the modified SPNR increased, while the friction coefficient decreased, with increasing PMMA latex concentration and immersion time. By using a mixture of latexes having both large and small sizes, the increase in the amount of small particles resulted in the better distribution of large particles deposited on the rubber surface.

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“…Adsorption of PMMA Latex Particles on NR Sheet [11] The surface of NR sheet (1.5 Â 4 Â 0.1 cm 3 ) was cleaned with methanol and Milli-Q water for 15 min each in an ultrasonic bath and then dried in air. The cleaned rubber strip was next treated with Ar plasma (100 W, 13.56 MHz under 0.5 Torr) for 10 s and then exposed to the atmosphere for 10 min.…”

Section: Encapsulation Efficiencyð%þmentioning

confidence: 99%

Antiseptic Nanocapsule Formation via Controlling Polymer Deposition onto Water‐in‐Oil Miniemulsion Droplets

Paiphansiri

Tangboriboonrat

Landfester

2007

Macromolecular Symposia

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Summary:The stable nanodroplet was prepared by inverse miniemulsion with an aqueous antiseptic solution dispersed in an organic medium of solvent/nonsolvent mixture containing an oil-soluble surfactant and the polymer for shell formation. The change in gradient of the solvent/nonsolvent mixture, obtained by heating at 50 8C, led to the precipitation of the polymer in the organic phase and deposition onto the large interphase of the aqueous miniemulsion droplets. The monodisperse polymer nanocapsule, with the size range of 80-240 nm, dispersed in cyclohexane phase was achieved as a function of surfactant concentration. By variation of polymer content, molecular weight and type, an encapsulation efficiency of 20-100% was obtained as detected by proton-nuclear magnetic resonance spectroscopy measurement. The nanocapsule could be easily transferred into water as continuous phase resulting in aqueous dispersion with nanocapsule containing the antiseptic agent as an aqueous core. The encapsulated amount of the antiseptic agent was evaluated to indicate the durability of the nanocapsule's wall. Additionally, the different types of polymer having glass transition temperature ranging from À60 to 1008C have been successfully used. Currently, the research work on the incorporation of nanocapsules onto natural rubber (NR) latex in order to prepare NR latex glove containing the antiseptic agent nanocapsules is carried out. By using the simple and versatile layer-by-layer (LbL) technique based mainly on an electrostatic interaction between oppositely charged species, the deposition of nanocapsules onto NR latex film has successfully been fulfilled.

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Layer-by-layer assembled nanoparticles: A novel method for surface modification of natural rubber latex film

Cited by 31 publications

References 25 publications

Physico‐mechanical properties of natural rubber sheets coated by polyethyleneimine‐functionalized poly(methyl methacrylate) nanoparticles

Physico‐mechanical properties of natural rubber sheets coated by polyethyleneimine‐functionalized poly(methyl methacrylate) nanoparticles

Reduction of surface friction of natural rubber film coated with PMMA particle: Effect of particle size

Antiseptic Nanocapsule Formation via Controlling Polymer Deposition onto Water‐in‐Oil Miniemulsion Droplets

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