Highly charged hollow latex particles prepared via seeded emulsion polymerization

Nuasaen, Sukanya; Tangboriboonrat, Pramuan

doi:10.1016/j.jcis.2013.01.012

Cited by 26 publications

(11 citation statements)

References 38 publications

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“…Figure presents the FT-IR spectrum of the PDVB-NPs under an attenuated-total reflection (ATR) mode. The peaks centered at wavenumbers of 708, 794, 829, 900, 1446, 1486, 1604, and 2926 cm –1 have been reported by Jafari et al and Nuasaen and Tangboriboonrat . The peaks with wavenumbers in the range of 700–950 cm –1 represent the C–H bending of alkene groups, and the peaks with wavenumbers in the range of 1430–1510 cm –1 are related to the CC stretching mode of benzene groups.…”

Section: Resultssupporting

confidence: 51%

“…The peaks centered at wavenumbers of 708, 794, 829, 900, 1446, 1486, 1604, and 2926 cm −1 have been reported by Jafari et al 22 and Nuasaen and Tangboriboonrat. 23 The peaks with wavenumbers in the range of 700−950 cm −1 represent the C−H bending of alkene groups, and the peaks with wavenumbers in the range of 1430−1510 cm −1 are related to the CC stretching mode of benzene groups. The peak centered at 1604 cm −1 represents the CC stretching mode of alkene groups.…”

Section: Resultsmentioning

confidence: 99%

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Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

et al. 2020

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Regulation of wetting and spreading of liquid on porous material plays an important role in a variety of applications, such as waterproofing, anti-icing, antioxidation, self-cleaning, etc. In this work, we reveal the role of back-surface coating with superhydrophobic nanoparticles in controlling the spreading of water droplets on cellulose-based papers. A layer of superhydrophobic polydivinylbenzene (PDVB) nanoparticles is spin-coated on the back surface of different types of papers. The spreading of a water droplet on the top, uncoated surface is dependent on the size of the PDVB nanoparticles in the coating. Using a relationship derived from Darcy's law, we observe that the energy barrier for the spreading of water droplets on three types of papers (heavy-weight, light-weight, and slight-weight papers) decreases with the decrease of the nanoparticle size in the back-surface coating. The spreading of the water droplet is dependent on the porous structure, permeability, and compressibility of the papers. The method presented in this work provides a feasible approach to use the back-surface coating to control the wettability of papers.

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Section: Resultssupporting

confidence: 51%

Section: Resultsmentioning

confidence: 99%

Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

et al. 2020

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“…The drastic decrease in the absolute value from À22.2 mV at pH 4 (-COOH, pK a $4.2) to a positive value of 15.6 mV at pH 2 originates from the protonation of -COO À of PAA. 32 The weight compositions of the hybrid MPNPs were determined by TGA and DTG, as summarized in Fig. 5.…”

Section: Resultsmentioning

confidence: 99%

Self-assembly of amphiphilic poly(styrene-b-acrylic acid) on magnetic latex particles and their application as a reusable scale inhibitor

et al. 2020

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“…The formation of hollow ZPP is proposed in Figure 7 and is different from the St/DVB system. Due to its relatively hydrophilic behavior, MMA resided nearly in the interface of water and emulsion droplet [ 18 , 42 ], while OA-ZnO NPs, DVB, and HD were in the inner region. Thus, there was a chemical gradient in the emulsion droplet.…”

Section: Resultsmentioning

confidence: 99%

Facile Control of Structured ZnO Polymeric Nanoparticles through Miniemulsion Polymerization: Kinetic and UV Shielding Effects

2021

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Zinc oxide polymeric nanoparticles (ZPPs) of poly (styrene-co-acrylic acid) P(St/AA), containing oleic acid modified zinc oxide nanoparticles (OA-ZnO NPs), were synthesized via miniemulsion polymerization. By simply adjusting the quantity of reactants, i.e., sodium dodecyl sulfate (SDS) surfactant, potassium persulfate (KPS) initiator, and divinyl benzene (DVB) crosslinking agent, the location of ZnO NPs were altered from the inner (core) to the outer (shell), leading to core-shell and Pickering-like morphologies, respectively. The Pickering-like ZPPs were obtained when using SDS at below or equal to the critical micelle concentration (CMC). At above the CMC, the complete encapsulation of OA-ZnO NPs within the ZPPs depicted a kinetically controlled morphology. The transition to Pickering-like ZPPs also occurred when reducing the KPS from 2 to 0.5–1%. Whereas the DVB accelerated the polymerization rate and viscosity in the growing monomer-swollen nanodroplets and, hence, contributed to kinetic parameters on particle morphology, i.e., an increase in the DVB content increased the rate of polymerization. A hollow structure was obtained by replacing styrene with the more hydrophilic monomer, i.e., methyl methacrylate. All ZPPs-incorporated poly (vinyl alcohol) (PVA) films greatly improved shielding performance over the UV region and were relatively transparent on a white paper background. Due to the large number of ZnO NPs in the central region and, hence, the ease of electron transfer, composite films containing core-shell ZPPs possessed the highest UV blocking ability. ZnO NPs in the outer part of the hollow and Pickering-like ZPPs, on the other hand, facilitated the multiple light scattering according to the difference of refractive indices between the inorganic shell and organic/air core. These results confirm the advantage of structured ZPPs and their potential use as transparent UV shielding fillers.

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Highly charged hollow latex particles prepared via seeded emulsion polymerization

Cited by 26 publications

References 38 publications

Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

Self-assembly of amphiphilic poly(styrene-b-acrylic acid) on magnetic latex particles and their application as a reusable scale inhibitor

Facile Control of Structured ZnO Polymeric Nanoparticles through Miniemulsion Polymerization: Kinetic and UV Shielding Effects

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