Effect of cationic monomer on properties of cationic fluorocarbon emulsifier-free emulsion

Wang, Chen; Li, Xiaorui; Du, Biao; Li, Peizhi; Mi, Xiaohui

doi:10.1007/s10965-013-0094-8

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…The balance of both the factors results in that the water resistance has been first improved greatly and then slightly with increasing the PDMS content. This result suggests that the PDMS‐modified PU‐AC hybrid emulsions has strong potential as a coating material for water repellent material applications due to their low cost and easy preparation in comparison with the other materials, such as PDMS‐modified PU and AC, their fluorinated polymers or copolymers, and the crosslinked porous polymers …”

Section: Resultsmentioning

confidence: 93%

“…Lu and Larock used soybean oil‐based polyol to synthesize environmentally friendly PU‐AC hybrid latexes with high performance for coating applications. To improve the surface hydrophobic, fluorinated PU‐AC hybrid emulsions has been synthesized by Xin et al ., Wang et al ., and the other research groups . In the previous studies, we used allyl polyoxyethylene ether (APEE) as coupling agent between PU and AC to synthesize stable waterborne PU‐AC hybrid emulsions with high AC/PU weight ratio .…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of poly(siloxane‐ether‐urethane)‐acrylic hybrid emulsions

Tang¹,

Ma²,

Hou³

et al. 2017

J of Applied Polymer Sci

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Poly(siloxane-ether-urethane)-acrylic (PU-AC) hybrid emulsions were prepared by introducing different hydroxyethoxypropyl-terminated polydimethylsiloxane (PDMS) content into the acrylic-terminated poly(ether-urethane) backbone and then in situ copolymerizing with methyl methacrylate and butyl acrylate via emulsion process. The effects of PDMS on the particle size and viscoelastic behavior of the hybrid emulsions were investigated. Meanwhile, the hydrogen bonding, mechanical and thermal mechanical properties, water resistance, the surface gloss, and wettability of the resultant hybrid films were also studied. The results showed that all the hybrid emulsions showed shear-thinning behaviors, and the introduction of PDMS resulted in the formation of the hybrid emulsions with increased average particle size and decreased viscosity. The chemical bonds built between PU and AC yielded higher than 73% crosslinking fraction in all the hybrid materials, but this value decreased with increasing PDMS content because PDMS reduced the hydrogen bonding interactions and enhanced the phase separation. As a result, an increase in the PDMS content led to an increase in the elongation, water resistance, surface roughness, and water hydrophobic of the films, but the tensile strength, hardness, storage modulus, and glass transitions temperature decreased. It is suggested that introduction of PDMS can provide the hybrid materials with the improved flexibility, water resistance, and surface hydrophobicity, which has potential application value in the fouling-release coatings, biomaterials, and surface fishing.

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Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Preparation and properties of poly(siloxane‐ether‐urethane)‐acrylic hybrid emulsions

Tang¹,

Ma²,

Hou³

et al. 2017

J of Applied Polymer Sci

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“…The waterborne dispersions were cast on leveled tetrafluoroethyleneplates to allow them to dry at room temperature for 5 days and then at 60°C for 12 h. After demolding, the films were kept in a desiccator to avoid moisture …”

Section: Methodsmentioning

confidence: 85%

“…Meanwhile, the dosage of neutralization agent acetic acid can de reduced through the introduction of nonionic hydrophilic HAM monomer, which is also favorable to inhibit the ester hydrolysis. In addition, the compatibility and interaction between acrylic and alkyd can be enhanced with HAM due to hydrogen bonds interaction, since HAM is a kind of hydrophilic self‐crosslinking monomer which possesses amino and hydroxyl groups. To our best knowledge, the preparation and properties of cationic acrylic/alkyd hybrid emulsions have been seldom reported.…”

Section: Introductionmentioning

confidence: 99%

The effect of nonionic monomer HAM on properties of cationic surfactant‐free acrylic/alkyd hybrid emulsion

Shui

Shen

Fei

et al. 2014

J of Applied Polymer Sci

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A series of cationic acrylic/alkyd resin (CPAAR) hybrid emulsions was successfully prepared through surfactant-free emulsion polymerization, using methacryloxyethyltrimethyl ammonium chloride, methyl methacrylate, butyl acrylate and alkyd resin as reaction monomers. And nonionic N-hydroxymethyl acrylamide (HAM) of different content was simultaneously incorporated into the CPAAR backbone. The structure of CPAAR copolymer was characterized by Fourier transform infared spectrometer, and then the effect of HAM content on properties of CPAAR emulsions was studied by particle size analyzer, transmission electron microscopy and rheometer. In addition, thermal properties, water absorption and contact angle of CPAAR latex films were also investigated. The results showed that the CPAAR emulsions prepared with 4.9 wt % HAM displayed smallest average particle size of 92.2 nm. As HAM content increased from 0 to 19.6 wt %, the initial viscosity of the emulsions increased from 22.48 to 53 mPa.s. At the same time, the emulsions transferred from Newtonian fluid to pseudoplastic fluid, and a transition from viscous liquid to elastic liquid was also detected. Meanwhile, the degradation temperature at 5% weight loss increased by 30.59C. In addition, with increasing HAM content from 0 to 4.9 wt %, the water absorption and surface free energy of films increased by 4.42% and 5.02 mJ m 22 , respectively. However, the water absorption and surface free energy kept almost invariable with further increase in HAM content.

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“…This contact radius is 40 times larger than contact radii calculated by fitting the stochastic collision response to bulk electrolysis theory. The experimental difference may be attributed to the interfacial Gibbs free energy that governs the equilibrium contact angle (i.e., the degree of wetting), which is highly dependent on the properties of the liquid and solid phases (i.e., choice of immiscible solvents, concentration of salt or surfactant species, surface roughness, surface charge relative to the potential of zero charge) in addition to the forces which act on the droplet (i.e., buoyancy). − Thus, while the linear dependence of contact radius on droplet size holds within the experimentally investigated range (10–60 μm), deviations may arise at the nanodroplet scale.…”

mentioning

confidence: 99%

Visualizing Phase Boundaries with Electrogenerated Chemiluminescence

Glasscott

Dick

2020

J. Phys. Chem. Lett.

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Reactivity at phase boundaries is central to many areas of chemistry, from synthesis to heterogeneous catalysis. New tools are necessary to gain a more detailed understanding of processes occurring at these boundaries. We describe a series of experiments to visualize phase boundaries using electrogenerated chemiluminescence (ECL) on glassy carbon electrodes. By taking advantage of the solubilities of the ECL luminophore and the coreactant in different liquid phases, we demonstrate that the interface of various phases (i.e., the boundaries formed between a water microdroplet, 1,2-dichloroethane, and a glassy carbon electrode and the boundaries formed between an oxygen bubble, water, and a glassy carbon electrode) can be evaluated. We measured microdroplet contact radii, the three-phase boundary thickness, and growth dynamics of electrogenerated O 2 bubbles. These experimental tools and the fundamental knowledge they yield will find applications in biology, nanoscience, synthesis, and energy storage and conversion, where understanding phase boundary chemistry is essential.

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Effect of cationic monomer on properties of cationic fluorocarbon emulsifier-free emulsion

Cited by 7 publications

References 18 publications

Preparation and properties of poly(siloxane‐ether‐urethane)‐acrylic hybrid emulsions

Preparation and properties of poly(siloxane‐ether‐urethane)‐acrylic hybrid emulsions

The effect of nonionic monomer HAM on properties of cationic surfactant‐free acrylic/alkyd hybrid emulsion

Visualizing Phase Boundaries with Electrogenerated Chemiluminescence

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