Donut-like hybrid latex comprising discrete thermoplastic lobe and thermosetting shell

Ng, Yeap-Hung; Tay, Siok-Wei; Hong, Liang

doi:10.1016/j.polymer.2016.06.043

Cited by 5 publications

(3 citation statements)

References 32 publications

(34 reference statements)

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“…The addition of methacryl-substituted POSS monomers into dispersion polymerization of polystyrene resulted in donut-like shape POSS containing latex particles. [28] The reversible addition-fragmentation chain transfer polymerization technique was used for fabricating POSS grafted nanocomposites, [29] molecular imprinted POSS containing microparticles, [15] and self-assembly aggregates. [30] The POSS containing random type aggregates and latex particles were also obtained by ringopening, [30][31][32] in-situ solution, [30] dispersion, [33] and emulsion [32] polymerization in batch-wise production systems.…”

Section: Introductionmentioning

confidence: 99%

“…[35] Ng et al investigated the shape character changes of PS latex by the addition of only a little amount of vinyl-monomer POSS. [28] The study of Castelverto et al demonstrated that POSS-methacrylate was first copolymerized with acrylic monomers by free radical mechanisms to obtain latex film structure in miniemulsion medium. [36] Bai et al, Tian et al, Wang et al, and Liao et al demonstrated that the core-shell structure of POSS hybrid particles were fabricated by using various homo and copolymer in emulsion, miniemulsion, or seed emulsion medium.…”

Section: Introductionmentioning

confidence: 99%

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Spherical shape poly(M‐POSS) micro/nano hybrid latex particles: One‐step synthesis and characterization

Kibar

2020

J of Applied Polymer Sci

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This research introduces for the first time a simple one‐step synthesis method based on emulsion polymerization to obtain spherical shape poly(Methacryl‐Polyoctahedral Silsesquioxanes) “poly(M‐POSS)” micro/nano hybrid latex particles through a free radical mechanism. The polymerization parameters such as the ultrasound source, the amount of surfactant sodium dodecyl sulfate (SDS) and the addition of the cosurfactants SDS/polyvinylpyrrolidone K30 (PVP‐K30), and SDS/polyvinyl alcohol (PVA) in emulsion medium were investigated. The morphological, chemical, thermal, and crystalline properties of poly(M‐POSS), as a function of these parameters, were analyzed by means of scanning electron microscope, Fourier‐transform infrared spectroscopy, thermogravimetric analysis, and X‐ray diffraction, respectively. The ultrasound source was found to have no significant effect on the fınal properties of the particles. However, the addition of a cosurfactant plays a major role in the distribution and coagulation of the latex particles. The addition of PVA as a cosurfactant significantly decreased the coalescence behavior of the latex particles, whereas the addition of PVP‐K30 caused Ostwald ripening effect in over‐micron size particles. As a result, the poly(M‐POSS) micro/nano particles were obtained in spherical shape in the size range between 0.2 and 20 μm. They possess both organic and inorganic parts with thermal resistance up to 400°C, which potentially serve as coating or filler additive materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spherical shape poly(M‐POSS) micro/nano hybrid latex particles: One‐step synthesis and characterization

Kibar

2020

J of Applied Polymer Sci

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“…As far as we know, the syntheses of PVDF Janus particles with bowl-like and popcorn-like structure via seeded emulsion polymerization following surface nucleation mechanism have not been reported. At present, bowl-like, , erythrocyte-like, or single-cavity − particles are synthesized mainly through changing the charging amount, the feeding method, or the addition times of the cross-linker divinylbenzene (DVB). In the present study, the hydrophilic comonomer 3-(trimethoxysilyl) propyl methacrylate (MPS) was used to replace DVB for the preparation of PVDF Janus particles because MPS can be hydrolyzed in an aqueous system to obtain −OH groups on the surface of the particles.…”

Section: Introductionmentioning

confidence: 99%

Asymmetrical Morphology and Performance of Composite Colloidal Particles Controlled via Hydrophilic Comonomer Addition Time in the Presence of Polyvinylidene Fluoride Latex

Wang

Yang

Yuan

et al. 2017

Ind. Eng. Chem. Res.

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Anisotropic composite latex particles with heteromorphous bowl-like and popcorn-like shapes were fabricated by a general approach: seeded emulsion polymerization. The morphologies of polyvinylidene fluoride@poly(styrene-co-butyl acrylate-co-3-trimethoxysilyl propyl methacrylate) composite particles [PVDF@P(St-co-BA-co-MPS)] could be efficiently controlled by varying the feeding time of hydrophilic MPS. The deformation mechanism of bowl-like particles was largely attributed to the diverse rigidities of the P(St-co-BA-co-MPS) phase from the inhomogeneous cross-linking density formed through changes in the MPS feeding time. During the polymerization, the PVDF crystallization behaviors demonstrated an obvious transformation from unconfined to confined crystallization. Additionally, the chemical properties and morphologies of the particles' surface greatly impacted the hydrophilic−hydrophobic character of the particle films. After the capping of the hydrophilic functional groups of the surface, the contact angle (165°) of the bowl-like particles was much higher than that of the popcorn-like particles (112°) because more caves exist on the former surface, exhibiting a superhydrophobicity.

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Interaction of photoswitchable nanoparticles with cellulosic materials for anticounterfeiting and authentication security documents

Abdollahi

Herizchi

Roghani‐Mamaqani

et al. 2020

Carbohydrate Polymers

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Donut-like hybrid latex comprising discrete thermoplastic lobe and thermosetting shell

Cited by 5 publications

References 32 publications

Spherical shape poly(M‐POSS) micro/nano hybrid latex particles: One‐step synthesis and characterization

Spherical shape poly(M‐POSS) micro/nano hybrid latex particles: One‐step synthesis and characterization

Asymmetrical Morphology and Performance of Composite Colloidal Particles Controlled via Hydrophilic Comonomer Addition Time in the Presence of Polyvinylidene Fluoride Latex

Interaction of photoswitchable nanoparticles with cellulosic materials for anticounterfeiting and authentication security documents

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