One-pot synthesis of mushroom-shaped polymeric Janus particles by soap-free emulsion copolymerization

Wang, Bin; Li, Xuemei; He, Yufeng; Song, Pengfei; Wang, Rong‐Min

doi:10.1016/j.eurpolymj.2019.01.068

Cited by 15 publications

(14 citation statements)

References 44 publications

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“…[14][15][16] Among them, miniemulsion polymerization is an easy and high yield method for preparation of twophase Janus particles, which is mainly based on dispersing inorganic material in the organic phase or the monomer phase, and elastic stress driven by the entropy change in the swelling network can cause phase separation between polymer and inorganic phases during polymerization at elevated temperatures. [17][18][19] In addition, polymer/inorganic Janus latex particles with various morphologies can also be obtained by miniemulsion polymerization such as mushroom-like, 20 snowman-like, 15 dumbbell-like, 21 and rod-like. 22 These anisotropic particles are controllable in shape, chemistry, and polarity, which will make them have unique behavior and characteristics.…”

Section: Methodsmentioning

confidence: 99%

“…After forming the film, the Janus particles form a "twist-like" film surface, and there was a certain A survey of the published literature modeling of CMCs has been studied by a n ers. Processes that have been modeled CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltrat of alumina matrix in eight-harness satin has been studied numerically in Ref. [ proaches used in the above work general ing the flow of a high viscosity resin thr and modeling the chemical reactions and during processing.…”

Section: Methodsmentioning

confidence: 99%

“…At the same time, there was a strong A survey of the published literature shows that process modeling of CMCs has been studied by a number of researchers. Processes that have been modeled include RMI, 15,16 CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltration. 23 Impregnation of alumina matrix in eight-harness satin Nextel 610 fabric has been studied numerically in Ref.…”

Section: Structure and Properties Analysismentioning

confidence: 99%

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Janus composites particles: Prepared via cross‐linking driven one‐step miniemulsion polymerization and as film‐forming material

et al. 2021

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A kind of Janus polyacrylate (PA)/SiO2 composite latex particles named Janus C‐PA/SiO2 CLPs were prepared via cross‐linking driven in the course of miniemulsion process. The Janus particles with snowman shape were obtained under optimized cross‐linking agent content and silicon source content, and they were used to prepare the film. The properties and microstructure of this film were in comparison with the cross‐linked PA latex particles (C‐PA LPs) without SiO2 nanoparticles and irregular PA/SiO2 composites particles (PA/SiO2 CLPs) without a cross‐linker. The SEM‐EDS results demonstrated that the Si element distribution in the Janus C‐PA/SiO2 film was more uniform than conventional PA/SiO2 film. The AFM results indicated that the twist‐like film were distributed throughout the region, and the Janus C‐PA/SiO2 film had a roughness of 13.4nm. Additionally, the tensile strength and water resistance of the Janus C‐PA/SiO2 film were at least 142.65% and 91% higher than that of the other two films, and it also had the maximum thermal decomposition temperature of 403.14°C. Based on the research results, the relationship between the latex particle structure and film properties was obtained.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Structure and Properties Analysismentioning

confidence: 99%

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Janus composites particles: Prepared via cross‐linking driven one‐step miniemulsion polymerization and as film‐forming material

et al. 2021

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“…Then the antibacterial swollen polymer (100 μl) was mixed with bacterial suspension (10 6 CFU/ml in the MH broth on the 96-well culture plate. 28,29 The antibacterial swollen polymer containing bacterial cultured in a shaker at 110 rpm and 37 C for 24 h and the growth of bacterial colonies can be expressly identified by the eyes. According to the growth of bacteria colonies observed by eyes, the suitable concentration range of antibacterial swollen polymer was determined.…”

Section: Tests Of Antibacterial and Antifungal Activitymentioning

confidence: 99%

Reversible addition‐fragmentation chain transfer polymerization for fabrication of polymer cations‐adjustable porous materials with excellent antibacterial activity

Guo

Cao

Dai

et al. 2022

Polymers for Advanced Techs

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The reversible addition-fragmentation chain transfer polymerization (RAFT) is an effective method to control chain growth and regulate active centers in functional materials.Herein, a novel antibacterial material, polymer cations-adjustable porous materials (PCaPM), was successfully synthesized by RAFT and quaternization. First, using 2-(dodecylsulfanylthiocarbonylsulfanyl)-2-methylpropionic acid as the chain transfer agent of RAFT, methyl methacrylate and 2-(dimethylamino)ethyl methacrylate as comonomers, and ethylene dimethacrylate as crosslinking agent, the light-yellow crosslinked block copolymer (PM-PDE), was synthesized by RAFT polymerization. Second, a series of porous materials (PCaPM) were obtained by quaternization of PM-PDE with alternative alkyl halide and swelling effects in water. The composition and structure of PM-PDE and PCaPM were characterized by scanning electron microscope, energy dispersive spectrometer, Fourier transform infrared spectra, 1 H-NMR, Brunauer-Emmett-Teller, and X-ray photoelectron spectroscopy. Their antibacterial properties were also evaluated against Staphylococcus aureus, Escherichia coli, and Valsa mali. Remarkably, PCaPM, containing tertiary amine and possessing high porosity and large specific surface area, presented excellent antibacterial activity. Hence, the resultant PCaPM exhibited excellent antibacterial activity due to the quaternary ammonium salts groups, which has great prospects in application in medical treatment, agricultural antibiotic, emulator, and sewage treatment.

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“…Their unique properties made their potential applications possible in biomedicine, − solid surfactant, − catalyst, antifouling coating, − sewage treatment, biosensors, , etc. A variety of anisotropic microparticles with different asymmetrical structures have been synthesized, which include mushroom-like particles, , snowman-like particles, , rod particles, and disklike particles . These particles with adjustable shapes were prepared by innovative synthetic methods, which included but were not limited to phase separation, seeded emulsion polymerization, − surface-selective modification, , and microfluids. , …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Shape-Controllable Anisotropic Microparticles and “Walnut-like” Microparticles via Emulsion Interfacial Polymerization

Sun

Lin

et al. 2021

Langmuir

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Anisotropic microparticles have plenty of applications for their asymmetric structure and precisely modified surface. In our research, the uniform anisotropic microparticles with benzyl chloride group were synthesized successfully via emulsion interfacial polymerization. By varying the degree of cross-linking and the concentration of slightly hydrophilic monomer 4-vinyl benzyl chloride (VBC), several types of microparticles with different concavities and different shapes of microparticles (hemisphere, bowl-like, egg-like, etc.) were obtained. Nanoporous microparticles with a walnut-like heterostructure were achieved with modified hydrophilic seeds with the same strategy. The potential applications of shape-controllable fluorescent microparticles and surface modification of microparticles by thiol-click reaction were explored. The modified microparticles achieved in this study are very useful in labeling, tracing, protein separation, and other biomedical fields.

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One-pot synthesis of mushroom-shaped polymeric Janus particles by soap-free emulsion copolymerization

Cited by 15 publications

References 44 publications

Janus composites particles: Prepared via cross‐linking driven one‐step miniemulsion polymerization and as film‐forming material

Janus composites particles: Prepared via cross‐linking driven one‐step miniemulsion polymerization and as film‐forming material

Reversible addition‐fragmentation chain transfer polymerization for fabrication of polymer cations‐adjustable porous materials with excellent antibacterial activity

Synthesis of Shape-Controllable Anisotropic Microparticles and “Walnut-like” Microparticles via Emulsion Interfacial Polymerization

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