Investigation of the water barrier properties of graft copolymer latex films of acrylate and poly(dimethylsiloxane) macromonomers synthesized by RAFT miniemulsion polymerization

Jin, Linlin; Tian, Junkai; Li, Jiawei; Yan, Xiaofei; Qi, Dongming

doi:10.1016/j.eurpolymj.2022.111107

Cited by 6 publications

(6 citation statements)

References 41 publications

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“…In addition, XPS spectra of the film–air interface of FSi-PAcr/PB latex film is shown in Figure S6. The Si/C atomic ratio for the sample of FSi-PAcr/PB is 0.48, which is higher than that of p(MMA-co-BA)-g-PDMS graft copolymer latex film (0.43) in our recently reported work . This result suggests that the film–air interface of FSi-PAcr/PB latex film is fully covered via FSi component, resulting from the migration of fluorine and silicon segments during the film-forming process …”

Section: Resultscontrasting

confidence: 47%

“…The DSC curves frozen at 60 °C to −60 °C and thermal data of the dried hybrid latex films are shown in Figure S4 and Table S1, respectively. The wide peak of −40 °C to −20 °C in Figure S4 is attributed to the water freezing restriction by the cross-linked structure, known as the “bound water”, ,, and no corresponding peaks are found in the PAcr/PB and FSi-PAcr/PB curves. Meanwhile, the integral of the shaded area (Figure S4) is used to quantify the bound water content and is recorded in Table S1.…”

Section: Resultsmentioning

confidence: 99%

“…It is important to point out that in the sample of FSi-PAcr/PB, the lowest water vapor amount is 175.3 g/(m 2 •24 h), for which it is assumed that the non-cross-linked free FSi chain segments migrate both to the film−air and film−substrate interfaces, forming the barrier layers of water vapor. 47 In addition, XPS spectra of the film−air interface of FSi-PAcr/PB latex film is shown in Figure S6. The Si/C atomic ratio for the sample of FSi-PAcr/PB is 0.48, which is higher than that of p(MMA-co-BA)-g-PDMS graft copolymer latex film (0.43) in our recently reported work.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Film-Formation and Binder-Free Pigment Printing of Fluorosilicone-Modified Polyacrylate/Pigment Hybrid Latex: Effect of Cross-Linking Degree

Lin

Duan

et al. 2023

ACS Appl. Polym. Mater.

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Binder-free pigment dyeing/printing of textiles is a type of environmentally friendly and clean production technology that utilizes polymer/pigment hybrid latex. Although it has widespread use, the manner in which the nature of the hybrid latex influences the film formation and how systems can be designed to improve softness and air-permeability is still unclear. In this study, we synthesized a series of fluorosilicone-modified polyacrylate/pigment hybrid latexes to explore how cross-linking degree affects film-formation behavior and binder-free pigment printing performance on fabric, where the cross-linking structure is controlled by a silane coupling agent. Our results show that the cross-linking degree of the fluorosilicone-modified polyacrylate chain plays a vital role in chain diffusion, latex particle packing, and deformation. Further, it controls "skin" formation during the process of hybrid latex drying. The dried hybrid films not only have homogeneity and good barrier performance but also exhibit a soft state (low T g , − 28.3 °C) owing to the silicone chain segment and bound water with a plasticizing effect. Interestingly, our results show that the cross-linking degree of hybrid latex particles changes as a function of the morphology of the printed polyester (PET) fiber. Further, as a result of the improvement of the softness and airpermeability of the binder-free printed PET fabric, the surface of single yarns is uniformly wrapped by hybrid films with a high crosslinking degree. These insights allow for effective development of textile pigment printing technology controlled by the film-formation behavior of hybrid latex.

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Section: Resultscontrasting

confidence: 47%

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

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Film-Formation and Binder-Free Pigment Printing of Fluorosilicone-Modified Polyacrylate/Pigment Hybrid Latex: Effect of Cross-Linking Degree

Lin

Duan

et al. 2023

ACS Appl. Polym. Mater.

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“…52 The Si 2p XPS spectra are shown in Figure 3g−i, with the peaks at 105.4 eV (± 0.5 eV) and 102.5 eV (± 0.5 eV) attributed to Si−O. 53,54 The peaks located at 103.04 and 102.75 eV correspond to C−Si in the gPDMS and gSLIPS, respectively. 54 In addition, the atomic ratio and ratio of Si/O on the PS, gPDMS, and gSLIPS are shown in Table S1.…”

Section: Wettability Of Gslips Coatingsmentioning

confidence: 99%

Development of a Robust Slippery Liquid-Infused Porous Surface with Grafted Polymer Brushes and Its Anti-Biofouling Applications in Marine Engineering

Yue

Jiang

et al. 2023

ACS Appl. Polym. Mater.

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It is difficult for any marine engineering equipment to avoid the impact of biofouling. Especially, for engineering equipment made of titanium with a high biocompatibility, biofouling is a thorny problem. The outstanding antibiofouling properties of the slippery liquid-infused porous surfaces (SLIPSs) and the grafted polydimethylsiloxane (gPDMS) brush surfaces have attracted the attention of researchers. However, the durability and stability of the conventional SLIPSs and the wear resistance of gPDMS are insufficient and should be improved. In this work, PDMS molecule brushes were grafted onto a micro-arc oxidized porous surface infused with a lubricant (silicone oil) to develop a grafted SLIPS (gSLIPS) on a titanium alloy (TA2). The gPDMS molecule brushes have a stronger chemical affinity with silicone oil, which can preserve more lubricants to enhance the durability and stability of the SLIPS. Simultaneously, the infused lubricant in the micro-arc oxidized porous surface can improve the wear resistance of the grafted molecule brushes. Besides, the molecule brushes can further isolate the vulnerable titanium substrate from the biofouling microorganisms. By combining the advantages of the SLIPS and gPDMS, the gSLIPS has excellent stability, durability, and mechanical robustness. The gSLIPS possesses a better biofouling resistance than TA2 and gPDMS. For example, the coverage of Chlorella on the gSLIPS is 0.067% ± 0.022% after being immersed for 14 days, which reduces by 98.8 and 95.6% compared with those on TA2 and gPDMS, respectively. In addition, the gSLIPS also has excellent anti-protein property. Therefore, this method will help develop a more stable, durable, and mechanically robust super-slippery coating with excellent antibiofouling performance, which has great potential for the extensive titanium applications in marine engineering.

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“…However, adapting high-throughput synthetic and screening methods for the development of catalytic microgels remains challenging. − Most of the approaches in the field focus on successive synthesis and characterization of gels in a time- and labor-intensive manner. ,− ,− This workflow is caused by the need to first form emulsions or miniemulsions of oil in water by ultrasonication, followed by thermal- or light-initiated radical polymerization, purification of the obtained gels by extensive extraction or dialysis, and finally the characterization of physical properties and testing for desired functions.…”

Section: Introductionmentioning

confidence: 99%

Nanogel Catalysts for the Hydrolysis of Underivatized Disaccharides Identified by a Fast Screening Assay

Sharma

Striegler

2023

ACS Catal.

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Applying high-throughput synthetic and screening methods for the development of catalytic micro- and nanogels remains challenging due to the nature of the workflow. Typical procedures require the preparation of stable miniemulsions, followed by radical polymerization, purification of the obtained gels by extensive extraction or dialysis, and subsequent characterization of physical properties and examination of desired functions. To streamline the process, we altered the gel synthesis procedure and developed a screening protocol to identify gel compositions with the desired catalytic function. The assays identify five out of 50 synthesized gels from eight different cross-linkers with high potential to hydrolyze carbohydrates. A catalytic proficiency (k cat/K M × k non) of up to 1.4 × 106 and gel activity of 0.8 μmol h–1 mg–1 were observed placing the synthesized gels among the most proficient catalysts known for the hydrolysis of nonactivated glycosidic bonds.

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Investigation of the water barrier properties of graft copolymer latex films of acrylate and poly(dimethylsiloxane) macromonomers synthesized by RAFT miniemulsion polymerization

Cited by 6 publications

References 41 publications

Film-Formation and Binder-Free Pigment Printing of Fluorosilicone-Modified Polyacrylate/Pigment Hybrid Latex: Effect of Cross-Linking Degree

Film-Formation and Binder-Free Pigment Printing of Fluorosilicone-Modified Polyacrylate/Pigment Hybrid Latex: Effect of Cross-Linking Degree

Development of a Robust Slippery Liquid-Infused Porous Surface with Grafted Polymer Brushes and Its Anti-Biofouling Applications in Marine Engineering

Nanogel Catalysts for the Hydrolysis of Underivatized Disaccharides Identified by a Fast Screening Assay

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