Improving amphiphilic polypropylenes by grafting poly(vinylpyrrolidone) and poly(ethylene glycol) methacrylate segments on a polypropylene microporous membrane

Chen, Huirong; Ma, Wenzhong; Xia, Yong; Gu, Yi; Cao, Zheng; Li, Chunlin; Tao, Shengxi; Geng, Haoran; Tao, Guoliang; Matsuyama, Hideto

doi:10.1016/j.apsusc.2017.05.023

Cited by 20 publications

(3 citation statements)

References 29 publications

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“…However, i PP is the typical nonpolar material, it has poor compatibility with other polar materials (e.g., nylon, polyurethane, and polycarbonate), which limits the broad applications of i PP materials in packaging. Therefore, polypropylene modification has been developed for decades . As a green and environment‐friendly method, plasma technology has many unique advantages in polymer modification, like operation at room temperature, absence of catalyst and initiator, low pollution.…”

Section: Introductionmentioning

confidence: 99%

Preparation and rheological study of pentaerythritol triacrylate grafted onto polypropylene induced by air plasma

Meng

et al. 2019

J of Applied Polymer Sci

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The surface modification of isotactic polypropylene by dielectric barrier discharge of air plasma is studied. The air plasma induces melt grafting of pentaerythritol triacrylate onto polypropylene, which successfully introduces polar long-chain branching (LCB) structure into polymer bulk. The results of X-ray photoelectron spectroscopy show that C─O and C O oxygen-containing functional groups are formed on polypropylene surface, of which the functional groups contents can reach 24.4 and 12.0%, respectively. It is found that there is an optimum plasma treatment time of 4 min to obtain the high peroxides concentration of about 3.38-3.69 × 10 −7 mol cm −2 . The highest grafting degree of this plasma method is 1.79%, which achieves the same level as the chemical grafting method. The molecular structural change of the graft-modified polypropylene, in the form of LCB is investigated by shear rheology.

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Section: Introductionmentioning

confidence: 99%

Preparation and rheological study of pentaerythritol triacrylate grafted onto polypropylene induced by air plasma

Meng

et al. 2019

J of Applied Polymer Sci

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“…It is acknowledged that the fouling issue of membranes can be addressed by enhancing the membrane surface hydrophilicity. − In recent years, many attempts have been made to modify the membranes with hydrophilic materials, aiming to construct fouling-resistant membranes. Hydrophilic modifiers such as polyvinyl alcohol (PVA), poly(ethylene glycol) (PEG) derivatives, , poly( N -acryloyl glycinamide) (PNAGA), poly(amidoamine) (PAMAM) dendrimers, polyethyleneimine (PEI), and zwitterionic polymers − have been widely referred to. Among them, zwitterionic materials are preferred because they can retain a high amount of water molecules via electrostatic interactions and hydrogen bonding and thus exhibit stable and outstanding hydration ability. , Given their particular characteristics, zwitterionic polymers with well-defined frameworks were commonly synthesized via grafting chemistry and were used as raw materials for the membrane formation. − Guo et al reported the synthesis of a zwitterionic poly(aryl ether oxadiazole) (Z-PAEO) polymer via a two-step chemical reaction, and then the Z-PAEO ultrafiltration membrane with excellent antifouling property was prepared via a phase-separation technique.…”

Section: Introductionmentioning

confidence: 99%

“…8−10 In recent years, many attempts have been made to modify the membranes with hydrophilic materials, aiming to construct fouling-resistant membranes. Hydrophilic modifiers such as polyvinyl alcohol (PVA), 11 poly(ethylene glycol) (PEG) derivatives, 12,13 poly(N-acryloyl glycinamide) (PNAGA), 14 poly(amidoamine) (PAMAM) dendrimers, 15 polyethyleneimine (PEI), 16 and zwitterionic polymers 17−22 have been widely referred to. Among them, zwitterionic materials are preferred because they can retain a high amount of water molecules via electrostatic interactions and hydrogen bonding and thus exhibit stable and outstanding hydration ability.…”

Section: Introductionmentioning

confidence: 99%

Polyzwitterions Grafted onto Polyacrylonitrile Membranes by Thiol–Ene Click Chemistry for Oil/Water Separation

Shen

Liu

Xia

et al. 2020

Ind. Eng. Chem. Res.

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Zwitterionic poly(sulfobetaine methacrylate) (PSBMA) was successfully loaded onto a polyacrylonitrile membrane surface by thiol−ene click chemistry. The chemical composition and structure of zwitterionic membrane surfaces were analyzed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray (EDX) analysis. An increasing amount of sulfobetaine methacrylate (SBMA) led to a higher density of grafted PSBMA chains, which increased from 0 to 776.7 μg/cm 2 . As a result, the pores of the membranes were blocked, causing a decrease in the permeation flux of the membranes. The fabricated zwitterionic structure induced superhydrophilicity, underwater superoleophobicity, and oilfouling resistance to the membrane, as confirmed by contact angle measurements of pure water and oily compounds. The zwitterionic membrane was used for the separation of several oil-in-water emulsions, exhibiting outstanding separation efficiency with more than 99.4% oil removal. The antifouling ability of zwitterionic polyacrylonitrile (PAN) membranes was examined by multicycle filtration. It is found that the reversible and irreversible fouling have been suppressed, which is associated with the recycling of the zwitterionic membrane with a high flux recovery ratio. Generally, surface zwitterionicalization via thiol−ene click chemistry proved to be suitable for the preparation of antifouling polyacrylonitrile membranes for emulsion separation.

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Pyrrolidone and Caprolactam Functionalized Natural and Synthetic Polymers

Brush¹,

Musa²

2021

Handbook of Pyrrolidone and Caprolactam Based Materials

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This chapter provides a sampling of diverse synthetic approaches to pyrrolidone‐ and caprolactam‐functionalized natural and synthetic polymers. Enhancing the property profiles of major industrial polymers is a common motivation for such research endeavors. A significant portion of synthetic polymers are obtained by conventional free radical polymerization of vinyl monomers. Free radical polymerization termination can occur by combination or disproportionation reactions. The class of N‐vinylpyrrolidone polymers is utilized in a wide range of industrial applications. The class of polyvinylcaprolactam polymers are temperature‐responsive materials that have proven useful in many application areas. Polysaccharides are high molecular weight polymeric carbohydrate molecules that consist of long chains of monosaccharide units. Natural biopolymers are available from renewable marine and agricultural resources. Cellulose, chitin, starch, glycogen, and galactomannans are a few examples of common natural polysaccharides. Traditional derivatization of polysaccharides of high industrial relevance, such as cellulose, involves etherification and esterification processes.

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Improving amphiphilic polypropylenes by grafting poly(vinylpyrrolidone) and poly(ethylene glycol) methacrylate segments on a polypropylene microporous membrane

Cited by 20 publications

References 29 publications

Preparation and rheological study of pentaerythritol triacrylate grafted onto polypropylene induced by air plasma

Preparation and rheological study of pentaerythritol triacrylate grafted onto polypropylene induced by air plasma

Polyzwitterions Grafted onto Polyacrylonitrile Membranes by Thiol–Ene Click Chemistry for Oil/Water Separation

Pyrrolidone and Caprolactam Functionalized Natural and Synthetic Polymers

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