JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 11
·50043
·
IF 2.52
Haitao Meng,Tong Xu,Mingyuan Gao,Jie Bai,Chunping Li
Oil–water separation is an urgent issue due to the frequently occurred oil leakages and increasing discharge of oily wastewater. The pollutional and wastewater can not only damage the environment, but endanger human health. Owing to the small particle size of the oil contamination, it is still a challenge for the separation of oil–water emulsion. In this study, we developed a facile strategy to prepare a hydrophilic polyvinylpyrrolidone/polyacrylonitrile (PVP/PAN) nanofibrous membrane for oil–water mixture and emulsion separation. The lowest water contact angle on the membrane surface can achieve 16.7°, thus the membranes can effectively resist the oil contamination on them. Moreover, the membrane can efficiently separate oil–water mixtures and emulsion by gravity. In addition, it can separate oil–water mixtures in harsh conditions (pH = 1 and 14). Membranes prepared in this work would hold a great potential in the practical use of water treatment and environmental industry.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 13
·50127
·
IF 2.52
Yuanfu Tian,Yehua Yang,Jinqiang Tan,Dachuan Ding,Zhiyuan Song,Qian Tao,Xuan Zheng,Tao Hu,Xinghou Gong,Chonggang Wu
To enhance the compatibility of poly(ethylene terephthalate) (PET)/liquid crystalline polymer (LCP) composite, thereby mechanically strengthening the PET matrix, an optimally compatibilized composite of chain-extended and -carboxylated PET ionomer and poly(4-hydroxybenzoic acid– ran –6-hydroxy-2-naphthoic acid) (HBA–HNA) was successfully prepared. Upon PET carboxylated chain extension with pyromellitic dianhydride and subsequent ionization with Zn(OH) 2 , the compatibility of the composite was distinctly improved, as verified by the refined dispersed-phase morphology, increased number of refined HBA–HNA fibrils, reduced crystallinity, and improved complex viscosity. Compared with PET, the optimally compatibilized composite displayed a 70.1 and 148.7% increase in Young's modulus and tensile strength, respectively. Tentatively mechanistically, the interfacial interaction may change from weak hydrogen bonding to strong ion–dipole interactions due to the introduction of ionic groups, which remarkably boosts the interfacial compatibility, thereby achieving synergistic effects of the ionization and HBA–HNA inclusion to maximally strengthen PET. It seems that the synergistic ionization/LCP inclusion by a one-pot method establishes a promising preparation approach to commercial PET engineering resins.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 137
·期 11
·48473
·
IF 2.188
Desheng Qi,Jiayu Wang,Yugang Qi,Jing Wen,Shu Wei,Dajun Liu,Shuangjiang Yu
In this work, we present a new type of glutathione (GSH)-responsive polyurethane-based core‑shell nanogels (RS-CS-PUNGs) with hydrophilic methoxypolyethylene glycols (mPEG) shell, which was prepared by a one-pot synthetic method. The obtained RS-CS-PUNGs not only show a good size distribution with the hydrodynamic radii around of 20 nm, but also exhibit good stability in the organic solvent. The results demonstrate that GSH (10 mM) trigger the nanogel swelling and accelerate the loaded drug release in PBS (pH = 7.4). Although the RS-CS-PUNGs loaded with DOX show a slower cellular uptake behavior than the free doxorubicin (DOX), which is likely caused by the controlled drug release property of the nanocarrier, the enhanced cellular uptake fluorescence intensity of RS-CS-PUNGs loaded with DOX is still observed compared to the control group. Both MTT and CCK-8 assay indicate that although an obvious lower initial cytotoxicity is observed compared to free DOX at 24 h postincubation, the cytotoxicity of the RS-CS-PUNGs loaded with DOX is obvious enhanced after treated 72 h, which stayed at the similar level with free DOX. Attributing to the easy preparation progress and GSH-responsive property, RS-CS-PUNGs maybe hold the potential for further application in the field of drug delivery. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48473.
研究领域:
材料科学
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药学
·
生物医学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 139
·期 47
·e53180
·
IF 3.057
Yue Wang,Zhipeng Fang,Adeel Ahmed,Qiubo Wang,Hailin Cong,Youqing Shen,Bing Yu
In order to better realize the separation of chiral enantiomers and prevent chiral compounds with toxic side effects from causing harm to human beings, porous microspheres were modified to improve their chromatographic separation performance. In this paper, in order to verify the chromatographic performance of porous polymer microspheres, the precise and controllable synthesis of poly (styrene-divinylbenzene) (PS-DVB) microspheres was realized based on the two-step swelling method. Then, the porous PS-DVB microspheres were sulfonated with concentrated sulfuric acid. The sulfonated microspheres were grafted with diazo resin (DR), and then the 3,5-dichlorobenzene isocyanate modified β -cyclodextrin ( β -CD-DCIPI) was bonded to the sulfonated PS-DVB microspheres by the DR. Finally, the bond inversion occurred after UV irradiation. We have successfully solved the toxic effect of traditional coupling agents by using the unique photo-crosslinking reaction of DR. This novel and environmentally friendly chromatographic packing can be used to separate chiral compounds. The results showed that all of the eight compounds (chlorpheniramine; ibuprofen; benzoin; 2-phenylcyclohexanone; trans-stilbene oxide; Cobalt [III] acetylacetonate; Hesperetin; DL-Mandelic acid) can be separated. It is worth noting that the modified microspheres can achieve good separation of chiral compounds with the concentration of 1 mg/ml in 3 min.
研究领域:
分析化学
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材料科学
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药物化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2014
·Vol. 132
·期 1
·
IF 1.64
Xiaohai Bu,Yuming Zhou,Tao Zhang,Man He,Yongjuan Wang
Serine-based monosubstituted acetylene monomers were synthesized and polymerized with rhodium zwitterion catalyst in THF to afford optically active polyacetylene derivatives (LPA and DPA) and corresponding racemic polyacetylenes (RPA) with moderate molecular weights in good yields. All of the substituted polyacetylenes (SPA) were characterized by FT-IR, NMR, GPC, UV-Vis spectroscopy, circular dichroism (CD) spectroscopy, and TGA. LPA and DPA were soluble in common organic solvents and possessed single-handed helical conformation according to their intense Cotton effect and large specific rotations, while RPA presented random coiled polymer chain. The characterization results showed that helical structure of these SPAs was stabilized by intra- and intermolecular hydrogen bonding between the substituents which played a significant role in creating and maintaining the helix. Further, the infrared emissivity properties of them at wavelength of 8 to 14 μm were investigated at room temperature. Consequently, the LPA and DPA exhibited lower infrared emissivity values than RPA, which came down to 0.632 and 0.616. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41210.
研究领域:
有机化学
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材料科学
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光谱学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2016
·Vol. 133
·期 36
·
IF 1.866
Yangzhi Xie,He Huang
On the basis of 2-hydroxyl-2-methyl-1-phenylpropanone (HMPP) and poly(ethylene glycol) (PEG), we prepared amphiphilic macrophotoinitiators (HMPP–PEG–HMPP) by first reacting HMPP with isophorone diisocyanate and subsequently reacting it with PEGs with different chain lengths. Fourier transform infrared spectroscopy, high-performance liquid chromatography, and 1 H-NMR were used to confirm the structure of the amphiphilic macrophotoinitiators. Ultraviolet (UV) absorption spectra showed that the amphiphilic macrophotoinitiators had maximum absorption wavelengths that were similar to those of the low-molecular-weight photoinitiator HMPP. The photolysis rate of the amphiphilic macrophotoinitiators was slightly lower than that of HMPP, but the migration rate of the amphiphilic macrophotoinitiators from a UV-cured matrix was much lower compared to that of HMPP. Because of their amphiphilic nature, these macrophotoinitiators may play roles as both photoinitiators and emulsifiers, and they have been applied to the solution polymerization of water-soluble monomer acrylamide in water and the emulsion polymerization of methyl methacrylate. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43910.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 8
·47102
·
IF 1.901
B.-Q. Huang,H. Ding,Z.-L. Xu,Y.-J. Tang
In this work, the biomacromolecule, single-stranded deoxyribonucleic acid (ssDNA) was innovatively incorporated into the polyamide layer to tailor the permeate flux and antifouling performance of the nanofiltration (NF) membranes. With active amines groups, the ssDNA was as the aqueous phase monomers along with piperazine (PIP), and reacted with trimesoyl chloride on polyethersulfone substrate to fabricate thin-film composite (TFC) NF membranes. The NF membrane prepared under optimal ratio of ssDNA/PIP had a pure water permeability of 75.8 L m −2 h −1 (improved 58% compared to PIP NF membrane) and Na 2 SO 4 rejection of 98.0% at 6.0 bar. The rejections for different inorganic salts were the order: Na 2 SO 4 (98.0%) > MgSO 4 (89.2%) > MgCl 2 (72.8%) > NaCl (23.0%). Furthermore, the TFC NF membranes showed good antifouling performance in long-term running with 300 ppm bovine serum albumin and humic acid solution. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 47102.
研究领域:
材料科学
·
环境工程
·
生物化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 135
·期 7
·45876
·
IF 1.86
Bin Xiong,Na Wang,Yanfang Chen,Hong Peng
A novel magnetic adsorbent alginate/polyethyleneimine (ALG/PEI) n /MN was developed for removal of anionic dyes from aqueous solution in this study. (ALG/PEI) n /MN was prepared by depositing ALG/PEI multi-layers onto amine-modified Fe 3 O 4 microspheres through layer-by-layer method. The morphologies and structures of the adsorbent were characterized by scanning electron microscopy, X-ray diffractometer, and Fourier transform infrared spectrometer, respectively, and its performance in adsorption of anionic dye (acid orange 10, AO10) under varied experimental conditions were also investigated. The results revealed that the uptake capacity of AO10 by (ALG/PEI) n /MN increased with the number of coated (ALG/PEI) bilayer on the adsorbents, and the maximum adsorption capacity for AO10 by (ALG/PEI) 4 MN was 246.3 mg g −1 at 25 °C. The adsorption process was exothermic and well described by the pseudo-second order kinetic model and the Langmuir isothermal model. Moreover, (ALG/PEI) 4 /MN showed good reusability and excellent magnetic separability. All the results demonstrate that (ALG/PEI) 4 /MN is a potential recyclable adsorbent for removal of anionic dyes from wastewater. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 45876.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 139
·期 19
·52114
·
IF 3.057
Jianfei Yang,Ruoyun Wang,Xinwen Zhang,Fei Long,Tong Zhou,Lei Liu
Various strategies have been developed to fabricate superhydrophobic surfaces with the guidance of adding rough micro-nano structure and decreasing surface energy. However, it is still a challenge to prepare a superhydrophobic coating with multifunction, eco-friendliness, and broad applicability to substrates. The mussel-inspired polydopamine (PDA) possessing superior material-independent adhesion was considered as the promising candidate material. Herein, a hierarchical superhydrophobic PDA coating was fabricated on Cu substrate via a facile self-assembly method. Thanks to PDA's self-roughening and self-adhesive effects, the coating obtains sufficient surface roughness and good interface adhesion. The superhydrophobic coating exhibits excellent self-cleaning performance and enhanced corrosion resistance based on the surface wettability. Moreover, it possesses the additional functions of UV resistance and self-healing, inheriting from the PDA coating. PDA and the surface modifier are nontoxic, biodegradable, and eco-friendly. Our findings indicate that PDA can be used as an independent structural coating with multiple functions of corrosion protection, UV resistance, and superhydrophobic properties.
研究领域:
材料科学
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表面工程
·
环境科学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 134
·期 26
·
IF 1.86
Ren Liu,Yaxin Chen,Qiang Ma,Jing Luo,Wei Wei,Xiaoya Liu
A new compatibilizer [P(GMA- co -VCz) copolymer] containing carbazole moiety and reactive epoxide group, which can functionalize multiwalled carbon nanotubes (MWCNTs) for making superior epoxy composites, was prepared by a simple one-pot free radical polymerization. The designed compatibilizer could noncovalently functionalize multiwalled carbon nanotube (MWCNTs) via π-π interaction as evidenced from fluorescence, Raman, and FTIR spectra analysis, and efficiently disperse MWCNTs in organic solvents. TEM images suggest a good wrapping of P(GMA- co -VCz) on MWCNTs surface. P(GMA- co -VCz) functionalized MWCNTs were more homogeneously dispersed in epoxy matrix than the case without compatibilizer, indicating that the compatibilizer improves the compatibility between MWCNTs and epoxy resin. In addition, the presence of epoxide groups in compatibilizer could generate covalent bonds with the epoxy matrix and improve the interface interaction between MWCNTs and epoxy matrix. As a result, mechanical and electrical properties of the epoxy composites with compatibilizer were largely improved as compared with those of composites without compatibilizer. The addition of as little as 0.15 wt % of MWCNTs to epoxy matrix affords a great increase of 40% in storage modulus and 52.5% in elongation at break. Furthermore, a sharp decrease of almost 9 orders of magnitude in volume resistivity of epoxy composite is observed. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45022.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2011
·Vol. 121
·期 1
·352-358
·
IF 1.24
Yang Yu,Tingli Lu,Wen Zhao,Weiguang Sun,Tao Chen
A series of biodegradable PEG-containing polyanhydrides composed of sebacic acid, 1, 6-bis( p -carboxyphenoxy) hexane, and poly (ethylene glycol) (PEG) were used as matrix material for BSA-loaded microspheres. The effects of polymer composition on the microsphere size, entrapment efficiency, in vitro degradation, and in vitro protein release were studied. Microspheres in the size range of 0.8–10 μm were fabricated via a modified double emulsion method and were characterized using scanning electron microscopy. As the content or the molecular weight of PEG was increased in the copolymer, a proportional increase was found in the particle size and the efficiency of BSA entrapment. The in vitro degradation rate of particles could be controlled by varying the polymer composition, increasing as the PEG proportion increased. In vitro release studies of BSA from polyanhydride microspheres revealed that the increased amounts of PEG within microspheres could accelerate the release rate of protein. These studies indicate that the PEG-containing polyanhydrides hold potential for protein delivery applications. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
研究领域:
生物材料
·
药物递送
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 39
·
IF 1.768
Shu-Ting Liu,Ping-Ping Zhang,Kang-Kang Yan,Yuan-Hu Zhang,Ying Ye,Xue-Gang Chen
In this study, a novel -intercalated layered double hydroxide (Sb-LDH) was prepared by simultaneous recovering of LDH structures and intercalation of into LDH layers. The prepared Sb-LDH composites remain the hydrotalcite structure with layered geometry and show higher thermal property than that of LDH. When applied to poly(vinyl chloride) (PVC) composites, Sb-LDH showed limited thermal stability for PVC at the early stage of thermal and thermooxidative degradation processes. However, Sb-LDH could retard the thermal cracking of the carbonaceous conjugated polyene of PVC which may hinder further degradation, and the moderate amount of Sb-LDH (1, 2, and 5 wt %) in PVC resin can retard the process of decarbonation and enhance char formation. Sb-LDH also promoted the transparency of PVC but darkened the color. With the advantages of transparency promotion, high temperature resistance, and long-term stability, the prepared Sb-LDH is a potential thermal stabilizer for PVC resins. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42524.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
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