MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2021
·Vol. 222
·期 13
·2000365
·
IF 2.527
Qiong Guo,Jiangtao Liu,Hong Yang,Zhongli Lei
Stimuli-responsive chemical bonds have already been widely applied to construct nanomaterials, however, such materials rarely have great amounts of responsive groups and stable structures. Herein, a triple-stimuli-responsive interface-cross-linked (ICL) copolymer which is synthesized via Cu(I)-catalyzed azide-alkyne cycloaddition click polymerization and atom transfer radical polymerization (ATRP), is reported. N, N′-bis(bromoacetyl) cystamine is used for intramolecular crosslinking of the linear polymer chains. The ο-nitrobenzyl groups, peroxalate ester bonds, disulfide bonds, and triazole units are regularly and repeatedly arranged in the hydrophobic blocks, therefore enabling the polymer a large amount of responsive chemical bonds. The polymer self-assembles into spherical micelles with uniform size in deionized water. Using hydrophobic dye Nile red (NR) as a model drug to evaluate the effect of release in vitro, the multi-stimuli-sensitive release properties of the ICL micelles are investigated in detail by means of UV–vis, transmission electron microscopy, dynamic light scattering, and fluorescence spectrophotometry, and the results indicate the ICL micelles can respond to the photo, oxidation, or reduction responsiveness either independently or synergistically. Furthermore, the cross-linked structure enhances the stability of the micelles and rarely impacts the total amount of drug release. The research may have applications in the field of drug delivery systems for cancer therapy.
研究领域:
材料科学
·
药学
·
生物医学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2017
·
IF 6.065
Cuijing Liu,Liang Cheng,Yifan Zhao,Liping Zhu
The dye wastewater is one of the most difficult industrial wastewaters to treat. It keeps a big challenge to realize fast removal of dyes from water by membrane filtration due to the trade-off between separation selectivity and permeation flux for ultrafiltration or nanofiltration (NF) process. Here we report novel composite porous membranes which can remove anionic dyes from water by ultrafast permeating adsorption. A crosslinked polyethyleneimine (PEI) polymer with strong adsorption ability was incorporated onto a nylon microfiltration membrane by the interfacial amidation reaction between PEI and trimesoyl chloride. The obtained composite membranes were used for the decolorization of dye solution by permeation mode. It was shown that the composite membranes were able to nearly completely remove anionic dyes in acidic conditions with high permeation fluxes. In an optimized case, the adsorption capacity of Sunset Yellow for the composite membranes reached 0.7 mg/cm 2 with a high flux of 85 L/m 2 h under a ultralow pressure of 0.01 bar. This flux was far much higher than that of NF membranes, about 10 L/m 2 h bar. The pH-dependent electrostatic interaction between PEI and anionic dyes was responsible for the rapid dye removal. The adsorption saturated membranes could be effectively regenerated by a simple alkaline washing.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2021
·Vol. 307
·期 1
·2100631
·
IF 4.367
Jinyun Wang,Tong Su,Wei Zhuang,Cheng Shi,Min Gao,Xiao Wu,Cong Lin,Tengfei Lin
The properties of polymer blends strongly depend on their microstructure. Thus, tuning the phase structure and improving the interfacial interaction of blends are relatively crucial. Inspired by the breaking and reformation of dynamic covalent bonds in vitrimers, these special bonds are introduced into the phase interface of polymer blends in this work. Through reactive blending of epoxidized natural rubber (ENR), polylactic acid (PLA) and additives, polymer blends with dynamic interfacial cross-linking are fabricated. The prepared blends with intensive interfacial interactions display excellent recycling capacity. Strikingly, after etching the dissolvable substances with a solvent, the porous phase structure of original polymer blends changes to a fiber-like phase structure of the third recycled blends, entirely distinct from most reported phase structures in polymer blends. In addition, the composites show great enhancements in mechanical properties during recycling. This work provides an effective method to tune the phase structure and improve the interfacial interaction of polymer blends.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Jiatai Gu,Maorong Zheng,Tianxue Zhu,Ni Wang,Liming Wang,Jianyong Yu,Xiaohong Qin
Developing hydrophobic surfaces for flexible fibrous membranes has attracted tremendous attention for their potential applications in waterproofing, antifouling, and drag reduction. However, conventional methods, such as hydrothermal, coating, and phase separation, often involve complex preparation processes, plugging of porous structures, and heavy use of organic solvents. Herein, a facile and eco-friendly assembly strategy is proposed for fabricating superior hydrophobic surfaces on fibrous membranes. Firstly, a hierarchical rough structure was created on the fiber surface using titanium dioxide nanoparticles as building blocks by a one-pot procedure based on electrostatic complexation and interfacial crosslinking. The procedure is performed in aqueous media, at low temperature (50℃) and very fast (∼20 min). Subsequently, a waterborne emulsion was developed by low-surface-energy organosilicon self-assembly in aqueous media, which was adopted to coat fiber substrate for surface hydrophobization. The amount of organosilicon is reduced by >90 % of that required in the traditional coating. Consequently, the resultant fibrous membranes exhibit a robust hydrophobic surface with UV-resistant, wash durability, photocatalytic self-cleaning effect, and excellent breathable properties. Besides, this general waterborne hydrophobic coating strategy could be applied to various hydrophilic substrates, including fabrics, aerogels, and sponges. This work provides a novel method to design and fabricate multi-functional hydrophobic surfaces.
研究领域:
材料科学
·
表面工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Guipeng Quan,Yunhuan Wu,Bao Gong,Xudong Liu,Yujie Liu,Wenhua Wang,Yuhui Ao,Linghan Xiao,Yujing Liu
Inspired by organic–inorganic soft and hard components found in mollusk shells, this study utilized phytic acid (PA) and MXene (Ti 3 C 2 ) to create “soft-hard” structure on the surface of carbon fiber (CF) through the bio-interfacial cross-linking reinforcement (BICR) strategy. This strategy not only increased the chemical reaction activity on the fibre surface, but also enlarged the interphase area of the fibres, which facilitated the formation of a strong physical riveting interaction among the fibres and substrate. Compared with the untreated CF composites, the flexural strength, flexural modulus, interlaminar shear strength (ILSS), tensile strength and interfacial shear strength (IFSS) of the CF/PEI/PA/MXene composites were increased by 51.4%, 62.5%, 63.0%, 74.9%, and 45.8%, respectively. These positive results were attributed to the large number of reactive functional groups on the PA myo-inositol ring, which increased the chemical reactivity of the fiber surface. Additionally, the MXene assembled on the fibre surface enhanced the adhesion and mechanical interlocking between the fibre and resin. This work provides an advanced route to fabricate CF composites with excellent mechanical properties.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zhiling Luo,Hongyu Huang,Zhipeng Wu,Jiaqi Liu,Xuhui Ye,Huamin Chen,Luzhuo Chen
Energy storage textiles represent an innovative form of flexible energy storage devices, fully leveraging the wearing advantages of textiles and demonstrating unique benefits in wearable electronics. However, due to the inherent porous and insulating characteristics of textiles, textiles electrodes suffer from intricate preparation process and unsatisfying performance. Additionally, the electrolytes face challenges such as evaporation loss and leakage. To address these issues, this work presents an innovative strategy for fabricating energy storage garments based on the interfacial crosslinking of hydrogel electrolyte. Garments and electrodes were first assembled with polyvinyl alcohol (PVA) solution. The energy storage textiles are prepared by constructing textile/hydrogel/electrode interfaces during the freezing-thawing crosslinking process with enhanced strength. This strategy avoids the complex step of fabricating textile electrodes. Additionally, the hydrogel is hygroscopic and can replenish moisture from the air, enabling the long-term operation of devices without encapsulation. Importantly, this strategy is versatile and compatible with various textiles and available electrodes. A variety of supercapacitors (SCs) have been successfully integrated into commercial garments, including large-sized devices (5 × 5 cm 2 , 11.8 F) for wearable applications. This innovative strategy is expected to provide new insights for the development of energy storage textiles.
研究领域:
材料科学
·
能源技术
·
纺织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2017
·
IF 4.747
Enmin Chen,Lianqi Cao,David Julian McClements,Shilin Liu,Bin Li,Yan Li
The impact of incorporating different levels of cinnamaldehyde (CA) into the oil phase used to prepare whey protein isolate (WPI)-stabilized nanoemulsions was investigated. Stable nanoemulsions could not be formed by pure CA, which was attributed to gravitational separation, but they could be formed from mixtures of CA and triglycerides. The mean particle diameter produced by homogenization decreased with increasing CA, which was attributed to the reduction of oil phase interfacial tension and viscosity. CA enhanced the physical stability of the nanoemulsions to salt addition (0–500 mM) and thermal processing (30–90 °C), but could not prevent droplet flocculation near the protein's isoelectric point (around pH 5). SDS-PAGE and surface load measurements indicated that more protein accumulated at the droplet surfaces in the presence of CA, which was attributed to interfacial crosslinking. CA may therefore be a useful means of modulating the physicochemical properties of protein-stabilized nanoemulsions.
研究领域:
食品科学
·
胶体与界面化学
·
蛋白质功能特性
·
递送系统
·
食品纳米技术
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2009
·
IF 3.247
Yun-Feng Yang,Ling-Shu Wan,Zhi-Kang Xu
To endow microporous polypropylene membrane (MPPM) with durable surface hydrophilicity, a facile interfacial crosslinking approach was developed, combined with a pretreatment by dielectric barrier discharge (DBD) plasma at atmospheric pressure. The commercially available polyethylenimine (PEI) was coated on MPPM firstly and was sequentially crosslinked with p -xylylene dichloride and quaternized with iodomethane to form a permanently positively charged layer. The physical and chemical changes of the membrane surface were characterized by tensile test, FT-IR/ATR, XPS , and FESEM . The surface hydrophilicity of the modified MPPMs was evaluated by water contact angle and pure water flux measurements. Besides, the influence of surface charge on protein filtration involving flux decline and protein transmission was also investigated in detail. It is found that the optimal time of DBD plasma treatment is ∼30 s. Mass gain for the MPPMs during the interfacial crosslinking can be controlled conveniently by adjusting the PEI concentration from 1.0 to 15 g/L. The surface hydrophilicity can be significantly enhanced and is durable, characterized by the sharp decrease of water contact angle, the double increase of pure water flux and the stability test. The results of protein filtration suggest that the obtained highly hydrophilic and charged membrane surface is resistant to protein fouling. Furthermore, almost 100% of protein transmission indicates that the microfiltration characteristic of MPPMs is unchanged.
研究领域:
材料科学
·
膜技术
·
表面改性
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Xu Han,Junxia Guo,Shichao Ma,Bojiang Li,Ye Sun,Chunlin Li,Ruiguang Li,Chengjie Li
It is still a great challenge to develop ideal elastic thermal interface materials with high thermal conductivity and excellent mechanical properties for the demand of efficient thermal management materials. Herein, mechanically robust, recyclable, and highly thermally conductive eEPDM/DA@BNMS/ZITA composites were prepared through a dynamic covalent reaction between epoxidized ethylene–propylene–diene monomer (eEPDM) and carboxylated boron nitride microspheres (DA@BNMS), and zinc itaconate (ZITA) was used as a reinforcing filler. The constructed dynamic β-hydroxyl ester bond between eEPDM and DA@BNMS resulted in the enhancement of interfacial interaction, which could achieve transesterification at the interface and endow the composite with a reinforcing effect and dynamic recycling ability, and the reclaimed sample still maintained the higher mechanical properties after the third recycling. ZITA was in situ formed through a neutralization reaction between ITA and ZnO in an eEPDM/DA@BNMS/ZITA composite system, and multiple interfacial cross-linking networks were constructed, which significantly enhanced the mechanical properties, reaching a maximum as high as 14.59 MPa. The thermal conductivity of eEPDM/DA@BNMS reached 1.7 W/mK in terms of the formation of effective thermally conductive paths due to enhanced interfacial interactions, while the thermal conductivity of eEPDM/DA@BNMS/ZITA slightly decreased due to an increase of the interfacial thermal resistance after the incorporation of ZITA. Such a facile strategy shows a promising prospect in preparing mechanically robust and highly thermally conductive rubber composites as ideal candidates in thermal management fields.
研究领域:
材料科学
·
热管理技术
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Xiwei Ji,Qi Wang,Meimei Yu,Mohammed Kamal Hadi,Ying Liu,Lei Zhao,Fen Ran
Multifunctionality of all-in-one energy storage devices with the properties involving flexibility, interface stability, and wearability are urgently needed for portable electronic equipment. Here, we report a facile method based on interfacial cross-linking for preparing all-in-one energy storage devices, where the same polymer substrate is used in both electrode and electrolyte, while the electrolyte as the cross-linking agent to obtain more stable interface between the components of the all-in-one energy storage devices. This novel strategy endows the storage device small intrinsic impedance effect (R S =1.82 Ω) and mechanical stability; and more importantly it enables the supercapacitors to be used as public module to achieve arbitrary, designable, and multi-dimensional integration for the adaptation with complex power supply systems. The strategy is also successfully extended to aqueous Zn-MnO 2 battery. Overall, the strategy provides a universal and simple path for the integrated design of the all-in-one energy storage device as a flexible and switchable power source.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Shilu Luo,Qi Li,Yajun Xue,Bing Zhou,Yuezhan Feng,Chuntai Liu
Ultrathin MXene composite films , with their flexibility, metal-level conductivity, and multifunction compatibility, are an ideal choice for electromagnetic interference (EMI) shielding materials in future developments. Nonetheless, the dilemma between electrical conductivity and robustness in these composite films remains a challenge. Herein, an ammonium polyphosphate (APP) assisted interfacial multiple cross-linking strategy, achieved via simple solution blending and filtration, was employed to reinforce and toughen the “brick–mortar” layered MXene/bacterial cellulose (MBCA) films without compromising their conductivity and EMI shielding ability. The introduction of a small amount of APP leads to multiple interfacial interactions between MXene and bacterial cellulose, resulting in significant enhancements in mechanical strength (360.8 MPa), Young's modulus (2.8 GPa), fracture strain (17.3%), and toughness (34.1 MJ/m 3 ). Concurrently, the MBCA film displayed satisfactory conductivity values of 306.7 S/cm and an EMI SE value of 41 dB upon optimizing the MXene content. Additionally, the MBCA film demonstrated a consistent, rapid-response photothermal conversion capability, achieving a photothermal conversion temperature of 97 °C under a light intensity of 200 mW/m 2 . Consequently, this tough and multifunctional EMI shielding film holds substantial promise for protecting electronic equipment.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2016
·
IF 5.557
Yunze Wang,Haibo Lin,Zhu Xiong,Ziyang Wu,Yi Wang,Lingchao Xiang,Aiguo Wu,Fu Liu
An up-scaling strategy to produce multi-functional PVDF membrane is highly desirable for both academia and industries. It is now reported that a novel silane-based interfacial crosslinking technique was developed to endow PVDF membrane with versatile superwettability, excellent protein desorption and antibacterial properties respectively. Prepolymers were first synthesized through the free radical copolymerization between crosslinker triethoxyvinylsilane (VTES) and N-Vinyl-2-pyrrolidone (NVP), oligo(ethylene)glycol methacrylate (OEGMA), dimethyl aminopropyl methacrylamide (DMAPMA). And then the superhydrophobic PVDF membrane was facilely modified by silane-based interfacial crosslinking of the corresponding prepolymer. PVP-VTES crosslinked PVDF membrane showed reversible separation performance for both oil-in-water and water-in-oil emulsions. POEGMA-VTES crosslinked PVDF membrane exhibited excellent BSA desorption. The halo zone test verified the good elimination to Escherichiacoli (E. coli) for the PDMAPMA-VTES crosslinked PVDF membrane. FTIR, XPS , TGA , SEM and laser scanning confocal microscope were utilized to investigate the chemistry and morphology of functional layer. All results demonstrate that versatile PVDF membranes with multiple functions can be facilely designed by the efficient interfacial crosslinking strategy.
研究领域:
材料科学
·
环境工程
·
生物医学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）