JOURNAL OF APPLIED POLYMER SCIENCE
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2020
·Vol. 137
·期 39
·49167
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IF 2.52
Jiaqi Shang,Song Mei,Danyu Zhao,Jianping Deng
Optically active hybrid particles consisting of chiral organic component and inorganic component integrate the individual advantages of the components in one entity. This article reports a new type of optically active hybrid particles constructed by helical substituted polyacetylene and octavinyl polyhedral oligomeric silsesquioxane (OvPOSS). The hybrid particles were prepared in a two-step process. First, helical substituted polyacetylene with pendent vinyl groups was synthesized and named as macromonomer (MM). Then, hybrid particles were prepared from MM and OvPOSS by free radical suspension polymerization, in which OvPOSS acted simultaneously as comonomer and crosslinking agent. OvPOSS and MM together constituted a crosslinked network and formed spherical, porous hybrid particles. The resulting hybrid particles exhibited the desired optical activity, according to circular dichroism spectroscopy measurement. As an organic/inorganic hybrid molecule itself, OvPOSS moderately improved the thermostability of the organic component and meanwhile increased the porosity of the hybrid particles. It also helped to tune the surface morphology of the hybrid particles. The present study provides a novel class of optically active hybrid particles, and the preparation strategy may further work as a versatile platform for developing novel chiral hybrid materials.
研究领域:
材料科学
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有机化学
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DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 17
·12872-12878
·
IF 3.84
Guannan Tang,Wenxiu Li,Xiaodong Cao,Hua Dong
In this study, multiple shapes like spherical, ellipsoidal, disk-like, and rod-like inorganic/organic hybrid particles are fabricated using droplet-based microfluidics. Instead of photo-polymerization, which is commonly used in previously reported studies, the diversity in particle configuration is realized via the fast hydrolysis of an organometallic compound. In comparison to inorganic/organic hybrid particles fabricated by directly incorporating inorganic components in the dispersed phase before droplet formation, our hybrid particles are synthesized in situ because the inorganic component is one of the hydrolysis products, which avoids the agglomeration or precipitation of inorganic components and thus ensures particle homogeneity. In this study, we demonstrate a new strategy by using hybrid particle containing poly (lactide-co-glycolide) (PLGA) and TiO2 as a model material, among which TiO2 is obtained from the hydrolysis of n-butyl titanate (TBT). The convoluted surface texture of PLGA/TiO2 particles can be attributed to either the interfacial instabilities of droplets induced by n-butanol as the other hydrolysis product, or the elastic-driven wrinkling of the solid film generated on PLGA/TBT droplet surfaces through TBT hydrolysis. Moreover, due to the presence of hyper-dispersed n-butanol caused by localized TBT hydrolysis in the PLGA matrix, a porous internal structure can be formed in the PLGA/TiO2 particle. We believe this strategy is versatile to fabricate numerous types of inorganic/organic hybrid particles, among which partial or all components can be synthesized through the quick hydrolysis of organometallic compounds.
研究领域:
材料科学
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化学工程
·
生物医学工程
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DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 64
·51631-51641
·
IF 3.84
Rui Wang,Xin Jiang,Ai He,Tao Xiang,Changsheng Zhao
The application of chitosan (CS) as adsorbent was limited by its poor acidic resistance, solubility in organic solvents and miscibility with synthetic polymers. In this study, an effective way was utilized to increase the amount of CS in hybrid particles together with good acid–alkali resistance and mechanical strength. CS was chemically modified and in situ cross-linked in polymer solutions to prepare hybrid particles with a semi-interpenetrating network (semi-IPN) structure. Polyethersulfone (PES) was chosen as a representative polymer matrix to prepare hybrid particles; and the PES/CS-derivative particles exhibited good adsorption capacity to the toxin bilirubin without procoagulant activity and adsorption capacity to Cu2+. Furthermore, the PES/CS-derivative hybrid particles exhibited selective adsorption to the anionic dye Congo Red (CR) and the environmental hormone bisphenol A (BPA) compared with other dyes or phenols. The results indicated the hybrid particles had versatile applications in blood purification and wastewater treatment.
研究领域:
材料科学
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生物医学工程
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环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2020
·
IF 4.65
Mengna Feng,Ming Chen,Jun Qiu,Meng He,Yumin Huang,Jing Lin
For organic film capacitors, the dielectric materials with high- k , flexible and high heat-resistance are desired. Herein, a kind of hybrid particles were fabricated via self-polymerization and crosslinking reaction, containing core-shell structured BaTiO 3 @polydopamine (BT@PDA) and MoS 2 @polydopamine (MoS 2 @PDA) interlinked with poly(ethylene imine) (PEI) to perserve better interfacial interaction and uniform dispersion in poly(arylene ether nitrile) (PEN) composites. The results suggest that the designed PEN-based composites demonstrate remarkable dielectric responses. The incorporation of hybrid particles endows the polymer composites with high relative dielectric constant and comparable low dielectric loss due to the construction of diffuse electrical double layer and more micro-capacitor networks in PEN-based composites. Particularly, the dielectric constant of composite loaded with 15 wt% hybrid particles is about 254% higher than that of PEN matrix at 1 kHz, while maintaining a relatively low dielectric loss (＜0.03). More importantly, the PEN-based composites maintain their dielectric constants from room temperature to 160 °C, thus exhibiting outstanding permittivity-temperature stability, which can better meet the requirements of high temperature applications. In conclusion, this is a feasible way to incorporate hybrid particles containing core-shell structured BT@PDA and MoS 2 @PDA into polymer matrix to design dielectric composites with excellent permittivity-temperature stability.
研究领域:
材料科学
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电气工程
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Ying Liu,Guozhu Tong,Jing Li,Yuzhu Jin,Maoli Yin,Xuehong Ren
As living standards continue to rise, the demand for advanced cotton textiles that fulfill enhanced functional requirements has grown significantly. Therefore, the development of multifunctional antibacterial/hydrophobic cotton fabrics holds considerable practical value. In this study, a zeolitic imidazolate framework (ZIF-8) based hybrid material, ZIF/SiO 2 -LDS (Long-chain derivative of silane), was synthesized via a co-precipitation method using silica, zinc nitrate hexahydrate, 3-aminopropyltriethoxysilane (KH-550), 2-methylimidazole and hexadecyltrimethylsilane (HDTMS). The resulting hybrid particles were then applied to cotton fabric through a simple padding process, achieving a loading amount of 2.348 %. This was followed by chlorination treatment with sodium hypochlorite to introduce antibacterial functionality. Hydrophobicity was assessed through contact angle measurements, achieving a maximum contact angle exceeding 145°. Antibacterial efficacy testing revealed complete inactivation of bacteria strains, achieving 100 % effectiveness. Study on the adhesion behavior of Staphylococcus aureus and Escherichia coli showed that HZSi/cot-Cl exhibits outstanding antibacterial adhesion resistance, effectively inhibiting bacterial attachment at concentrations up to 10 6 CFU/mL within one hour. The combined antibacterial and anti-adhesive properties significantly mitigate biofilm formation on the HZSi/cot-Cl surface. Notably, the fabric retained its anti-biofilm functionality even after 50 wash cycles. This research provides valuable insights into the development of advanced antibacterial and anti-adhesive treatments for cotton fabrics.
研究领域:
材料科学
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纳米技术
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纺织工程
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Meiling Tu,Jinkun Yu,Jun Wang,Xiao Shi,Zhixiang Fu,Sainan Hu,Mingqiang Zhong,Zhengdong Fei
TiO 2 /Bis[3-(trimethoxysilyl)propyl]amine (BTMSPA) hybrid particles with a coral morphology were prepared using a facile method and used for the removal of methyl orange (MO) dye from wastewater. The structure of the TiO 2 /BTMSPA particles and the adsorption mechanism for MO were analyzed. Meanwhile, the adsorption isotherms and kinetics of MO on the particles were also studied. During the preparation of the TiO 2 /BTMSPA hybrid adsorbent, some of the BTMSPA linked the TiO 2 particles to form a skeleton, while the remaining BTMSPA grew in situ on the TiO 2 surface into nanopapillae, forming a micro/nano-porous coral-like structure. The secondary amine group in BTMSPA acted as an adsorbent via a single molecular layer chemisorption mechanism. In a neutral environment, the decolorization rate of MO was 83.3% after 1 min, eventually reaching 91.2 %. The maximum adsorption capacity was determined to be 90.3 and 369.3 mg/g under neutral and acidic conditions, respectively. Furthermore, the hybrid particles also showed excellent performance for the removal of other anionic dyes and such as methyl blue and amaranth red, with a 100 % decolorization rate. The adsorbent had good universality and excellent regeneration performance after an alkaline washing step.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2021
·
IF 6.707
Qihuang Deng,Furong Zhou,Maolin Bo,Yefeng Feng,Yuehao Huang,Cheng Peng
High dielectric response and electric insulation are desired in high-energy-density polymer/ceramic composites. Low dielectric response is found in polymer composites with semiconductors. To balance a high dielectric constant and breakdown strength, in this work, the polymer-based composites with de novo synthesized V 2 C MXene-CuO hybrid-particles were fabricated. High dielectric response of composites was attributed to strong electron polarization at ceramic/ceramic heterojunction. High insulation was ascribed to fluorine-induced electron-trap effect. The first principle calculations verified the electron-transfer mechanism at V 2 C/CuO van der Waals heterojunctions. Compared with polymer/CuO binary composites, polymer/V 2 C-CuO ternary composites exhibited the improved comprehensive electric properties (remarkably improved dielectric response and slightly damaged insulation). Ternary composite with 10 wt% V 2 C-CuO showed a high dielectric constant of 89, low dielectric loss of 0.23, low conductivity of 6.8 × 10 −7 S m −1 at 100 Hz and high breakdown strength of 204 MV m −1 . This study might enable a facile preparation of cutting-edge nanocomposite dielectrics.
研究领域:
材料科学
·
电气工程
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产品关联
DOI
高影响因子
SURFACE REVIEW AND LETTERS
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2016
·
IF 0.435
RUIZHUO OUYANG,WEIWEI LI,YANG YANG,WANGYAO ZHANG,KAI FENG,TIANYU ZONG,YARUI AN,SHUANG ZHOU,YUQING MIAO
We presented here three carbon-nanomaterials-based modified glassy carbon electrodes (GCE) with Ni–Ag nanohybrid nanoparticles (NPs) deposited upon, including single-wall carbon nanotubes (SWCNTs), multi-wall carbon nanotubes (MWCNTs) and the mesoporous carbons (MPCs), and compared their morphology effects on both Ni–Ag deposition quality and electrocatalytic performances toward Glu oxidation. After being deposited with Ni–Ag NPs, a homogenous surface with very small Ni–Ag NPs was obtained for Ni–Ag/SWCNTs/GCE, while heterogeneous, coarse surfaces with obvious embedment with large Ni–Ag particles were observed for both Ni–Ag/MWCNTs/GCE and Ni–Ag/MPC/GCE. All three modified electrodes were well characterized in terms of surface morphology, electron transfer rate, hydrophilicity, interference resistance, stability, electrocatalytic behaviors as well as practicability in real samples, based on which Ni–Ag/SWCNTs/GCE was always proved to be more advantageous over other two composite electrodes. Such advantage of Ni–Ag/SWCNTs/GCE was attributed to its desirable surface morphology good for Ni–Ag deposition and exposure of as many active sites as possible to Glu oxidation, leading to the extraordinary electrocatalytic performance.
研究领域:
电化学
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材料科学
·
生物传感器
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Yihang Li,Guirong Hu,Qian Wang,Fuping Dong,Yuzhu Xiong
Phase change materials (PCMs) are considered to be promising energy storage materials, but the advanced utilization of PCMs is limited by liquid phase leakage, low thermal conductivity and poor solar-to-thermal conversion ability. Herein, inspired by the structure of nacre, we used boron nitride nanosheets (BNNs) coated with polydopamine (PDA)-modified tetrapod zinc oxide (T-ZnO) to prepare multilayered BNNs/PDA@T-ZnO hybridized particles (BPT), and then employed them to reinforce the PVA aerogel to obtain a BPT/PVA skeleton. Due to the robust support of T-ZnO substrate, BPT/PVA skeleton has ordered porous structure and excellent mechanical properties, with compressive strength up to 15.7 MPa. The prepared composite PCMs of polyethylene glycol (PEG) supported by BPT/PVA skeleton (PVA/BPTs/PEG) have good heat storage capacity, thermal conductivity and solar-to-thermal conversion efficiency. The rigid BPT/PVA skeleton endows PVA/BPTs/PEG with good shape stability and durability, whereas the melting enthalpy and crystallinity of PVA/BPT/PEG reach 139.0 J·g −1 and 99.6 %, respectively. The intermediate dopamine layer of BPT acted as an adhesive for BNNs and T-ZnO and excellent solar-to-thermal conversion medium, which cause the PVA/BPTs/PEG composites to have excellent solar-to-thermal conversion efficiency (95.2 %). Meanwhile, the thermal conductivity of PVA/BPTs/PEG reach 1.34 W·m −1 ·K −1 , benefiting from the continuous 3D heat transfer path provided by the stacked BPT particles. Considering the outstanding overall performance, the prepared composite PCMs have the potential to be suitable for the application of high efficiency thermal management and solar energy utilization.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）