|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The oldest basement rock in the Yangtze Craton revealed by zircon U-Pb age and Hf isotope composition显示文摘Here we report an integrated study of zircon U-Pb age and Hf isotope composition for a gneiss sample from the Kongling terrain in the Yangtze Craton. CL imaging reveals that most zircons are magmatic, and a few of them have thin metamorphic rims. The magmatic zircons gave a weighted mean U-Pb age of 3218±13 Ma, indicating the gneiss is the oldest basement rock in the Yangtze Craton found to date. They have εHf(t) value of -2.33±0.51,and two-stage Hf model age of 3679±49 Ma,indicating that the gneiss was derived from partial melting of >3.6 Ga crustal rock. The metamorphic rims yielded an age of 2732±16 Ma, implying that the metamorphic event occurred in the Neoarchean era, which may be also a major tectono-thermal event in the Yangtze Craton. | JIAO WenFang WU YuanBao YANG SaiHong PENG Min WANG Jing | 2009 | Science China Earth Sciences2009，52，9： | 57 |
| 2 | Xinfeng capsule improves pulmonary function in ankylosing spondylitis patients via NF-κB-iNOS-NO signaling pathway显示文摘OBJECTIVE: To study changes in the nuclear factor-κB p65(NF-κB p65)-inducible nitric oxide synthase(i NOS)-nitric oxide(NO) signaling pathway and the effects of Xinfeng capsules(XFC) in patients with ankylosing spondylitis(AS)METHODS: One hundred twenty patients with AS were randomly divided into an XFC group and a Salazopyrin group. Sixty health subjects were included as a normal control group. In the two treatment groups, pulmonary functional parameters,forced vital capacity(FVC), forced expiratory volume in 1 second(FEV1), maximal voluntary ventilation(MVV), peak expiratory flow(PEF), forced expiratory flow at 25% of forced vital capacity(FEF25),forced expiratory flow at 50% of forced vital capacity(FEF50), and forced expiratory flow at 75% of forced vital capacity(FEF75) were determined. Enzyme linked immunosorbent assays were used for detection of the serum oxidative stress indexes,NF-κB p65, i NOS, NO, reactive oxygen species(ROS), reactive nitrogen species(RNS), malondialdehyde(MDA), superoxide dismutase(SOD), catalase(CAT), total antioxidative capacity(TAOC) and interleukin-4(IL-4), IL-10, IL-1β, and tumor necrosis factor-α(TNF-α) contents. Westergren's method was used for determination of erythrocyte sedimentation rate(ESR). High-sensitivity C-reactive protein(Hs-CRP) was detected with a 7060 full-automatic biochemical analyzer(Hitachi, Japan).RESULTS: The clinical therapeutic effect in the XFC group was significantly superior to that in the Salazopyrin group(P<0.01). Compared with the normal control group, FEV1, MVV, PEF, FEF50, FEF75, SOD, CAT,TAOC, IL-4, IL-10 were significantly lower, and NF-κB p65, i NOS, NO, ROS, RNS, MDA, IL-1β, TNF-α, ESR,and Hs-CRP significantly higher in patients with AS(P<0.01 or P<0.05). Compared with before treatment, FEV1, MVV, PEF, FEF50, FEF75, SOD, CAT, TAOC,IL-4, and IL-10 were significantly increased, and NF-κB p65, i NOS, NO, ROS, RNS, MDA, IL-1β, TNF-α,ESR, CRP, visual analog scales(VAS), Bath ankylosing spondylitis disease active index, Bath ankylosing spondylitis functional index, and Bath ankylosing spondylitis global index significantly decreased in the two treatment groups after treatment(P<0.01 or P<0.05), with significant differences between the XFC and Salazopyrin groups(P<0.01 or P<0.05). Spearman correlation analysis indicated that FEV1, MVV, PEF, FEF50, and FEF75 were positively correlated with SOD, CAT, TAOC, IL-4, and IL-10, and were negatively correlated with NF-κB p65, i NOS,NO, ROS, RNS, MDA, IL-1β, TNF-α, ESR, and CRP.CONCLUSION: Patients with AS have local pathologic changes in the spinal cord and other joints.They also have decreased pulmonary function,which is negatively correlated with the NF-κB-i NOS-NO signaling pathway, oxidative indexes, and inflammatory factors. XFC improves rigidity and pain in spinal joints and other symptoms, laboratory indexes, and pulmonary function. The mechanism is possibly related to inhibition of the NF-κB-i NOS-NO signaling pathway. | Jian Liu Yajun Qi Li Zheng Yunxiang Cao Lei Wan Wenfang Ye Li Fang | 2014 | Journal of Traditional Chinese Medicine2014，34，6： | 24 |
| 3 | Study on BaTiO_3 films prepared by AC power microarc oxidation显示文摘BaTiO3 films were prepared by microarc oxidation (MAO) with an in-house built alternating current (AC) power supply in Ba(OH)2 solution in this study. The surface morphology, combinability with the substrate and phase composition of the films were investigated by XRD, SEM and TEM. The BaTiO3 films were annealed at a temperature range of 900 to 1200℃ and phase compositions were tested thereafter. The results showed that the BaTiO3 films were mainly composed of the primitive hexagonal phase with relatively small amount of tetragonal and amorphous phases. Moreover, the amount of amorphous phase decreased with the time of annealing. The transformation of BaTiO3 from hexagonal structure to tetragonal stucture became obvious until the annealing temperature reached 1200℃. The film consisted mainly of BaTiO3 tetragonal structure with ferroelectric property. The influence of annealing on surface morphology and mechanism of phase transformation of the films were also discussed. | HUANG WenBo, LI WenFang & HAN Bing College of Material Science and Engineering, South China University of Technology, Guangzhou 510640, China | 2009 | Science China(Technological Sciences)2009，52，8： | 11 |
| 4 | Paleoproterozoic mafic dyke from Kongling terrain in the Yangtze Craton and its implication显示文摘Mafic dyke is a sign of regional extension, and thus has important tectonic significance. A great amount of mafic dykes occur in the Kongling terrain of the Yangtze Craton, which have great bearing on the early evolution of the Yangtze Craton. Their ages, however, have not been well constrained. In this paper we report an integrated study of zircon U-Pb age and Hf isotope compositions for a mafic dyke in the Kongling terrain. The zircons yielded a weighted mean 207Pb/206Pb age of 1852±11Ma, which represents its intrusion age. They have εHf(t) values of -6.3 to 0.5, with a weighted mean of -3.06±0.88, suggesting that the mafic dyke came from metasomatic mantle. The results indicate that the Yangtze Block had transformed into post-collisional extensional regime at ca. 1850 Ma. In the same period, the Yangtze Craton shows enough rigidity to produce brittle rupture, and thus has the characteristics of a craton. | PENG Min WU YuanBao WANG Jing JIAO WenFang LIU XiaoChi YANG SaiHong | 2009 | Chinese Science Bulletin2009，54，6： | 10 |
| 5 | Investigation of the Ce-Mn conversion coating on 6063 aluminium alloy显示文摘In this paper,the sustainable Ce-Mn chemical conversion coating was fabricated on 6063 aluminium alloy by means of Ce(NO3)3 and KMnO4 as the inhibitors and NaF as the accelerator.The morphologies,composition and valence state of the coating were analyzed by scanning electron microscopy(SEM),energy dispersive spectrometry(EDS) and X-ray photoelectron spectroscopy(XPS),respectively.The results indicated that the Ce-Mn conversion coating was formed.The anticorrosion of the coating was evaluated in 3.5 wt.% NaCl aqueous solution at room temperature by using polarization curve and electrochemical impedance spectroscopy(EIS).It indicated that the treated surface presented better anticorrosion behavior in chloride media than on the original material surface.The corrosion resistance of Ce-Mn conversion coating was about equal to the trivalent chromium conversion coating. | ZHANG JunJun LI WenFang DU Jun HAN Dong ZHENG XiaoPing | 2010 | Chinese Science Bulletin2010，55，29： | 9 |
| 6 | Molecular analysis of long-term biofilm formation on PVC and cast iron surfaces in drinking water distribution system显示文摘To understand the impacts of different plumbing materials on long-term biofilm formation in water supply system, we analyzed microbial community compositions in the bulk water and biofilms on faucets with two different materials-polyvinyl chloride(PVC) and cast iron, which have been frequently used for more than10 years. Pyrosequencing was employed to describe both bacterial and eukaryotic microbial compositions. Bacterial communities in the bulk water and biofilm samples were significantly different from each other. Specific bacterial populations colonized on the surface of different materials. Hyphomicrobia and corrosion associated bacteria, such as Acidithiobacillus spp., Aquabacterium spp., Limnobacter thiooxidans, and Thiocapsa spp., were the most dominant bacteria identified in the PVC and cast iron biofilms, respectively, suggesting that bacterial colonization on the material surfaces was selective. Mycobacteria and Legionella spp. were common potential pathogenic bacteria occurred in the biofilm samples, but their abundance was different in the two biofilm bacterial communities. In contrast, the biofilm samples showed more similar eukaryotic communities than the bulk water. Notably, potential pathogenic fungi, i.e., Aspergillus spp. and Candida parapsilosis, occurred in similar abundance in both biofilms. These results indicated that microbial community, especially bacterial composition was remarkably affected by the different pipe materials(PVC and cast iron). | Ruyin Liu Junge Zhu Zhisheng Yu DevRaj Joshi Hongxun Zhang Wenfang Lin Min Yang | 2014 | Journal of Environmental Sciences2014，26，4： | 8 |
| 7 | High-precision measurement of mercury isotope ratios of atmospheric deposition over the past 150 years recorded in a peat core taken from Hongyuan, Sichuan Province, China显示文摘High-precision 210Pb dating technology was applied to a peat core with a time span of about 150 years that was taken from Hongyuan, Sichuan Province, China. The concentrations of total mercury (Hg) and stable isotope compositions of mercury in the peat core were measured using a LUMEX 915 instrument and multi-collector inductively coupled plasma mass spectrometer, respectively. Total mercury (Hg) concentrations in the peat core had a clearly increasing trend from the bottom to top of the core while δ 202Hg values (relative to NIST 3133) of peat had a decreasing trend. The total mercury (Hg) concentration varied from 16.7 to 101.3 ng/g and the δ 202Hg values ranged from –0.44‰± 0.14‰ to –1.45‰± 0.22‰. We clearly show that the study area experienced mercury pollution after the industrial revolution, and the mercury emitted from natural sources and anthropogenic sources had different Hg isotope signatures. | SHI WenFang FENG XinBin ZHANG Gan MING LiLi YIN RunSheng ZHAO ZhiQi WANG Jing | 2011 | Chinese Science Bulletin2011，56，9： | 7 |
| 8 | Observer-based Adaptive Optimal Control for Unknown Singularly Perturbed Nonlinear Systems With Input Constraints显示文摘This paper introduces an observer-based adaptive optimal control method for unknown singularly perturbed nonlinear systems with input constraints. First, a multi-time scales dynamic neural network(MTSDNN) observer with a novel updating law derived from a properly designed Lyapunov function is proposed to estimate the system states. Then, an adaptive learning rule driven by the critic NN weight error is presented for the critic NN, which is used to approximate the optimal cost function. Finally, the optimal control action is calculated by online solving the Hamilton-Jacobi-Bellman(HJB)equation associated with the MTSDNN observer and critic NN.The stability of the overall closed-loop system consisting of the MTSDNN observer, the critic NN and the optimal control action is proved. The proposed observer-based optimal control approach has an essential advantage that the system dynamics are not needed for implementation, and only the measured input/output data is needed. Moreover, the proposed optimal control design takes the input constraints into consideration and thus can overcome the restriction of actuator saturation.Simulation results are presented to confirm the validity of the investigated approach. | Zhijun Fu Wenfang Xie Subhash Rakheja Jing Na | 2017 | IEEE/CAA Journal of Automatica Sinica2017，4，1： | 6 |
| 9 | Microstructure evolution of rare earth Pr modified alumina-silicate short fiber-reinforced Al-Si metal matrix composites显示文摘Al-Si metal matrix composites (MMCs) reinforced with 20 vol.% alumina-silicate shot fibers (Al2O3-SiO2(sf)) were fabricated by an infiltration squeeze method. Pure Pr metal was added into these composites. The effect of Pr addition on the microstructure evolution of Al-Si MMCs was investigated by SEM,TEM,and EDS. Pr addition is favorable to make uniform microstructures with the modified eutectic Si crystal. PrAlSi phase with high contents of Pr and Si is observed on the interface between the fiber and the matrix. The addition of Pr promotes interface SiO2 reduction,and SiO2 comes from the crystallization of Al2O3-SiO2 short fibers. | Peng Jihua Li Wenfang Huang Fangliang Tian Jun Liu Gang Du Jun | 2009 | Rare Metals2009，28，2： | 6 |
| 10 | Viral MIPα homologous with human MIP-1α acts on HIV co-receptor CCR5显示文摘The function and usage of vMIPα encoded by K6 gene of herpesvirus 8 (HHV8) which has homology with human macrophage protein (MIP) have not been clearly known. In the present note the K6 gene of HHV8 was cloned and transfected into NIH3T3 cells and E. coli cells. Conditional media from the 3T3-transfected cells and K6 product vMIPa from E. coli. Cells were used to perform the experiments of ligand-receptor binding and cellular adhesion with peripheral blood macrophages. The conditional media and the purified vMIPa from E. coli could compete to bind to CCR5 located on macrophages from peripheral blood with I125-hMIP-1α chemokine of human. Cellular adhesion showed that the conditional media from transfected cells and the purified vMIPa did not induce the adhesion of macrophages from peripheral blood to ICAM-1. In conclusion, vMIPα encoded by K6 gene of HHV8 can bind to CCR5 of peripheral blood macrophage cells and does not induce their adhesion. This suggests that vMIPa enclosed CCR5, also known as HIV | Hanxiao Sun Lixia Feng Yicheng Li Wenfang He | 2001 | Chinese Science Bulletin2001，46，15： | 6 |
| 11 | Sulfur-containing compounds as electrolyte additives for lithium-ion batteries显示文摘Originating from“rocking-chair concept”,lithium-ion batteries(LIBs)have become one of the most important electrochemical energy storage technolo-gies,which have largely impacted our daily life.The utilization of electrolyte additives in small quantities(≤5%by wt or vol)has been long viewed as an economical and efficient approach to regulate the properties of electrolyte and electrode–electrolyte interphases and consequently improve the cycling perfor-mance of LIBs.Among all the kinds of electrolyte additives,sulfur-containing compounds have gained significant attention due to their unique features in building stable electrode–electrolyte interphases and protect battery cells from overcharging.In this work,advances and progresses of sulfur-containing addi-tives used in LIBs are overviewed,with special attention paid to the working mechanisms of these electrolyte additives.Particularly,four representative sulfur-containing compounds(i.e.,1,3-propane sultone,prop-1-ene-1,3-sultone,1,3,2-dioxathiolane-2,2-dioxide,and ethylene sulfite)are comparatively dis-cussed concerning their impact on electrode–electrolyte interphases and cell per-formances.Future work on the development of sulfur-containing compounds as functional electrolyte additives is also provided.The present review is antici-pated to be not only a base document to access the status quo in this research domain but also a guideline to select specialized additives and electrolytes for practical applications. | Bo Tong Ziyu Song Huihai Wan Wenfang Feng Michel Armand Jincheng Liu Heng Zhang Zhibin Zhou | 2021 | InfoMat2021，3，12： | 6 |
| 12 | Response of larch species to climate changes显示文摘Global warming has changed the distributions of forests of northeastern China.Larix are very important species in this area.Predicting the potential distributions of Larix species and their responses to climate change would attract more and more attention.This paper predicted the potential distributions of three Larix species based on‘climatic-topographic’relationships by logistic regression.The results showed that L.gmelinii is predicted to retreat northwestward by 220 km by 2050 and by 270 km more by 2100;L.olgensis var.changpaiensis is predicted to retreat northwestward by 200 km by 2050 and by 190 to 300 km more by 2100;L.principis-rupprechtii is predicted to retreat northeastward by 200 km by 2050 and by 250 to 400 km more by 2100.This indicated that L.gmelinii could have its optimum latitude moved into Russia,L.olgensis var.changpaiensis could move to the Small Xing’an Mountains and L.principisrupprechtii would move to the middle part of the Great Xing’an Mountains. | Wenfang Leng Hong S.He Hongjuan Liu | 2008 | Journal of Plant Ecology2008，1，3： | 5 |
| 13 | Effect of V and V-N Microalloying on Deformation-Induced Ferrite Transformation in Low Carbon Steels显示文摘导致变丑的铁酸盐转变(DIFT ) 被证明了是一条有效途径精制铁酸盐谷物。这篇论文证明铁酸盐谷物能进一步通过 DIFT 和 V 或 V-N microalloying 的联合被精制。在 7 矩阵溶解的钒制止 DIFT。在变丑期间,钒 carbonitrides 很快由于 strain-inducedprecipitation 猛抛,在钒的原因减少它在矩阵并且间接地溶解了 acceleratesDIFT。在重变丑下面,变丑导致了在 V microalloyed 钢的谷物是的铁酸盐(DIF ) 比那些好在 V 免费的钢。越多 V 增加了钢, DIF 谷物获得了越多 finer。而且,到 V microalloyed 钢的 N 的增加能显著地加速 V 的降水,然后支持 DIFT。然而,在 V-N microalloyed 钢的 DIF 谷物容易变粗。 | Kai WANG Lijun WANG Wenfang CUI Chunming LIU | 2006 | Journal of Materials Science & Technology2006，22，2： | 5 |
| 14 | PpERF3 positively regulates ABA biosynthesis by activating PpNCED2/3 transcription during fruit ripening in peach显示文摘The plant hormone ethylene regulates ripening in climacteric fruits.The phytohormone abscisic acid(ABA)affects ethylene biosynthesis,but whether ethylene influences ABA biosynthesis is unknown.To explore this possibility,we investigated the interactions between the ABA biosynthesis genes PpNCED2/3 and the ethylene response transcription factor PpERF3 in peach fruit.The ABA content increased during fruit maturation and reached a peak at stage S4 III.The increase was greatly inhibited by the ethylene inhibitor 1-MCP,which also suppressed PpERF3 expression.PpERF3 shared a similar expression profile with PpNCED2/3,encoding a rate-limiting enzyme involved in ABA biosynthesis,during fruit ripening.A yeast one-hybrid assay suggested that the nuclear-localized PpERF3 might bind to the promoters of PpNCED2/3.PpERF3 increased the expression of PpNCED2/3 as shown by dual-luciferase reporters,promoter-GUS assays and transient expression analyses in peach fruit.Collectively,these results suggest that ethylene promotes ABA biosynthesis through PpERF3’s regulation of the expression of ABA biosynthesis genes PpNCED2/3. | Xiaobei Wang Wenfang Zeng Yifeng Ding Yan Wang Liang Niu Jia-Long Yao Lei Pan Zhenhua Lu Guochao Cui Guohuai Li Zhiqiang Wang | 2019 | Horticulture Research2019，6，1： | 5 |
| 15 | Modeling the contribution of the microbial carbon pump to carbon sequestration in the South China Sea显示文摘The two key mechanisms for biologically driven carbon sequestration in oceans are the biological pump(BP) and the microbial carbon pump(MCP); the latter is scarcely simulated and quantified in the China seas. In this study, we developed a coupled physical-ecosystem model with major MCP processes in the South China Sea(SCS). The model estimated a SCSaveraged MCP rate of 1.55 mg C m^(-2) d^(-1), with an MCP-to-BP ratio of 1:6.08 when considering the BP at a depth of 1000 m.Moreover, the ecosystem responses were projected in two representative global warming scenarios where the sea surface temperature increased by 2 and 4°C. The projection suggested a declined productivity associated with the increased near-surface stratification and decreased nutrient supply, which leads to a reduction in diatom biomass and consequently the suppression of the BP. However, the relative ratio of picophytoplankton increased, inducing a higher microbial activity and a nonlinear response of MCP to the increase in temperature. On average, the ratio of MCP-to-BP at a 1000-m depth increased to 1:5.95 with surface warming of 4°C, indicating the higher impact of MCP in future ocean carbon sequestration. | Wenfang LU Yawei LUO Xiaohai YAN Yuwu JIANG | 2018 | Science China Earth Sciences2018，61，11： | 4 |
| 16 | Effect of transverse static magnetic field on radial microstructure of hypereutectic aluminum alloy during directional solidification显示文摘The effect of different scales thermoelectric magnetic convection(TEMC)on the radial solidification microstructure of hypereutectic Al alloy has been investigated under transverse static magnetic field during directional solidification,focusing on the formation of freckle.Our experimental and numerical simulation results indicate that the TEMC circulation at sample scale under transverse static magnetic field leads to the enrichment of solute Al on one side of the sample.The TEMC and the solute enrichment degree increase with the increase of magnetic field when the magnetic field increases to 0.5 T.The enrichment degree of solute elements under magnetic field is affected by temperature gradient and growth rate.The non-uniform distribution of solute Al in the radial direction of the sample results in the non-uniform distribution of primary dendrite arm spacing(PDAS).Moreover,the applied magnetic field can lead to freckle formation and its number increases with the increase of magnetic field.The change of freckle is consistent with the anisotropy TEMC caused by the anisotropy of primary dendrite or primary dendrite network under magnetic field.Finally,the mechanism of synergism effect of the anisotropy TEMC,the distribution of solute Al and the PDAS on freckle formation and evolution is studied during directional solidification under magnetic field. | Shaodong Hu Long Hou Kang Wang Zhongmiao Liao Wen Zhu Aihua Yi Wenfang Li Yves Fautrelle Xi Li | 2021 | Journal of Materials Science & Technology2021，，17： | 4 |
| 17 | Insights on catalytic mechanism of CeO2 as multiple nanozymes显示文摘CeO2 with the reversible Ce3+/Ce4+redox pair exhibits multiple enzyme-like catalytic performance,which has been recognized as a promising nanozyme with potentials for disease diagnosis and treatments.Tailorable surface physicochemical properties of various CeO2 catalysts with controllable sizes,morphologies,and surface states enable a rich surface chemistry for their interactions with various molecules and species,thus delivering a wide variety of catalytic behaviors under different conditions.Despite the significant progress made in developing CeO2-based nanozymes and their explorations for practical applications,their catalytic activity and specificity are still uncompetitive to their counterparts of natural enzymes under physiological environments.With the attempt to provide the insights on the rational design of highly performed CeO2 nanozymes,this review focuses on the recent explorations on the catalytic mechanisms of CeO2 with multiple enzyme-like performance.Given the detailed discussion and proposed perspectives,we hope this review can raise more interest and stimulate more efforts on this multi-disciplinary field. | Yuanyuan Ma Zhimin Tian Wenfang Zhai Yongquan Qu | 2022 | Nano Research2022，15，12： | 4 |
| 18 | Comparison of endoscopic papillary large balloon dilation and endoscopic sphincterotomy for retrieval of choledocholithiasis: a meta-analysis of randomized controlled trials显示文摘 | Yadong Feng Hong Zhu Xiaoxing Chen Shunfu Xu Wenfang Cheng Jinliang Ni Ruihua Shi | 2012 | Journal of Gastroenterology2012，，6： | 4 |
| 19 | Mechanism of oxidation and catalysis of organic matter abiotic humification in the presence of MnO_2显示文摘Humification plays a critical role in the environmental fate of organic wastes, and MnO_2 holds great promise for enhancing this reaction. However, the effects of MnO_2 on the enhancement of the humification reaction remain ambiguous. To better reveal the mechanism by which MnO_2 enhances the reaction and investigate the fate of the humification products, abiotic humification experiments were performed using increasing concentrations of dissolved organic matter(DOM) to a fixed amount of MnO_2. DOM was represented by model humic precursors consisting of catechol, glucose and glycine. The results indicate that the reduction of MnO_2 played a dominant role in the formation of fulvic-like acids(FLAs), and the subsequent reduction products, MnOOH and Mn(II), acted as catalysts in the formation of humic-like acids(HLAs). Moreover, CO_2 release occurred during the formation of FLAs, and a strong linear correlation between CO_2 release and the formation of FLAs was observed(p < 0.01), where 0.73–1.87 mg of CO_2 was released per mg dissolved organic carbon(DOC)FLAs. Furthermore, the concentration of MnO_2 had a pronounced influence on the product behavior, where a lower MnO_2 concentration decreased the quantity of FLAs produced. | Yingchao Zhang Dongbei Yue Xu Wang Wenfang Song | 2019 | Journal of Environmental Sciences2019，31，3： | 4 |
| 20 | UV-Irradiation Cured Organic-inorganic Hybrid Nanocomposite Initiated by Ethoxysilane-modified Multifunctional Polymeric Photoinitiator through Sol-gel Process显示文摘紫外痊愈的器官无机的混合 nanocomposite (nano-Si-m-PI ) 通过修改 ethoxysilane 的多功能的 oligomeric photoinitiator (Si-m-PI ) 开始的丙烯酸的树脂的 photopolymerization 被准备。2-hydroxy-4-(2-hydroxyethoxy ) 的酯化作用反应有 thioglycolic 酸的 -2-methylpropiophenone (Irgacure 2959 ) ,和有 dipentaerythritol hexaacrylate 然后 3-aminopropyltriethoxysilane 的下列增加反应为准备 Si-m-PI 被执行。Si-m-PI 与 Irgacure 2959 展出类似的紫外吸收和臼齿的扑灭系数。由 photo-DSC 分析的 photoinitiating 活动学习证明 Si-m-PI 在治好的混合电影在山峰最大值(Rpmax ) 和最后的 unsaturation 变换(Pf ) 拥有高 photopolymerization 率。从扫描电子显微镜(SEM ) 观察,而 nanoparticals 的聚集发生在 nano-Irg,在形成的 nano-Si-m-PI 一致地驱散的 SiO2 nanoparticles,它通过丙烯酸的树脂的 photopolymerization 被准备由 Irgacure 2959 开始了。而且与紫外痊愈的纯聚合物和 nano-Irg 相比, nano-Si-m-PI 显示出显著地提高的热稳定性和机械性质。 | Hu, Lihua Shi, Wenfang | 2011 | Chinese Journal of Chemistry2011，29，9： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员