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13篇 您的检索式:作者名="Daodao"
    题名 作者 年代 出处 被引量
1Preparation and properties of chitosan-poly(N-isopropylacrylamide) full-IPN hydrogels显示文摘Mingzhen W Yu F Daodao H 2001Reactive & Functional Polymers2001,48,:1
2Composite micro- spheres with PAM microgel core wnd polymerisable sur- factant/polyoxometalatecomplexes shell显示文摘Li Hong Zhang Ping Hu Daodao 2009Journal of Materials Chemistry2009,19,:1
3Preparation and mechanism of Fe3O4/Au core/shell super-paramagnetic microspheres显示文摘Yali Cui Daodao Hu Yu Fang Jianbiao Ma 2001Science in China Series B: Chemistry2001,,4:1
4Novel method for preparation of structure microspheres poly (N - isopropylacryamide - co - acrylic acid) /SiO2 显示文摘YANG Juxiang HU Daodao FANG Yu 2006Chem Mater2006,18,:1
5A New DOPO-Eugenol Adduct as an Effective Flame Retardant for Epoxy Thermosets with Improved Mechanical Properties显示文摘The development of efficient green flame retardants is an important way to realize more sustainable epoxy thermosets and downstream materials.In this work,a monoepoxide is synthesized through O-glycidylation of eugenol,and then reacted with DOPO(9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide)to obtain a new bio-based flame retardant,DOPO-GE.DOPO-GE is blended with a bisphenol A epoxy prepolymer exhibiting good compatibility and DDS(4,4′-diaminodiphenylsulfone)is used as the curing agent to afford epoxy thermosets.Although DOPO-GE leads to the reduced glass transition temperature of the thermosets,the storage modulus increases considerably.The DOPO-GE-modified thermosets exhibit the high thermal stability with the onset thermal decomposition temperature in nitrogen and air exceeding 300℃.When the phosphorus content in the thermoset is 1.0%,the residual yield of the thermosets at 750℃ in nitrogen increases from 13.9%to 30.6%,due to the increased charring ability.More interestingly,when the phosphorus content is only 0.5%,the limiting oxygen index is as high as 30.3%with UL94 V0 achieved.Cone calorimeter results reveals the significantly decreased heat release rate,total heat release,mass loss and total smoke production.Furthermore,DOPO-GE can notably improve the flexural strength,flexural modulus and fracture toughness,whereas the shear and impact strength are reduced to varied extents.In short,DOPO-GE can be obtained via a facile way,and shows the good flame-retardant effect on the epoxy thermosets with an application potential.Daqin Zhang Chufeng Yang Huayang Ran Juanli Wang Jintao Wan Yuhu Li Pujun Jin Daodao Hu 2022Journal of Renewable Materials2022,10,7:1
6Novel method for preparation of structural microspheres poly ( N-isopropylacrylamide-co-acrylic acid )/SiOz 显示文摘Yang Juxiang Hu Daodao Fang Yu 2006Chemistry of Materials2006,18,20:1
7Preparation and mechanism of Fe3O4/Au core/shell super-paramagnetic microspheres显示文摘Yali Cui Daodao Hu Yu Fang Jianbiao Ma 2001Science in China Series B: Chemistry2001,,4:1
8Preparation and mechanism of Fe3O4/Au core/shell super-paramagnetic microspheres显示文摘Yali Cui Daodao Hu Yu Fang Jianbiao Ma 2001Science in China Series B: Chemistry2001,,4:1
9Novel Method for Preparation of Structural Microspher-res Poly (N-isopropylacrylamide-co-acrylic acid)/SiO2 显示文摘J uxiang Yang Daodao H u 2006Chem Mater2006,18,:1
10A Vanillin-Derived,DOPO-Contained Bisphenol as a Reactive Flame Retardant for High-Performance Epoxy Thermosets显示文摘Quest for bio-based halogen-free green flame retardant has attracted many concerns in recent years.Herein a reactive functional flame retardant containing phosphorus VDP is synthesized from vanillin,9,10-dihydro-9-oxa-10-phosphophene-10-oxide(DOPO)and phenol via a facile way.VDP is characterized with^(1)H NMR,^(31)P NMR,FTIR and Time of Flight Mass Spectrometry,and used as a new reactive flame retardant for bisphenol epoxy thermosets.Thermogravimetry analysis shows that when the VDP loading is only 0.5P%(based on phosphorus content),the residue increases from 14.2%to 21.1%at 750℃ in N_(2)compare with neat DGEBA.Correspondingly,the limit oxygen index increased to 29.6%,and flame retardancy reaches UL-94 V0 grade.Micro combustion calorimetry(MCC)and cone calorimetry analyses demonstrate that VDP can significantly lower flammability of the epoxy thermoset.With only 0.5P%of VDP,the heat release rate,total heat release rate and smoke production are reduced markedly.At the same time,the mechanical properties of the modified epoxy thermosets are also improved.The impact strength increases by 34%and the flexural strength increased by 23%,with 1.5P%of VDP.In short,VDP not only improves the flame retardancy,but also improves the mechanical properties of the epoxy thermosets.Li Wang Rongbai Tong Juanli Wang Jintao Wan Yuhu Li Pujun Jin Daodao Hu 2022Journal of Renewable Materials2022,10,5:1
11显示文摘Mingzhen W Yu F Daodao H 2001Reactive & Functional Polymers2001,48,:1
12Amino Acid Catalyzed Bulk-phase Gelation of Organoalkoxysilanes via a Transient Co-operative Self-assembly显示文摘Shen Shukun Hu Daodao Sun Peipei 2009The Journal of Physical Chemistry B2009,113,13:1
13Crystal structure and thermal decomposition mechanism of the supramolecular complex of barium chloride with inositol显示文摘The single crystal of [Ba(H2O)2(C6H12O6)2Cl2] was obtained based on the phase equilibrium results. Its structure was determined by X-ray crystallographic analysis. The crystals are monoclinic and in space group C2/c with a = 1.901 7(2) nm, b = 0.682 13(8) nm, c = 0.162 60(2) nm, β = 96.593(2)° and V = 2.095 3(4) nm3, Z = 4, DC = 1.917 g·cm-3. In its solid state, this supramolecular complex is a three-dimensional network with double layers connected by hydrogen bondings. The molecule structure of [Ba(H2O)2(C6H12O6)2Cl2] has a central barium ion that is coordinated to two water molecules, two chlorides, and four hydroxyls from the two inositols. Losing the coordinating water is controlled by random nucleation and growth mechanism (n = 2/3) and 3-dimensional diffusion mechanism (n = 2).WANG Feili,TANG Zongxun,LI Shuni,HU Daodao,ZHAO Hongan,HU Huaimin & ZHOU Zhongyuan Department of Chemistry,Northwest University / Shaanxi Key Laboratory of Physico-lnorganic Chemistry,Xi’an 710069,China Shaanxi Normal University,Xi’an 710062,China Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,Chengdu 610041,China 2005Science China Chemistry2005,48,z1:0
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