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Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side chains

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 72-75 doi: 10.1007/s11705-007-0015-7

Abstract: Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution wasdependent on its grafting extent and concentration.was found to increase with the increase of the grafting extent and decrease with the increase of the copolymerconcentration.

Keywords： transmittance     copolymer concentration     LCST     temperature     elemental    

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PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0980-0

Abstract: PVDF was blended with the copolymer mixture containing PVDF-g-PEGMA, solvent and residual PEGMA underIn this study, we explored the effect of the copolymer mixture additives with different synthesis times

Keywords： Polyvinylidene fluoride ultrafiltration membrane     Amphiphilic copolymer     Blended modification     High flux    

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Synthesis of a new iron (III) porphyrin acrylate-styrene copolymer and its catalysis for hydroxylation

YU Hancheng, LI Xixian, HUANG Jinwang, JI Liangnian, CHEN Xianli

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 65-67 doi: 10.1007/s11705-007-0013-9

Abstract: A new iron (III) porphyrin acrylate-styrene copolymer, P[(PorFe)A-S], was synthesized by the reactionby construction of a homophase catalytic system containing the iron (III) porphyrin acrylate-styrene copolymer

Keywords： plasma-atomic emission     UV-Vis     weight determination     acrylate-styrene copolymer     styrene    

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Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1514-1523 doi: 10.1007/s11705-021-2092-4

Abstract: thermoresponsive poly(acrylamide-co-acrylonitrile)-b-poly(N-vinylimidazole) block copolymerThe imidazole groups in the block copolymer were conducive to the improvement of catalytic performanceGood stability and reusability were observed over these copolymer-immobilized catalysts with no obvious

Keywords： aerobic oxidation     base-free     5-hydroxymethyl-2-furfural     Pt nanoparticle     thermoresponsive block copolymer    

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Effect of styrene-butadiene-styrene copolymer on the aging resistance of asphalt: An atomistic understanding

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1261-1276 doi: 10.1007/s11709-021-0761-5

Abstract: To reveal the potential influence of styrene-butadiene-styrene (SBS) polymer modification on the anti-aging performance of asphalt, and its mechanism, we explored the aging characteristics of base asphalt and SBS-modified asphalt by reaction force field (ReaxFF) and classical molecular dynamics simulations. The results illustrate that the SBS asphalt is more susceptible to oxidative aging than the base asphalt under oxygen-deficient conditions due to the presence of unsaturated C=C bonds in the SBS polymer. In the case of sufficient oxygen, the SBS polymer inhibits the oxidation of asphalt by restraining the diffusion of asphalt molecules. Compared with the base asphalt, the SBS asphalt exhibits a higher degree of oxidation at the early stage of pavement service and a lower degree of oxidation in the long run. In addition, SBS polymer degrades into small blocks during aging, thus counteracting the hardening of aged asphalt and partially restoring its low-temperature cracking resistance.

Keywords： SBS asphalt     oxidative aging     asphalt hardening     ReaxFF     molecular dynamics    

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Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template

ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 68-71 doi: 10.1007/s11705-007-0014-8

Abstract: Decreasing the value of pH or adding Ca ion to the copolymer solution will make phase separation occurWith the increase of the pH value of copolymer solution, the changes of the solution viscosity was similarBut the increase range of template copolymer was higher than that of homopolyacrylic acid.TEM images indicated that at the maximal viscosity the copolymer obtained in the presence of template

Keywords： aqueous solution     homopolyacrylic     copolymer solution     significant structure     presence    

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Preparation of copolymer-grafted mixed-mode resins for immunoglobulin G adsorption

Shenggang Chen, Tao Liu, Ruiqi Yang, Dongqiang Lin, Shanjing Yao

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 70-79 doi: 10.1007/s11705-018-1745-4

Abstract: The mixed-mode resins for protein adsorption have been prepared by a novel strategy, copolymer graftingSpecially, the copolymer-grafted resins CG-M-A with two functional groups, 5-amino-benzimidazole (ABImonoclonal antibody from cell culture supernatant are 96.0% and 86.5%, respectively, indicating that copolymer-grafted

Keywords： atom transfer radical polymerization     copolymer-grafting     mixed-mode resin     protein adsorption    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: Here, we provide an overview of the recent developments of localized high-concentration electrolytesFirstly, the solvation structures and physicochemical properties of localized high-concentration electrolytesThen, the developments of localized high-concentration electrolytes to suppress the formation of dendriticLastly, the remaining challenges and further possible research directions for localized high-concentration

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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Molecular dynamics study of water diffusion in an amphiphilic block copolymer with large difference in

Yang Zhou, Phillip Choi

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 440-447 doi: 10.1007/s11705-017-1626-2

Abstract: The computed self-diffusion coefficient of water increased exponentially with increasing water concentration

Keywords： molecular dynamics simulation     amphiphilic block copolymer     free volume     water diffusivity     fujita model    

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PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract:

● Monthly hospitalization expenses are sensitive to increases in PM2.5 exposure.

Keywords： Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

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Morphologies of diblock copolymer confined in a slit with patterned surfaces studied by dissipative particle

FENG Jian, HUANG Yongmin, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 132-139 doi: 10.1007/s11705-007-0025-5

Abstract: To overcome this disadvantage, the diblock copolymer confined in a restricted system with a patternedIn this work, the morphologies of a thin film of diblock copolymer confined between patterned and neutralIt is shown that the morphology of the symmetric diblock copolymer is affected by the ratio of the patternperiod on the surface to the lamellar period of the symmetric diblock copolymer and by the repulsionThe lamellar period is also affected by the polydispersity of the symmetric diblock copolymer.

Keywords： weight     nano-fabrication     morphology     matching     dissipative particle    

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Highly selective detection of copper(II) by a “ligand-free” conjugated copolymer in nucleophilic solvents

Weixing Deng, Pengfei Sun, Quli Fan, Lei Zhang, Tsuyoshi Minami

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 105-111 doi: 10.1007/s11705-019-1791-6

Abstract: The synthesis of -cyclohexyl carbamate-attached fluorene- -phenylene copolymer (PFPNCC) and the use

Keywords： ligand-free     fluorescent chemosensor     copper     photo-induced electron transfer    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notch stress concentrationTo improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingto investigate the effects of multiple geometric parameters of a rib–deck weld on the notch stress concentrationregression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentrationThe notch stress concentration factors estimated from the developed formulas show agree well with the

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 745-754 doi: 10.1007/s11705-021-2038-x

Abstract: Selective swelling was performed on the obtained block copolymer structures in the solvent pair of ethanolhydrochloric acid and the spaces initially occupied by CaCO3 provided extra pores to the block copolymer

Keywords： block copolymers     selective swelling     ultrafiltration     CaCO3 nanoparticles     sacrificial nanofillers    

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Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1065-1071 doi: 10.1007/s11705-019-1909-x

Abstract: In order to investigate the effect of the electrolyte concentration on the properties of MAO coatings

Keywords： aluminum alloy     micro-arc oxidation     coating     electrolyte concentration     tribological performance    

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Title Author Date Type Operation

Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side chains

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Journal Article

PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Journal Article

Synthesis of a new iron (III) porphyrin acrylate-styrene copolymer and its catalysis for hydroxylation

YU Hancheng, LI Xixian, HUANG Jinwang, JI Liangnian, CHEN Xianli

Journal Article

Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Journal Article

Effect of styrene-butadiene-styrene copolymer on the aging resistance of asphalt: An atomistic understanding

Journal Article

Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template

ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian

Journal Article

Preparation of copolymer-grafted mixed-mode resins for immunoglobulin G adsorption

Shenggang Chen, Tao Liu, Ruiqi Yang, Dongqiang Lin, Shanjing Yao

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

Molecular dynamics study of water diffusion in an amphiphilic block copolymer with large difference in

Yang Zhou, Phillip Choi

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

Morphologies of diblock copolymer confined in a slit with patterned surfaces studied by dissipative particle

FENG Jian, HUANG Yongmin, LIU Honglai, HU Ying

Journal Article

Highly selective detection of copper(II) by a “ligand-free” conjugated copolymer in nucleophilic solvents

Weixing Deng, Pengfei Sun, Quli Fan, Lei Zhang, Tsuyoshi Minami

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Journal Article

Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Journal Article