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Chinese Journal of polymer science 2002年第6期20卷 525-530页

作者： De-cheng Wu Ying-fang Zou cai-yuan pan department of polymer science and engineering university of science and technology of china, hefei 230026, china department of polymer science and engineering University of Science and Technology of China Hefei 230026

The copolymerization of styrene (St) with maleic anhydride (MAh) under gamma radiation at room temperature in the presence of benzyl dithiobenzoate (BDTB) was found to display 'living' nature evidenced by constant concentration of chain radicals during the copolymerization, linear evolution of molecular weights with conversion and narrow molecular weight distribution (M-w/M-n = 1.23-1.35). The compositional analysis and the sequence structural information of the copolymers obtained from DEPT (Distortionless Enhancement by Polarization Transfer) experiments demonstrate that the copolymers obtained also possess strictly alternating structure.

关键词： controlled radical polymerization alternating copolymer maleic anhydride styrene

SYNTHESIS AND CHARACTERIZATION OF FOUR-ARMED BLOCK POLY(STYRENE-b-p-NITROPHENYL METHACRYLATE)PREPARED BY THE ATRP METHOD

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Chinese Journal of polymer science 2002年第4期20卷 353-360页

作者： cai-yuan pan Lei Tao Ye Liu department of polymer science and engineering university of science and technology of china, hefei 230026 china department of polymer science and engineering University of Science and Technology of China Hefei 230026

A novel tetrafunctional initiator, C [CH_2O (CH_2)_3 OOCCH(Br)CH_3]_4 (1), was synthesized through the reaction oftetraol with α-bromopropionyl chloride, and then was used as initiator of atom transfer radical polymerization (ATRP) in thepreparation of 4-armed polystyrene (PSt) with narrow polydispersity. The structure, molecular weight and molecular weightdistribution (MWD) of each arm were studied by ~1H-NMR and GPC data of hydrolyzed products of the 4-armed PSt. TheATRP of St using 1/CuBr/bpy as initiator system is of 'living' character based on the following evidence: narrow MWD,constant concentration of chain radical during the polymerization, control of molecular weight by the molar ratio of monomerconsumed to 1. The 4-armed poly(St-b-p-nitrophenyl methacrylate) [poly(St-b-NPMA)] was prepared by the ATRP ofNPMA using 4-armed PSt with terminal bromine as the initiator, and characterized by FT-IR, ~1H-NMR spectra and GPCcurves. The micelles with PSt as core, and PNPMA as shell were formed by dropping DMSO into a solution of 4-armedpoly(St-b-NPMA) in DMF, as proved by laser light scatter (LLS) method.

关键词： Tetrafunctional initiator Atom transfer radical polymerization 4-Armed polystyrene 4-Armed poly(styrene-b-pnitrophenyl methacrylate) Unimolecular micelles

Synthesis of a Novel Copper Phthalocyanine-Fullerene Dyad

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Chinese Chemical Letters 1997年第9期8卷 811-814页

作者： Wen Feng QIUa Yun Qi LIU cai yuan pan Dao Ben ZHU(Institute of Chemistry, Chinese Academy of sciences, Beijing 100080 department of Material science and engineering, the university of scienceand technology of china, hefei 230026) Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China department of Material science Univ. of Sci./Technology of China Hefei 230026 China

A new copper phthalocyanine-fullerene dyad (CuPc-C-60) was synthesized by Diels-Alder adduct of corresponding CuPc and C-60. The chemical structure of this compound was characterized by elemental analysis, MS, IR, UV-... 详细信息

关键词： Synthesis of a Novel Copper Phthalocyanine-Fullerene Dyad

Harnessing cytokine-induced killer cells to accelerate diabetic wound healing:an approach to regulating post-traumatic inflammation

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Regenerative Biomaterials 2024年第2期3卷 88-99页

作者： Yixi Yang Cheng Zhang yuan Jiang Yijun He iawei cai Lin Liang Zhaohuan Chen Sicheng pan Chu Hua Keke Wu Le Wang Zhiyong Zhang Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical university Guangdong Province Engineering Research Center for Biomedical EngineeringState Key Laboratory of Respiratory DiseaseDepartment of Orthopaedic SurgeryMedical Technology and Related Equipment Research for Spinal Injury TreatmentCity Key LaboratoryThe Third Affliated Hospital of Guangzhou Medical UniversitySchool of Biomedical EngineeringGuangzhou MedicalUniversityGuangzhouGuangdong510150P.R.China department of Osteoarthropathy and Sports Medicine Panyu Central HospitalGuangzhou 511400P.R.China

Impaired immunohomeostasis in diabetic wounds prolongs infiammation and cytokine dysfunction,thus,delaying or pre-venting wound-surface *** clinical studies have been conducted on cytokine-induced killer(CIK)cells recently,as they can be easily proliferated using a straightforward,inex-pensive ***,the function of CIK cells in regulat-ing inflammatory environments has been drawing attention for clinical *** the current investigation,we discovered the regenerative capacity of these cells in the chal-lenging environment of wounds that heal poorly due to *** demonstrated that the intravenous injection of CIK cells can re-establish a proregenerative inflammatory *** *** accelerateskin healing in diabetic *** results indicated that CIK cell treatment affects macrophage polarization and restores the function regenerative cells under hyperglycemic *** novel cellular therapy offers a promising intervention for clinical applic tions through specific inflammatory regulation functions.

关键词： macrophage diabetic wound post-traumatic inflammation cytokine-induced killer cells vascularization

Evolution and function of residual solvent in polymer-Li_2B_(12)H_(12) composite solid electrolyte

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Rare Metals 2024年第8期43卷 3748-3757页

作者： Xiang-Yang Ye Ke-pan Bao Sai-Nan Luo Xin Li Tai-Qiang Chen Shui-Xin Xia Tao yuan Yue-Peng pang Shi-You Zheng School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China department of Materials science and engineering National University of SingaporeSingapore 119077Singapore

Composite solid electrolytes(CSEs) containing polymer matrices and inorganic fillers hold promise for the next generation of solid-state ***,the role of residual solvents in CSEs remains *** study investigated the evolution and function of the residual solvent in a polymer-Li_2B_(12)H_(12) CSE.A partial reaction occurred between Li_2B_(12)H_(12) and solvent N,N-dimethylformamide(DMF),which produced dimethylaminomethanol(DMAM) in the *** functional theory calculations have revealed that DMA M forms stronger hydrogen bonds with polyvinylidene fluoride chains than DMF,which can have a plasticizing effect on the polymer matrix,leading to lower crystallinity and quicker segment ***,this CSE exhibited improved Li-ion conducting properties,enabling the stable cycling of Li‖LiFePO_(4) solid-state *** study provided insights into the role of residual solvents in CSEs.

关键词： Composite solid electrolyte Residual solvent Lithium borohydride Plasticizing effect

Strategies to accelerate bubble detachment for efficient hydrogen evolution

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Chinese Chemical Letters 2024年第1期35卷 196-207页

作者： Weinan Yin Lexing yuan Hao Huang Yuntao cai Junan pan Ning Sun Qiyu Zhang Qianhe Shu Chen Gu Zechao Zhuang Longlu Wang College of Electronic and Optical engineering&College of Flexible Electronics(Future technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China department of Chemistry Tsinghua UniversityBeijing 100084China

In the process of electrocatalytic water splitting, the management of gaseous products is an important task. Timely detachment of gaseous products from the electrode surface and the electrolyte is beneficial to the reduction of energy consumption of the electrolytic cell. In the existing industrial electrolytic cells, the circulating pump drives the electrolyte flowing to discharge the gaseous products. Up to now, several much more advanced strategies have been explored to deal with the negative effects of bubbles. In this review, we summarized various strategies for bubble detachment, including electrode design, external field imposing and system upgrading. We also elaborated the principle, functional features, practicability, advantages and limitations of each method. Finally, challenges and perspectives are also provided for the further development of advanced bubbles detachment strategies for efficient hydrogen evolution.

关键词： Bubble effect Electrocatalytic water splitting Electrode design External field System upgrade

Wearable and interactive multicolored photochromic fiber display

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Light(science & Applications) 2024年第3期13卷 454-465页

作者： pan Li Yuwei Wang Xiaoxian He Yuyang Cui Jingyu Ouyang Ju Ouyang Zicheng He Jiayu Hu Xiaojuan Liu Hang Wei Yu Wang Xiaoling Lu Qian Ji Xinyuan cai Li Liu Chong Hou Ning Zhou Shaowu pan Xiangru Wang Huamin Zhou Cheng-Wei Qiu Yan-Qing Lu Guangming Tao State Key Laboratory of Material Processing and Die&Mould technology School of Materials Science and Engineering and Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Vascular Aging(HUST) Ministry of EducationWuhan 430030China School of Optoelectronic science and engineering University of Electronic Science and Technology of ChinaChengdu 611731China department of Electrical and Computer engineering National University of SingaporeSingapore 117583Singapore National Laboratory of Solid State Microstructures Key Laboratory of Intelligent Optical Sensing and ManipulationCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023China School of Performing Arts Wuhan Conservatory of MusicWuhan 430060China School of Mechanical science and engineering Huazhong University of Science and TechnologyWuhan 430074China School of Architecture and Urban Planning Huazhong University of Science and TechnologyWuhan 430074China School of Fashion Beijing Institute of Fashion TechnologyBeijing 100029China School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China Tongji Medical College Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory for Modification of Chemical Fibers and polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Endowing flexible and adaptable fiber devices with light-emitting capabilities has the potential to revolutionize the current design philosophy of intelligent,wearable interactive ***,significant challenges remain in developing fiber devices when it comes to achieving uniform and customizable light effects while utilizing lightweight ***,we introduce a mass-produced,wearable,and interactive photochromic fiber that provides uniform multicolored light *** designed independent waveguides inside the fiber to maintain total internal reflection of light as it traverses the *** impact of excessive light leakage on the overall illuminance can be reduced by utilizing the saturable absorption effect of fluorescent materials to ensure light emission uniformity along the transmission *** addition,we coupled various fluorescent composite materials inside the fiber to achieve artificially controllable spectral radiation of multiple color systems in a single *** prepared fibers on mass-produced kilometer-long using the thermal drawing *** fibers can be directly integrated into daily wearable devices or clothing in various patterns and combined with other signal input components to control and display patterns as *** work provides a new perspective and inspiration to the existing field of fiber display interaction,paving the way for future human–machine integration.

关键词： fiber interactive colored

EFFECT OF WEAK INTERACTIONS ON PHENOL ADSORPTION FROM AQUEOUS SOLUTIONS BY AMINATED polymerIC ADSORBENTS

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Chinese Journal of polymer science 2006年第1期24卷 61-66页

作者： Wei-ming Zhang Jin-long Chen Ai-min Li Bing-cai pan Qun Chen Ming-yang He and Quan-xing Zhang a State Key Laboratory of Pollution Control and Resources Reuse,School of the Environment,Nanjing university,Nanjing 210093,china b Research Center for engineering technology of Organic Poison Control and Resources Reuse in Jiangsu Province,Nanjing 210038,china c department of Chemical engineering,Jiangsu Polytechnic university,Changzhou 213016,china State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing 210093 Research Center for engineering technology of Organic Poison Control and Resources Reuse in Jiangsu Province Nanjing 210038 department of Chemical engineering Jiangsu Polytechnic University Changzhou 213016

Adsorption behaviors of phenol from aqueous solutions have been investigated in batch systems at 303 K and 318 K respectively, using hypercrosslinked polymeric adsorbent （CHA111）, aminated hypercrosslinked polymeric adsorbents （NDA101, NDA103, NDA105） and weakly basic polymeric adsorbent （D301） with a view to studying the effect of hydrogen bonding and Van der Waals interactions between adsorbate and the adsorbent. All adsorption isotherms can be well fitted by Langmuir and Freundlich equations. Compared with D301 driven by hydrogen bonding interaction only and CHA111 driven by Van der Waals interaction only, phenol adsorption on aminated adsorbents driven by both hydrogen bonding and Van der Waals interactions were apparently different, i.e., negative effect for NDA105, positive effect for NDA101 and synergistic effect for NDA103. In this synergistic action, some weak interactions would contribute more or less to the adsorption than they work individually.

关键词： polymeric adsorbent Phenol Adsorption behaviours Negative effect Positive effect Synergistic effect.

Effect of UV Irradiation on pan Precursor Fibers and Stabilization Process

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Journal of Wuhan university of technology(Materials science) 2011年第3期26卷 449-454页

作者：袁慧五 department of Chemistry and Material Naval University of Engineering

A low-cost rout for modification the polyacrylontrile（pan） precursor fibers was *** approach involved pretreatment pan precursor fibers with UV irradiation for various periods of time before the fibers were *** effect of UV irradiation on the chemical structure,orientation factor,density,crystallite size and morphology of the fibers in the process of stabilization was characterized by use of fourier transform infrared spectroscopy（FTIR）,float-sink procedure,X-ray diffraction（XRD）,scanning electron microscope（SEM）,*** results showed that UV irradiation could increase the density of the fibers in stabilization *** analysis indicated that the cyclization of nitrile groups was initiated at room temperature by UV *** transformation of C≡N groups to C=N ones was accelerated in the process of *** orientation factor of irradiated fibers was also *** crystallite size was decreased at first and increased later,and the better irradiation time of UV was 3 min according to the XRD *** analysis indicated that irradiation could decrease the internal and surface defects of the stabilized fibers treated at 300 ℃.

关键词： pan precursor fibers UV irradiation cyclization crystallite size morphology

ADSORPTION OF LATERALLY INTERACTING 1-NAPHTHOL/1-NAPHTHYL-AMINE MIXTURES ON NONPOLAR SURFACES FROM AQUEOUS SOLUTIONS

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Chinese Journal of polymer science 2006年第1期24卷 73-80页

作者： Wei-ming Zhang Jin-long Chen Qun Chen Ming-yang He Bing-cai pan and Quan-xing Zhang a State Key Laboratory of Pollution Control and Resources Reuse,School of the Environment,Nanjing university,Nanjing 210093,china b Research Center for engineering technology of Organic Poison Control and Resources Reuse in Jiangsu Province,Nanjing 210038,china c department of Chemical engineering,Jiangsu Polytechnic,Changzhou 213016,china State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing 210093 Research Center for engineering technology of Organic Poison Control and Resources Reuse in Jiangsu Province Nanjing 210038 department of Chemical engineering Jiangsu Polytechnic Changzhou 213016

The binary adsorption behavior of 1-naphthol/1-naphthylamine mixtures in water on nonpolar adsorbent Amberlite XAD4 was investigated at 293 K, 303 K and 313 K, respectively. The experimental uptakes of 1-naphthol and 1-naphthylamine in all binary-component systems of different molar ratios were obviously higher than the corresponding uptakes predicted by the extended Langmuir model, assuming no interaction between the adsorbed molecules of the two components. This phenomenon was attributed to the cooperative adsorption effect arising from the hydrogen bonding interaction between 1-naphthol and 1-naphthylamine molecules. A modified extended Langmuir model was proposed to describe the binary adsorption behavior by means of introducing a fitting parameter related with the cooperative adsorption effect of the adsorbates.

关键词： Modified model 1-Naphthol 1-Naphthylamine Adsorbate-adsorbate interaction Cooperative effect.