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Soluble Eggshell Mebrane Protein:Antibacterial Property and Biodegradability

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Journal of Wuhan university of Technology(Materials science) 2007年第1期22卷 117-119页

作者：弋峰于建 institute of polymer science and engineering Department of Chemical EngineeringSchool of Materials Science and EngineeringTsinghua University

The antibacterial property and biodegradability of soluble eggshell membrane protein （SEP） are reported. Unlike the natural eggshell membrane （ESM）, SEP does not possess antibacterial property against E. coli. The... 详细信息

关键词： doluble eggshell membrane protein antibacterial property biodegradability

A General Procedure for Surface Modification of Nano-alumina and Its Application to Dendrimers

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Journal of Wuhan university of Technology(Materials science) 2007年第3期22卷 453-456页

作者：王斌郭朝霞 institute of polymer science and engineering Department of Chemical EngineeringSchool of Materials Science and EngineeringTsinghua University

A general procedure for surface modification of nano-alumina using N, N＇-dicyclohexyl- carbodiimide （DCC） mediated amidation is reported. Aliphatic and aromatic carboxylic acids reacted smoothly with nano-alumina pretreated with 3-aminopropyltriethoxysilane in the presence of DCC, giving modified aluminas having organic surfaces. The grafted aluminas have been characterized qualitatively by FT-IR or ^13C CPMAS NMR spectroscopy, and quantitatively by thermogravimetric analysis and elemental analysis. The procedure was applied to polyether dendrons bearing carboxyl groups at the focal points, giving successful grafting of dendrimers onto nano-alumina.

关键词： nano-alumina N, N'-dicyclohexyl-carbodiimide (DCC) surface modification dendrimers

Concerted Steric and Electronic Strategy in Thermostable Salicylaldiminato Nickel Catalysts for Ethylene(Co)polymerization

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Chinese Journal of polymer science 2024年第8期42卷 1085-1092页

作者： Hong-yu Ji Hong-Liang Mu Chun-Feng Tang yu-Xing Zhang yue Chi Zhong-Bao jian Key Laboratory of Advanced Structural Materials Ministry of EducationSchool of Materials Science and EngineeringChangchun University of TechnologyChangchun 130012China State Key Laboratory of polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Olefin polymerization is one of the most im portant chemical reactions in *** work presents a strategy that emphasizes the synergistic meta/poro-steric hindrance of N-aryl groups and electronic effects in newly synthesized neutral salicylaldiminato nickel *** nickel(Ⅱ)catalysts exhibit exceptional thermostability,ranging from 30℃to 130℃,demonstrating enhanced catalytic activities and broadly regulated polyethylene molecular weights(3-341 kg·mol^(-1))and controlled polymer branch density(2-102 brs/1000C).The preferred catalyst Ni3 with concerted steric and electronic effects enables the production of solid-state semi-crystalline polyethylene materials at temperatures below 90℃.Notably,Ni3 exhibits an impressive tolerance of 110℃and can withstand even the challenging polymerization temperature of 130℃,leading to the production of polyethylene wax and ***,functionalized polyethylene is produced.

关键词： Polyolefin Salicylaldiminato ligand Nickel catalyst Oil Wax

A Simple-Prepared and Multi-Reusable Adhesive Based on Epoxy Vitrimer

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Chinese Journal of polymer science 2024年第10期42卷 1589-1594,I0015页

作者： yu-Ting Wang Huan Liang Yen Wei jian-Long Wang Xiang-Ming He Yang Yang institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing100084China The Key Laboratory of Bioorganic Phosphorus Chemistry&chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing100084China

Adhesives play an important role in modern society's production and daily *** robust and sustainable adhesives remains a great *** we report a sustainable epoxy-vitrimer adhesive with high adhesive strength(about 10 MPa)and reusability(82%strength after 3 times).This adhesive can be fabricated from commercially available products through a straightforward hot-pressing method without the need of *** adhesive process is also simple,requiring only 30 min at 180℃.In addition,the vitrimer adhesive has the advantages of both erasability for reuse and excellent water *** work provides a facile strategy to fabricate high-strength adhesive that ensures reusability,recyclability,low cost of raw materials,and simple processing ***,it expands the range of potential applications for epoxy vitrimers.

关键词： Epoxy Vitrimer Adhesive Reusable Sustainable

3,5-二硝基苯甲酸淀粉酯对肌酐的吸附机理

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天津大学学报（自然科学与工程技术版） 2004年第10期37卷 857-862页

作者：杨冬芝于九皋清华大学化工系高分子所北京100084 天津大学理学院天津300072

通过口服吸附剂在患者胃肠道内吸附肌酐以降低其浓度,对于延缓慢性肾衰进程有重要意义.以HN MR、13CNMR和UV Vis技术考察了肌酐与3,5 二硝基苯甲酸(DNBA)之间的络合反应机理,在此基础上,结合3,5 二硝基苯甲酸淀粉酯(DSt)对肌酐的吸附产... 详细信息

通过口服吸附剂在患者胃肠道内吸附肌酐以降低其浓度,对于延缓慢性肾衰进程有重要意义.以HN MR、13CNMR和UV Vis技术考察了肌酐与3,5 二硝基苯甲酸(DNBA)之间的络合反应机理,在此基础上,结合3,5 二硝基苯甲酸淀粉酯(DSt)对肌酐的吸附产物分析,推测了DSt对肌酐的吸附机理.结果表明,在碱性水溶液中,肌酐分子中的亚甲基易失去一个质子,并进攻DNBA的苯环,与其形成σ络合物;在微碱性的透析液中,DSt对肌酐的吸附主要是通过硝基苯环与肌酐之间形成σ络合物,络合机理与DNBA和肌酐之间的络合反应相似.

关键词： 3,5-二硝基苯甲酸淀粉酯肌酐吸附机理

Hollow Multishelled Structure: Synthesis Chemistry and Application

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chemical Research in Chinese Universities 2024年第3期40卷 346-393页

作者： MAO Dan WANG Chao LI Wei ZHOU Liang LIU jian ZHENG Zjian ZHAO Yong CAO An-min WANG Shutao HUANG Jiaxing HUO Fengwei CHEN Hongyu MAI Liqiang yu Ranbo WANG Lianzhou LU yunfeng yu Chengzhong YANG Qihua YANG Zhenzhong ZENG Hua Chun ZHAO Hujun TANG Zhiyong ZHAO Dongyuan WANG Dan State Key Laboratory of Biochemical engineering Institute of Process EngineeringChineseAcademy of SciencesBeijing 100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBejing 100190P.R.China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong SARP.R.China department of Chemistry Fudan UniversityShanghai 200433P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China School of Chemistry Beihang UniversityBejing 100191P.R.China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and beijing National Laboratory for Molecular sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China CAS Key Laboratory of Bio-inspired Materials and Interfacial science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of engineering Westlake UniversityHangzhou 310024P.R.China School of Flexible Electronics(Future Technologies) Nanjing Tech UniversityNanjing 211816P.R.China School of science Westlake UniversityHangzhou 310024P.R.China School of Materials science and engineering Wuhan University of TechnologyWuhan 430070P.R.China School of Metallurgical and Ecological engineering University of Science and Technology BeijingBeijing 100083P.R.China School of chemical engineering and Australian institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia College of Life science and Technology Bejing University of Chemical TechnologyBejing 100029P.R.China School of Chemistry and Molecular engineering East China Normal UniversityShanghai 200241P.R.China College of Life sciences Zhejiang Normal UniversityJinhua 321004P.R.China department of chemical engineering Tsinghua UniversityBeijing 100

Hollow multishelled structure(HoMS),a promising and complex multifunctional structural system,features at least two shells that are separated by internal *** unique structure endows it with numerous advantages including low density,high loading capacity,large specific surface area,facilitated mass transport,and multiple spatial confinement *** the past twenty years,benefiting from the booming development of synthesis methods,various HoMS materials have been prepared and show promising applications in diverse areas.

关键词： Hollow multishelled structure Synthesis chemistry Energy storage Catalysis Electromagnetic wave absorption Drug delivery Sensor

Selective hydrodeoxygenation of guaiacol to cyclohexanol using activated hydrochar-supported Ru catalysts

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Frontiers of chemical science and engineering 2024年第5期18卷 13-22页

作者： Kaile Li Shijie yu Qinghai Li Yanguo Zhang Hui Zhou Key Laboratory for Thermal science and Power engineering of Ministry of Education Beijing Key Laboratory of CO_(2) Utilization and Reduction TechnologyDepartment of Energy and Power EngineeringTsinghua UniversityBeijing 100084China department of chemical and Biomolecular engineering National University of SingaporeSingapore117585Singapore

Lignin,an abundant aromatic polymer in nature,has received significant attention for its potential in the production of bio-oils and chemicals owing to increased resource availability and environmental *** hydrodeoxygenation of guaiacol,a lignin-derived monomer,can produce cyclohexanol,a nylon precursor,in a carbon-negative and environmentally friendly *** study explored the porous properties and the effects of activation methods on the Ru-based catalyst supported by environmentally friendly and cost-effective *** selective cleavage of C_(ary)-O bonds was achieved under mild conditions(160°C,0.2 MPa H_(2),and 4 h),and alkali activation further improved the catalytic *** characterization methods revealedthat hydrothermal treatment and alkali activation relatively contributed to the excellent performance of the catalysts and influenced their porous structure and Ru dispersion.X-ray photoelectron spectroscopy results revealed an increased formation of metallic ruthenium,indicating the effective regulation of interaction between active sites and *** synergistic approach used in this study,involving the valorization of cellulose-derived hydrochar and the selective production of nylon precursors from lignin-derived guaiacol,indicated the comprehensive and sustainable utilization of biomass resources.

关键词： hydrochar guaiacol cyclohexanol activation full-component utilization

New sustainable polymers with on-demand depolymerization property

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science china Chemistry 2024年第9期67卷 2803-2841页

作者： Yangyang Sun Zesheng An Yanshan Gao Rongrong Hu Ye Liu Hua Lu Xiao-Bing Lu Xuan Pang Anjun Qin Yong Shen Youhua Tao yu-Zhong Wang Junpeng Wang Gang Wu Guang-Peng Wu Tie-Qi Xu Xing-Hong Zhang yuetao Zhang Zhenbiao Zhang jian-Bo Zhu Miao Hong Zhibo Li State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China State Key Laboratory Base of Eco-chemical engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdao266042China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth China University of TechnologyGuangzhou 510640China State Key Laboratory of Fine chemicals Frontiers Science Center for Smart MaterialsDalian University of TechnologyDalian 116024China beijing National Laboratory for Molecular sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Key Laboratory of polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China The Collaborative Innovation Center for Eco-Friendly and Fire-Safety polymeric Materials(MoE) National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan)College of ChemistryState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610064China School of polymer science and polymer engineering the University of AkronAkronOH 44325USA MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China State and Local Joint engineering Laboratory for Novel Functional polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationSuzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

To combat the crisis of today's synthetic polymers arising from unsustainable production and disposal,it is essential for the synthetic polymer community to reshape the current polymer industry with sustainable *** an emerging class of sustainable polymers,the development of chemically depolymerizable polymers(CDPs),which can undergo closed-loop depolymerization/repolymerization cycles to reproduce virgin polymers without the loss of properties from recovered monomers,offers an ideal solution to preserve finite natural resources,provides a feasible solution to the end-of-life issue of polymer waste,and thereby establishes a circular materials ***,two grand key challenges have been encountered in the establishment of practically useful CDPs:how to balance polymerization and depolymerization ability and how to unify conflicted depolymerizability and physical ***,this critical review article presents our vision for summarizing feasible strategies to overcome the above two significant challenges and the design principles for constructing an ideal CDP by highlighting selected major progress made in this rapidly expanding field.

关键词： chemically depolymerizable polymers sustainable polymers depolymerization monomer recovery degradation plastics

Strategies for flame-retardant polymer electrolytes for safe lithiumbased batteries

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Nano Research 2024年第10期17卷 8754-8771页

作者： Xiao Ma Yang Lu yu Ou Shuaishuai Yan Wenhui Hou Pan Zhou Kai Liu department of chemical engineering Tsinghua UniversityBeijing 100084China

The advancement of lithium-based batteries has spurred anticipation for enhanced energy density,extended cycle life and reduced capacity ***,these benefits are accompanied by potential risks,such as thermal runaway and explosions due to higher energy ***,liquid organic electrolytes are the predominant choice for lithium batteries,despite their limitations in terms of mechanical strength and vulnerability to *** development of polymer electrolytes,with their high Young’s modulus and enhanced safety features,offers a potential solution to the drawbacks of traditional liquid *** these advantages,polymer electrolytes are still susceptible to burning and *** address this issue,researchers have conducted extensive studies to improve their flame-retardant properties from various *** review provides a concise overview of the thermal runaway mechanisms,flame-retardant mechanisms and electrochemical performance of polymer *** also outlines the advancements in flame-retardant polymer electrolytes through the incorporation of various additives and the selection of inherently flame-retardant *** review aims to offer a comprehensive understanding of flame-retardant polymer electrolytes and serve as a guide for future research in this field.

关键词： lithium batteries polymer electrolyte thermal runaway flame-retardant additives energy storage materials