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Superhydrophobic hierarchical porous divinylbenzene polymer for BTEX sensing and toluene/water selective detection

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Chinese Chemical Letters 2020年第8期31卷 2125-2128页

作者： Yang Chen Luyu Wang Jiawei Kong Bing Shen Jiaqiang Xu NEST Lab Department of PhysicsDepartment of ChemistryCollege of ScienceShanghai UniversityShanghai 200444China Institute of Fiber Based New Energy Materials The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of EducationSchool of Materials Science and EngineeringZhejiang Sci-Tech UniversityHangzhou 310018China MBA Center Shanghai UniversityShanghai 200444China

This work reports a superhydrophobic divinylbenzene polymer with hierarchical porous structure as sensing material to modify the quartz crystal microbalance(QCM)to detect benzene,toluene,ethylbenzene,and xylene(BTEX)***,sensing results toward toluene vapor in different relative humidities indicates that this superhydrophobic polymer has favorable toluene/water selective detection ***,the limit of detection toward toluene is lower than 1 ppm.

关键词： Quartz crystal microbalance(QCM) BTEX Superhydrophobic porous polymer Gas sensor

Hierarchically porous polymers with ultra-high affinity for bisphenol A enables high efficient water purification

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Science China Chemistry 2021年第8期64卷 1389-1400页

作者： Zelun Li Juan Wang Qian Chen Kelong Ai Lehui Lu State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China Department of Pharmacology Xiangya School of Pharmaceutical SciencesCentral South UniversityChangsha410078China

The widespread use of bisphenol A(BPA)poses a serious threat to the environment and human ***,efficient removal of BPA in water is incredibly challenging,owing to the inert chemical nature and electrical neutrality of *** order to solve this problem,for the first time,we propose that a strategy of designing conjugated porous polymers with the pore size matching the size of BPA can greatly enhance the binding force of *** this basis,we developed a novel conjugated poly 1,3,5-tri[4-(diphenylamino)phenyl]benzene(MPDPB)with intrinsic pore matching the size of BPA and multi-stage porous structure by editing polymerization with *** binding energy of MPDPB to BPA is the highest at present(37.84 kcal/mol),which is 2.3 times that of the most powerful adsorbent previously reported and five times that of the conventional *** advantages make MPDPB have super-high adsorption performance towards BPA and high absorbing stability under extreme ***,MPDPB could be easily loaded on a non-woven fabric to generate point-of-use devices,which could eliminate more than 99.8%of BPA,making it the best BPA candidate adsorbent *** believe that the proposed material design derived from the specific structure of the contaminant molecule can be extended to exploring further innovative adsorbents.

关键词： bisphenol A porous polymer water purification adsorbent micropollutant

Synthesis and Properties of Organic-Inorganic Hybrid porous polymers Obtained with Click Addition Reactions of Thiol-Functionalized Random Type Silsesquioxane by and Diacrylate or Diisocyanate Compounds

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Open Journal of polymer Chemistry 2020年第1期10卷 1-20页

作者： Tomoharu Miyanaga Naofumi Naga Graduate School of Engineering and Science Shibaura Institute of Technology Tokyo Japan Department of Applied Chemistry College of Engineering Shibaura Institute of Technology Tokyo Japan

Organic-inorganic hybrid network polymers have been synthesized by addition reaction of a thiol-functionalized random type silsesquioxane (SQ109) and alkyl diacrylate or diisocyanate compounds. Thiol-ene reaction of SQ109 and 1,4-butanediol diacrylate (BDA) successfully yield porous polymer in toluene initiated by azobis(isobutyronitrile) (AIBN) at 60°C. Morphology of the porous polymers was composed by connected globules, and the diameter of the globules decreased with increasing in the monomer concentration of the reaction system. By contrast, the reaction with 1,6-hexanediol diacrylate or 1,5-hexadiene yielded homogeneous clear gels. Thermal analyses of SQ109-BDA porous polymers indicated that thermal degradation of ester groups of BDA in the polymer network occurred at around 300°C. The porous polymer was also obtained by the reaction using a photo-initiator (Irugacure184) at room temperature, and showed higher Young’s modulus than the corresponding porous polymer obtained with the reaction with AIBN due to the small size of the globules. Young’s modulus

关键词： Silsesquioxane Thiol Diacrylate Diisocyanate Gel porous polymer Morphology

Visible-light degradation of azo dyes by imine-linked covalent organic frameworks

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Green Energy & Environment 2023年第1期8卷 194-199页

作者： Hongbo Xue Sen Xiong Kai Mi Yong Wang State Key Laboratory of Materials-Oriented Chemical Engineering And College of Chemical EngineeringNanjing Tech UniversityNanjing211816JiangsuChina

Covalent organic frameworks(COFs)are nanoporous crystalline polymers with densely conjugated *** work discovers that imine-linked COFs exhibit remarkable photodegradation efficiency to azo dyes dissolved in *** light generates different types of radicals from COFs,and superoxide radicals break N=N bonds in dye molecules,resulting in 100%degradation of azo dyes within 1 *** contrast,these dyes cannot be degraded by conventionally used photocatalysts,for example,***,the COF photocatalysts can be recovered from the dye solutions and re-used to degrade azo dyes for multiple times without loss of degradation *** work provides an efficient strategy to degrade synthetic dyes,and we expect that COFs with designable structures may use as new photocatalysts for other important applications.

关键词： Covalent organic frameworks Dyes Photocatalytic degradation porous polymer Water pollution

Recent Advances of Covalent Organic Frameworks in Chemical Sensing

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Chemical Research in Chinese Universities 2022年第2期38卷 339-349页

作者： XU Kai HUANG Ning Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of EducationState Key Laboratory of Silicon MaterialsDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027P.R.China

With the rapid development of reticular chemistry,an increasing number of covalent organic frameworks(COFs)have been designed and synthesized over the past *** to the large surface areas,numerous active sites,and high chemical stability,recent effects gradually were made to investigate the interaction with various small *** the reported application areas,sensorics is an attractive field,where COFs have exhibited tremendous potential and acquired high-performance sensitivity and selectivity due to their structural *** this review,we highlighted the recent progress of COFs as sensors for the detection of various analytes,mainly depending on the analysis of change of fluorescence *** basic principles of physics for fluorescence-based sensors were briefly discussed for better understanding of the relationship between structures and functions of ***,we reviewed various classes of small molecule analytes that have been successfully detected by COFs,including explosives,gases,humidity,metal ions,pH,and biological *** this work,we detailedly discussed the components of COFs,functional sites,and sensing performance in each sensing application,aiming to disclose their intrinsic *** review also concluded with several issues to be solved and provided the outlook for the future development direction for practical applications.

关键词： Covalent organic framework(COF) Sensing Fluorescence porous polymer

In Situ Loading and Delivery of Short Single- and Double-Stranded DNA by Supramolecular Organic Frameworks

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CCS Chemistry 2019年第2期1卷 156-165页

作者： Bo Yang Xiao-Dan Zhang Jian Li Jia Tian Yi-Peng Wu Fa-Xing Yu Ruibing Wang Hui Wang Dan-Wei Zhang Yi Liu Lu Zhou Zhan-Ting Li Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)Fudan UniversityShanghai 200438China Department of Medicinal Chemistry School of PharmacyFudan UniversityShanghai 201203China Children’s Hospital and Institutes of Biomedical Sciences Fudan UniversityShanghai 200032China State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacaoChina The Molecular Foundry Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

Short DNA represents an important class of bioma-cromolecules that arewidely applied in gene therapy,editing,and ***,the development of simple and reliable methods for their intracellular delivery remains a ***,we describe that seven water-soluble,homogeneous supramole-cular organic frameworks(SOFs)with a well-defined pore size and high stability in water that can accom-plish in situ inclusion of single-stranded(ss)and double-stranded(ds)DNA(21,23,and 58 nt)and effective intracellular delivery(including two non-cancerous and six cancerous cell lines).

关键词： nucleic acid delivery homogeneous car-rier electrostatic interaction self-assembly porous polymer

Aqueous Synthesis of Covalent Organic Frameworks as Photocatalysts for Hydrogen Peroxide Production

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CCS Chemistry 2022年第12期4卷 3751-3761页

作者： Fanglin Tan Yuanyuan Zheng Zhipeng Zhou Honglei Wang Xin Dong Jing Yang Zhaowei Ou Haoyuan Qi Wei Liu Zhikun Zheng Xudong Chen Key Laboratory for polymeric Composite and Functional Materials of Ministry of Education School of ChemistryState Key Laboratory of Optoelectronic Materials and TechnologiesSun Yat-sen UniversityGuangzhou 510275 Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong Province Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSchool of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275 Center for Advancing Electronics Dresden(cfaed)and Faculty of Chemistry and Food Chemistry Technical University of DresdenDresden 01069 Central Facility of Electron Microscopy Electron Microscopy Group of Materials ScienceUniversität UlmUlm 89081 Key Laboratory for polymeric Composite and Functional Materials of Ministry of Education School of ChemistrySun Yat-sen UniversityGuangzhou 510275

Covalent organic frameworks(COFs)are crystalline porous polymers with designable structures and *** crystallization typically relies on trialand-error experimentation involving harsh conditions,including organic solvents,presenting significant obstacles for rational design and large-scale ***,we present a liquid crystal-directed synthesis methodology and its implementation for up to gram-scale production of highly crystalline COFs in water and *** is compatible with monomers of different structures,shape,size,length of side chains,and electron-donating,electron-accepting,and heterocyclic substitutions near reactive *** types of donor-acceptor two-dimensional COFs including four types of new ones and a three-dimensional COF with a yield of up to 94%were demonstrated,showing great generality of the *** as-synthesized donor-acceptor COFs are organic semiconductors and contain macropores besides intrinsic mesopores which make them attractive *** production of H_(2)O_(2)under visible light in water was studied and the structure-property relationships were *** production rate reached 4347μmol h^(−1)gcat^(−1),which is about 467%better than that of the benchmark photocatalyst g-C_(3)N_(4).This study will inspire the mild synthesis and scale-up of a wide spectrum of COFs and organic semiconductors as efficient catalysts,promote their structure-property investigation,and boost their applications.

关键词： covalent organic frameworks liquid crystal photocatalysis hydrogen peroxide production porous polymer

Zwitterionic cellular polymer enabled reductive fixation of CO_(2) for N-methylation of amines

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Green Synthesis and Catalysis 2023年第4期4卷 342-349页

作者： Wenfeng Zhao Hu Li Hang Cong Hongguo Wu Ping Zhu Song Yang National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural Bioengineering(Ministry of Education)State-Local Joint Engineering Lab for Comprehensive Utilization of BiomassCenter for R&D of Fine ChemicalsGuizhou UniversityGuiyang 550025China Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province School of Chemistry and Chemical EngineeringGuizhou University Guiyang 550025China Centre for Catalysis and Sustainable Chemistry Department of ChemistryKemitorvet Building 207Technical University of DenmarkLyngby DK-2800Denmark

Using heterogeneous catalysts to promote the construction of the C–N bond between amines and CO_(2) under mild conditions is a challenge ***,we synthesized a novel zwitterionic polymer(PDDC)with a cellular structure via self-complexation of copolymer bearing both quaternary ammonium cation and carboxylate *** was employed as a recyclable catalyst for N-methylation of atmospheric CO_(2) and various amines with hydrosilane as a reductant,affording more than 17 N-methylamines in good to excellent yields(up to 99%)under mild *** behavior of PDDC in the reaction medium was disclosed by using a dynamic light scattering study,revealing that the decreased hydraulic radius of particle size contributes to exposing more active sites and increasing reaction *** a series of designed experiments and density functional theory calculations uncovered the crucial role of the prepared zwitterionic polymer during the reaction procedure of CO_(2) conversion.

关键词： CO_(2)utilization porous polymer Zwitterionic ion N-Methylation Heterogeneous catalysis

用高分子多孔微球作气相色谱固定相分离和测定酒精饮料中芳香成分

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福州大学学报(自然科学版) 1985年第3期 157-164页

作者：林政榕黄轮福州大学化学系省轻工研究所

本文报导了采用国产高分子多孔微球ＧＤＸ—１０３作为气相色谱固定相，分离和测定酒精饮料中芳香成分的含量，尤其在大量乙醇存在下，能将其他挥发性组分分开，且分离效果好．此法简单，快速，准确，可作为酒精饮料中挥发性组分的常... 详细信息

本文报导了采用国产高分子多孔微球ＧＤＸ—１０３作为气相色谱固定相，分离和测定酒精饮料中芳香成分的含量，尤其在大量乙醇存在下，能将其他挥发性组分分开，且分离效果好．此法简单，快速，准确，可作为酒精饮料中挥发性组分的常规分析．

关键词： GAS CHROMATOGRAPHY porous polymer YOLA- TILE AROMA COMPONENTS