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Continuous Synthesis of Main-Chain-type Fluorinated Graft Copolymers via Successive Flow START Polymerization and Cu(0)-Mediated RDRP

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Chinese Journal of Polymer Science 2023年第8期41卷 1155-1161,I0004页

作者： Peng Wang Shuai-Jie Chen Jian-Nan Cheng Wei-Wei He Li-Fen Zhang Zhen-Ping Cheng 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 ScienceSoochowUniversitySuzhou 215123China State Key Laboratory of Radiation Medicine and Protection School of Radiological and Interdisciplinary Sciences(RADX)Soochow UniversityCollaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education InstitutionsSuzhou 215123China

Fluorinated polymers are receiving more and more attention worldwide due to their unique chemical properties,and modified fluorinated polymers with different topologies are persued for enriching and enhancing their performance in a variety of application *** this work,main-chain-type semifluorinated graft copolymers are produced steadily in continuous tube reactors via photocontrolled step transferaddition and radical-termination(START)polymerization and Cu(0)-mediated reversible deactivation radical polymerization(Cu(0)-RDRP)at room temperature for the first ***,semifluorinated alternating copolymer(AB)n B is prepared by START polymerization of 1,6-diiodoperfluorohexane(A)and 1,7-octadiene(B)in the first quartz pipeline under irradiation with purple LED light at 20℃.The(AB)nB with periodic C―I bonds is then flowed into the second copper pipeline directly and acts as the macroinitiators for Cu(0)-RDRP of methyl acrylate(MA)to obtain corresponding graft copolymer(AB)n *** work provides a new strategy for continuous synthesis of fluorinated graft copolymer materials.

关键词： Fluoropolymers Photopolymerization Graft Polymer Cu(O)-mediated RDRP START polymerization

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Enhanced charge collection of AgNWs-based top electrode to realize high-performance,all-solution processed organic solar cells

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Science China Chemistry 2024年第10期67卷 3347-3356页

作者： Juanyong Wan Yang Chen Weijie Chen Jinfeng Xia Guang Zeng Jianlei Cao Chuang Jin Yunxiu Shen Xiaoxiao Wu Haiyang Chen Junyuan Ding Xue-mei Ou Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Jiangsu Sidike New Materials Science and Technology Co. Ltd.Suqian 215400China

All-solution processed organic solar cells are the ultimate aim of printable photovoltaics,but their electrical losses arising from poor contact of top electrodes greatly limit efficiency *** solve the problem,a solution-processed hybrid top electrode was constructed using silver nanowires(AgNWs)as the skeleton and ZnO nanoparticles(ZnO-NPs)as the *** constructing the skeleton,a spin-rinsing treatment was first used to reduce the amount of the residual insulating polyvinylpyrrolidone wrapped around the AgNWs to promote intimate contact among the AgNWs in the ***,the ZnO-NPs matrix was deposited onto the AgNWs skeleton,bridging the AgNWs skeleton with the underlayer ZnO-NPs electron transporting layer(ETL).The underlayer ZnO-NPs ETL can also induce the growth of the ZnO-NPs matrix to minimize lattice mismatch,which creates additional transport channels from the ETL to the AgNWs skeleton for charge *** a result,the obtained electrode significantly enhances the electrical contact in the device,thus delivering record power conversion efficiencies of 16.04%and 14.54%for rigid and flexible all-solution processed OSCs,respectively.

关键词： solution-processed top electrode organic solar cells AgNWs electrical contact

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Recent advances in fluorinated polymers:synthesis and diverse applications

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Science China Chemistry 2023年第12期66卷 3347-3359页

作者： Yutong Chen Chuan Luo Faqi Hu Zhenkai Huang Kan Yue South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft MatterSouth China University of TechnologyGuangzhou 510640China School of Materials Science and Hydrogen Energy Foshan UniversityFoshan 528000China Jiangsu Key Laboratory of Advanced Functional Polymers Design and Application Soochow UniversitySuzhou 215000China

Fluorinated polymers exhibit a unique combination of attributes,including chemical inertness,low surface energy,exceptional weather resistance,and intriguing electrical *** mini review provides an overview of recent advancements in the research of fluorinated polymers,highlighting the development of synthetic strategies for novel fluorinated polymers and their diverse applications in various *** fluorinated polyolefins can be modified through chemical methods to produce functional *** of fluorinated olefins with non-fluorinated monomers effectively addresses synthesis challenges,yielding main-chain fluoro-containing polymers with specific functional ***,recent studies have revealed that free radical(co)polymerization of fluorinated(meth)acrylate monomers leads to new fluorinated polymers with enhanced solubility,processability,and structural *** on these new synthetic strategies,a range of fluorinated polymer materials has been developed for a multitude of applications,including flexible electrodes,alternating current(AC)electroluminescent devices,energy storage capacitors,triboelectric nanogenerators,and lithium *** their customized structures and excellent properties,fluorinated polymers hold significant promise to uncover more potential applications in the era of flexible and wearable electronics.

关键词： fluorinated polymers fluorinated monomers flexible electronic device lithium batteries triboelectric nanogenerator

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Synthesis and Antibacterial Activity of Selenium-functionalized Poly(ε-caprolactone)

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Chinese Journal of Polymer Science 2022年第1期40卷 67-74页

作者： Ying-Ying Li Dong Xing Xiang-Qiang Pan Jian Zhu Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationState and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsDepartment of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

A selenium-functionalizedε-caprolactone was synthesized by introducing a phenyl selenide group at the 7-position.A polymer was obtained through the ring-opening polymerization of this monomer in a base/thiourea binary organocatalytic system.A living polymerization process was achieved under mild *** resulting polymers had a controlled molecular weight with a narrow molecular weight distributions and high end-group *** copolymers could be obtained by copolymerizing this monomer withε-*** thermal degradation temperature of the obtained copolymers decreased with the increasing molar ratio of selenide functionalized monomer in copolymers,while the glass transition temperature *** addition,the phenyl selenide side group could be further modified to a polyselenonium salt,which resulted in a polymer with good antibacterial *** survival rate of *** and *** was only 9%with a polymer concentration of 62.5μg/mL.

关键词： Selenium-containing polyester Polycations Antibacterial activity Degradable

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Reversible CO_(2)-, Photo-and Thermo-Triple Responsive Supramolecular Chirality of Azo-containing Block Copolymer Assemblies Prepared by Polymerization-induced Chiral Self-assembly

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Chinese Journal of Polymer Science 2022年第1期40卷 56-66页

作者： Ya-Jing Sun Xiao-Xiao Cheng Teng-Fei Miao Hao-Tian Ma Wei Zhang Xiu-Lin Zhu Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application State and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou Industrial ParkSuzhou 215123China

Polymerization-induced chiral self-assembly(PICSA)is an efficient strategy that not only allows the construction of the supramolecular chiral assemblies in a controlled manner but also can regulate the morphology in ***,a series of azobenzene-containing block copolymer(Azo-BCP)assemblies with tunable morphologies and supramolecular chirality were obtained through the PICSA *** supramolecular chirality of Azo-BCP assemblies could be regulated by carbon dioxide(CO_(2))stimulus,and completely recovered by bubbling with Ar.A reversible morphology transformation and chiroptical switching process could also be achieved by the alternative 365 nm UV light irradiation and heatingcooling ***,the supramolecular chirality is thermo-responsive and a reversible chiral-achiral switching was successfully realized,which can be reversibly repeated for at least five *** work provides a feasible strategy for constructing triple stimuli-responsive supramolecular chiral nano-objects in situ.

关键词： Supramolecular chirality Polymerization-induced self-assembly Azobenzene CO_(2)responsiveness

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Piezoelectrically Mediated Reactions:From Catalytic Reactions to Organic Transformations

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Chinese Journal of Chemistry 2023年第1期41卷 111-128页

作者： Ziye Ren Yuhao Peng Hanliang He Chengqiang Ding Jialin Wang Zhao Wang Zhengbiao Zhang 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 UniversitySuzhouJiangsu 215123China Suzhou Medical College Soochow UniversitySuzhouJiangsu 215123China The Department of Orthopedic Surgery Dushu Lake Hospital Affiliated to Soochow UniversitySuzhouJiangsu 215123China State Key Laboratory of Radiation Medicine and Protection Soochow UniversitySuzhouJiangsu 215123China

Recently,piezocatalysis has attracted considerable attention as a new type of renewable mechanical energy conversion technology,which relies on the strain induced polarization of the piezoelectric *** new technology has been extensively applied in the applications of water splitting,water remediation,gas purification and tumor *** the rapid development in the piezo-catalysis,the utilization of piezoelectric materials for synthetic purpose is still under *** means to promote or-ganic reactions expand the scope of piezoelectrically mediated reactions and show successes in both organic and polymer ***,we provide a comprehensive review on recent progress of piezoelectrically mediated reactions,catalytic mechanisms and applications in the last few *** limitations and future directions of this area are also *** believe this review will provide new insights into the underlying mechanism of piezoelectric mediated electron transfer process and guide the design of new chemistry.

关键词： Piezocatalysis Heterogeneous catalysis Mechanical energy Polymerization Organic synthesis Water spilling Tumor therapy Mechanoredox Piezoelectric material

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Recent advances in the chemical recycling of polyesters

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Fundamental Research 2025年第3期5卷 935-950页

作者： Wang, Sheng Li, Jing Li, Xiaohong Tu, Yingfeng Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China Key Laboratory of Ionic Rare Resources and Environment of Ministry of Natural Resources Jiangxi College of Applied Technology Ganzhou 341000 China

Whilst polymers have played a significant role in the development of modern society, a rapid growth of polymer waste is disadvantageously influencing communities and ecosystems across the world. Constructing a closed-loop life cycle of polymer materials is urgently in demand. Chemical recycling of polyesters, which can be recovered to the pristine monomers or transformed to other value-added products, has been considered as an appealing recycling approach to circular polymer economy and attracted enormous attention in the last several years. This review highlights some recent progress in the chemical recycling of diverse polyesters, including commercialized poly(lactic acid), poly(ε-caprolactone), poly(ethylene terephthalate), as well as various novel chemically recyclable polyesters and polycarbonates. Eventually, based on these technological developments, we discuss the remaining challenges and identify promising research opportunities, providing insights into future directions for achieving a genuine closed-loop polymer economy. © 2024

关键词： Catalysis Chemical recycling Circular polymer economy Cyclic monomers Depolymerization Polyesters

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埋底界面增韧助力实现机械稳定和高效的宽带隙柔性钙钛矿太阳能电池（英文）

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Science China Materials 2025年第5期68卷 1415-1423页

作者：曹建磊陈炜杰赵晨荔徐佳诚郑佳磊亢帅青朱娟章建东李耀文 Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow University State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University

柔性宽带隙钙钛矿太阳能电池具有构筑高效叠层太阳能电池的独特优势.具有低温加工和优异稳定性的氧化镍是制备柔性宽带隙钙钛矿太阳能电池的理想空穴传输层.然而,钙钛矿埋底界面存在大量缺陷以及氧化镍和钙钛矿界面结合力较弱,严重影响... 详细信息

柔性宽带隙钙钛矿太阳能电池具有构筑高效叠层太阳能电池的独特优势.具有低温加工和优异稳定性的氧化镍是制备柔性宽带隙钙钛矿太阳能电池的理想空穴传输层.然而,钙钛矿埋底界面存在大量缺陷以及氧化镍和钙钛矿界面结合力较弱,严重影响了柔性器件的效率和机械稳定性.我们通过引入多功能分子N-乙酰-L-谷氨酸(NALG)开发了一种埋底界面修饰策略来解决上述问题.理论计算和实验结果表明NALG分子的羧基和酰胺可以分别与氧化镍和钙钛矿结合,能够钝化界面缺陷以及增强钙钛矿的结晶.更重要的是, NALG作为桥连分子大幅增强氧化镍和钙钛矿的界面韧性.最终,柔性宽带隙钙钛矿太阳能电池实现了16.28%的能量转化效率.同时,柔性器件表现出优异的机械稳定性,循环弯曲10000次仍能保持初始效率的83%(弯曲半径为5 mm).器件也具有优越的长期运行稳定性和湿热稳定性.

关键词： wide-bandgap perovskite flexible perovskite solar cells buried interface defect passivation mechanical stability

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Host-Guest Active Layer Enabling Annealing-Free,Nonhalogenated Green Solvent Processing for High-Performance Organic Solar Cells

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Chinese Journal of Chemistry 2022年第24期40卷 2963-2972页

作者： Weiwei Sun Haiyang Chen Ben Zhang Qinrong Cheng Heyi Yang Ziyuan Chen Guang Zeng Junyuan Ding Weijie Chen Yaowen Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu215123 China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhouJiangsu215123 China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu215123 China

Recent advances in non-fullerene acceptors(NFAs)like Y6 have pushed the power conversion efficiencies(PCEs)of organic solar cells(OSCs)above 19%.However,the harsh fabrication conditions,such as the use of the highly volatile chloroform(CF)solvent and the thermal annealing process,are not suitable for large-area printing technologies and environmental ***,a series of guest molecules,BT2O,BTO,and BT4O,are designed and synthesized with different numbers of oligo ethylene glycol(OEG)repeating units in side *** these guest molecules could tune the crystallization kinetics of the annealing-free host-guest active layers by inducing the self-assembly of Y6 in non-halogenated paraxylene(PX)*** increasing number of OEG repeating units in guest molecules could enhance the molecular assembly ability but molecular stacking steric hindrance ***,BTO with three OEG repeating units blended with PM6:PM7:Y6 delivers the highest PCE of 17.78%.Our results demonstrate controlling the crystallization kinetics via delicate side-chain engineering of guest molecules is an effective way to achieve efficient OSCs in non-halogenated solution.

关键词： Organic solar cells Host-guest systems Crystal engineering Annealing-free Nonhalogenated green solvent

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Induction and modulation of supramolecular chirality in side-chain azobenzene polymers through the covalent chiral domino effect

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Science China Chemistry 2021年第12期64卷 2105-2110页

作者： Lu Yin Meng Liu Haotian Ma Xiaoxiao Cheng Tengfei Miao Wei Zhang Xiulin Zhu Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationState and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China

Induction,transfer,and modulation of intriguing supramolecular chirality were achieved in a chiral domino-type polymer system using a chiralα-end azobenzene(Azo)moiety as one chiral terminus and achiral Azo repeating units as building *** Azo polymers prepared by atom transfer radical polymerization were imparted with well-controlled chain lengths and a chiral moiety at a well-defined *** chiral terminus can effectively dictate the helical orientation of the achiral Azo stacks in the aggregation *** spacer length between the chiral residue and the achiral repeating units dominates the preferred handedness of the side-chain Azo *** instance,the R-configuration moiety with a short alkyl chain(with 0,2,and 3 carbons)induces right-handed supramolecular chirality,whereas those with long alkyl chains(with 4,5,and 6 carbons)induce the opposite helical orientation of the Azo ***,the chiral regulation of polymer aggregates is successfully achieved using the unique photoisomerization transition of the Azo chromophore and the heat-assisted reassembly *** induction and chiral-to-achiral communication are further verified via theoretical simulations.

关键词： covalent chiral domino effect supramolecular chirality azobenzene polymer chiral induction chiral modulation

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