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Self-healing polymeric Hydrogels:Toward Multifunctional Soft Smart materials

Chinese Journal of Polymer Science 2021年第10期39卷 1262-1280,I0006页

作者： Xiao-Ling Zuo Shao-Fan Wang Xiao-Xia Le Wei Lu Tao Chen College of Materials Science and Engineering Guizhou Minzu UniversityGuiyang 550025China Key Laboratory of Bio-Based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo 315201China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China

The concept of self-healing that involves a built-in ability to heal in response to damage wherever and whenever it occurs in a material,analogous to the healing process in living organisms,has emerged a couple of decades *** primarily by the demands for life-like materials and soft smart materials,therefore,the development of self-healing polymeric hydrogels has continually attracted the attention of the scientific ***,this review is intended to give an in-depth overview of the state-of-the-art advances in the field of self-healing polymeric ***,recently emerging trends in self-healing polymeric hydrogels are summarized,and notably,recommendations to endow these hydrogels with fascinating multi-functionalities including luminescence,conductivity/magnetism and shape memory etc are *** close,the current challenges and future opportunities in this field are also discussed.

关键词： polymeric hydrogels Self-healing Multi-functionalities Smart materials

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Three-dimensional macroscopic absorbents: From synergistic effects to advanced multifunctionalities

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Nano Research 2024年第3期17卷 1952-1983页

作者： Shijie Zhang Di Lan Xingliang Chen Yueyuan Gu Junwen Ren Suxuan Du Shichang Cai Xiaomiao Zhao Zhiwei Zhao Guanglei Wu School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province Shaoxing UniversityShaoxing 312000China School of Resources Environment and Safety Engineering University of South ChinaHengyang 421001China College of Electrical Engineering Sichuan UniversityChengdu 610065China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationSchool of Electrical&Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China

The accelerated arriving of 5G era has brought a new round of intelligent transformation which will completely emancipate smart terminal *** the subsequent deleterious effect of electromagnetic wave on electronic devices is increasingly serious,driving the growth of next-generation electromagnetic wave *** a tactful combination of components and structures,three-dimensional(3D)macroscopic absorbents with fascinating synergy afford exceptional electromagnetic wave absorption,and tremendous efforts have been devoted to this ***,in terms of macroscopic absorbents and their synergistic effect,few reviews are proposed to comb the latest achievements and detailed *** review article focuses on the synergistic effect of macro-architectured absorbents mainly including structure-induced synergy,structure-components synergy,and multiple-components induced *** then the potential construction principles and strategies of macroscopic absorbents are ***,the key information for structures and components manipulation including nano-micro design and components regulation is further dissected by critically selected cutting-edge 3D macroscopic ***,a brief summary of multifunctional electromagnetic wave absorbents(EWAs)-based macroscopic structures is ***,the development prospects and challenges of these materials are discussed.

关键词： three-dimensional(3D)structures synergistic effect electromagnetic wave absorption absorption mechanism multifunction

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Improvement in Toughness of Poly(ethylene 2,5-furandicarboxylate) by Melt Blending with bio-based Polyamide11 in the Presence of a Reactive Compatibilizer

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Chinese Journal of Polymer Science 2020年第10期38卷 1099-1106页

作者： Yong Yang An-Ping Tian Ya-Jin Fang Jing-Gang Wang Jin Zhu Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Weihai Honglin Electronic Technology CO. LTD

The objective of this study was to improve the toughness of bio-based brittle poly(ethylene 2,5-furandicarboxylate)(PEF) by melt blending with bio-based polyamide11(PA11) in the presence of a reactive multifunctional epoxy compatibilizer(Joncryl ADR?-4368).The morphological,thermal,rheological,and mechanical properties of PEF/PA1 1 blends were *** with neat PEF,the toughness of PEF/PA11 blend was not improved in the absence of the reactive compatibilizer due to the poor compatibility between the two *** Joncryl was incorporated into PEF/PA1 1 blends,the interfacial tension between PEF and PA1 1 was obviously reduced,reflecting in the fine average particle size and narrow distribution of PA11 dispersed phase as observed by scanning electron microscopy(SEM).The complex viscosities of PEF/PA11 blends with Joncryl were much higher than that of PEF/PA11 blend,which could be ascribed to the formation of graft copolymers through the epoxy groups of Joncryl reacting with the end groups of PEF and PA11 molecular ***,the compatibility and interfacial adhesion between PEF and PA11 were greatly improved in the presence of *** compatibilized PEF/PA11 blend with 1.5 phr Joncryl exhibited significantly improved elongation at break and unnotch impact strength with values of 90.1% and 30.3 kJ/m2,respectively,compared with those of 3.6% and 3.8 kJ/m2for neat PEF,*** work provides an effective approach to improve the toughness of PEF which may expand its widespread application in packaging.

关键词： Poly(ethylene 2,5-furandicarboxylate) Polyamide11 bio-based polymers Reactive compatibilization Toughening

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2,5-Furandicarboxylic acid production via catalytic oxidation of 5-hydroxymethylfurfural:Catalysts,processes and reaction mechanism

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Journal of Energy Chemistry 2021年第3期30卷 528-554页

作者： Chunlin Chen Lingchen Wang Bin Zhu Zhenqiang Zhou Soliman I.El-Hout Jie Yang Jian Zhang Ningbo Institute of Materials Technology&Engineering CAS1219 Zhongguan West RoadNingbo 315201ZhejiangChina University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo 315201ZhejiangChina Nano Science and Technology Institute University of Science and Technology of China166 Renai RoadSuzhou 215123JiangsuChina Nanomaterials and Nanotechnology Department Advanced Materials DivisionCentral Metallurgical Research and Development Institute CMRDIHelwan 11421Egypt

biomass conversion to value-added chemicals has received tremendous attention for solving global warming issues and fossil fuel depletion.5-Hydroxymethylfurfural(HMF)is a key bio-based platform molecule to produce many useful organic chemicals by oxidation,hydrogenation,polymerization,and ring-opening *** all derivatives,the oxidation product 2,5-furandicarboxylic acid(FDCA)is a promising alternative to petroleum-based terephthalic acid for the synthesis of biodegradable *** review analytically discusses the recent progress in the thermocatalytic,electrocatalytic,and photocatalytic oxidation of HMF into FDCA,including catalyst screening,synthesis processes,and reaction *** fundamental advances may be possible in non-precious metal and metal-free catalysts that are highly efficient under the base-free conditions,and external field-assisted processes like electrochemical or photoelectrochemical cells.

关键词： 5-Hydroxymethylfurfural 2,5-Furandicarboxylic acid Catalytic oxidation Mechanism

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Synthesis of pyrrolidone-based copolyesters with enhanced glass transition temperatures and abiotic hydrolysability

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Polymer Degradation and Stability 2025年 239卷

作者： Chen, Weiqi Zhu, Hanxu Hu, Han Luan, Qingyang Jiang, Qi Liang, Peng Hu, Linyi Feng, Jie Wang, Jinggang Zhu, Jin College of Materials Science and Engineering Zhejiang University of Technology Hangzhou310014 China Key Laboratory of Bio-Based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China University of Chinese Academy of Sciences Beijing 100049 China Urology & Nephrology Center Department of Urology Zhejiang Provincial People's Hospital Affiliated People's Hospital Hangzhou Medical College Zhejiang Hangzhou China

Most degradable polymers are utilized in applications below 100 °C. Developing materials with high thermal performance (specifically high glass transition temperature) is critical to expanding their application range. Here, N,N′-trans-1,4-cyclohexane-bis (pyrrolidone-4-methyl carboxylate) (T-CBPMC), a tricyclic diester, was prepared via Michael addition-cyclization of renewable feedstocks and further used as a monomer to synthesize poly (ethylene-co-cyclohexanedimethylene-1,4-cyclohexane-bis (pyrrolidone-4-methyl carboxylate)) (PECP) copolyesters, with 1,4-cyclohexanedimethanol (CHDM) molar content ranging from 0 % to 95 % relative to the total diol. The copolymerization of ethylene glycol (EG) significantly accelerated chain length, yielding PECP copolyesters with number average molecular weight (Mn) ranging from 29.1 kDa to 48.4 kDa. The T-CBPMC units effectively enhanced the glass transition temperature (119–133 °C) and crystallization property of PECP, endowing it with superior thermal properties. Furthermore, the pyrrolidone ring exhibits outstanding ultraviolet shielding efficacy. Despite their steric hindrance, pyrrolidone rings also conferred hydrophilicity to the polymer. PECP copolymers exhibited adjustable hydrolysis rate at room temperature, by varying the CP compositions, with weight loss varying from 5 % to 68 % after 60 days. Structural, morphological, and molecular weight analyses after hydrolysis revealed that cleavage preferentially occurred at the ester bonds linking T-CBPMC and EG. Combining rigid T-CBPMC and CHDM with EG provided a better balance, the CP segments enhanced the Tg and crystallization capabilities of the polyester, whereas the EP segments imparted hydrolysability. © 2025 Elsevier Ltd

关键词： Chain length

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Versatile Levulinic Acid-Derived Dynamic Covalent Thermosets Enabled by in Situ Generated Imine and Multiple Hydrogen Bonds

SSRN

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SSRN 2022年

作者： Liu, Yanlin Yu, Zhen Lu, Guangming Chen, Wanding Ye, Zixian He, Yueran Tang, Zhaobin Zhu, Jin Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Laboratory of Polymers and Composites Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China University of Chinese Academy of Sciences Beijing100049 China

bio-based dynamic covalent thermosets have attracted extensive attention as they are expected to break conventional thermosets' reliance on fossil resources and address the recycling issue after disposal. However, there has always been a contradiction between using bio-based feedstocks and possessing high properties, as well as a conflict between high performance and rapid recycling (reprocessing and degradation). In this work, a simple approach was developed to prepare bio-based thermosets with high performance, rapid reprocessing, high flame retardancy, and antibacterial properties enabled by in-situ generated dynamic covalent imine (Schiff base) bonds and multiple hydrogen bonds. The levulinic acid epoxy (ELA) was successfully synthesized and cured with 2-(4-aminophenyl)-1H-benzimidazol-5-amine (BIA) containing benzimidazole structures. The high concentration of Schiff bases and multiple hydrogen bonds of ELA-BIA endowed it with high glass transition temperature and mechanical properties, as well as satisfactory catalyst-free malleability, rapid reprocessing and repairing. Furthermore, due to the combined effect of the in-situ Schiff base and benzimidazole structure, ELA-BIA exhibited excellent condensed phase char formation ability, resulting in intrinsic flame retardancy with a limiting oxygen index of 33.8% and a UL-94 V-0 rating, both of which were significantly higher than 4, 4′-diaminodiphenyl methane (DDM) cured ELA or DDM cured bisphenol A epoxy. Moreover, the Schiff bases bonded in the networks provided 100% of the intrinsic antibacterial rates. This work provides a feasible and simple strategy for the preparation of high-performance and versatile bio-based dynamic covalent thermosets. © 2022, The Authors. All rights reserved.

关键词： Hydrogen bonds

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Editing the Shape Morphing of Monocomponent Natural Polysaccharide Hydrogel Films

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Research 2021年第1期2021卷 835-846页

作者： Hao Hu Chao Huang Massimiliano Galluzzi Qiang Ye Rui Xiao Xuefeng Yu Xuemin Du Institute of Biomedical&Health Engineering Shenzhen Institute of Advanced Technology(SIAT)Chinese Academy of Sciences(CAS)Shenzhen 518035China Key Laboratory of Polymeric Materials and Application Technology of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationSchool of ChemistryXiangtan UniversityXiangtan 411105China Institute of Advanced Materials Science and Engineering Shenzhen Institute of Advanced Technology(SIAT)Chinese Academy of Sciences(CAS)Shenzhen 518035China State Key Laboratory of Fluid Power&Mechatronic System Key Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceDepartment of Engineering MechanicsZhejiang UniversityHangzhou 310027China

Shape-morphing hydrogels can be widely used to develop artificial muscles,reconfigurable biodevices,and soft ***,conventional approaches for developing shape-morphing hydrogels highly rely on composite materials or complex manufacturing techniques,which limit their practical ***,we develop an unprecedented strategy to edit the shape morphing of monocomponent natural polysaccharide hydrogel films via integrating gradient cross-linking density and geometry *** to the synergistic effect,the shape morphing of chitosan(CS)hydrogel films with gradient cross-linking density can be facilely edited by changing their geometries(length-to-width ratios or thicknesses).Therefore,helix,short-side rolling,and longside rolling can be easily ***,various complex artificial 3D deformations such as artificial claw,horn,and flower can also be obtained by combining various flat CS hydrogel films with different geometries into one system,which can further demonstrate various shape transformations as triggered by *** work offers a simple strategy to construct a monocomponent hydrogel with geometry-directing programmable deformations,which provides universal insights into the design of shape-morphing polymers and will promote their applications in biodevices and soft robotics.

关键词： effect linking geometry

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Breakthroughs in the Melt Polycondensation of Oxalic Acid-based Polyesters with Great Potential in Curbing Marine Plastic Pollution

SSRN

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SSRN 2023年

作者： Luan, Qingyang Hu, Han Jiang, Xiaoyu Lin, Chen Zhang, Xiaoqin Wang, Qianfeng Dong, Yunxiao Wang, Jinggang Zhu, Jin Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China University of Chinese Academy of Sciences Beijing100049 China Cambridge A Level Center Zhenhai High School of Zhejiang No.32 Gulou East Road Zhenhai Ningbo315200 China

Marine plastic pollution, with annual emissions into the marine over 53 million metric tons, has been a worldwide concern. Many of so-called "biodegradable" polymers degrade very slowly in seawater. Oxalates attract attention because the electron-withdrawing effect of adjacent ester bonds promotes their natural hydrolysis, particularly in the ocean. However, the low boiling point and poor thermal stability of oxalic acid severely limits its polymerization and applications. The successful synthesis of light-colored poly (butylene oxalate-co-succinate) (PBOS) copolyesters, with weight average molecular weight higher than 1*105 g/mol, displays the breakthroughs in the melt polycondensation of oxalic acid-based copolyesters. The copolymerization of oxalic acid retains the crystallization rate of PBS, with minimum half-crystallization times from 16s (PBO10S) to 48s (PBO30S). PBO10S-PBO40S exhibits good mechanical properties with elastic modulus of 218-454 MPa, and tensile strength between 12-29 MPa, better than packaging materials such as biodegradable PBAT and non-degradable LLDPE. PBOSs achieve rapid degradation in the marine environment, with a mass loss 8%-45% after 35 days. The characterization of structural changes demonstrated that the introduced oxalic acid plays a key role in the process of seawater degradation. This new class of polymers therefore provides highly promising materials for sustainable packaging with unique seawater degradation properties. © 2023, The Authors. All rights reserved.

关键词： Tensile strength

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Interfacial synthesis of crystalline quasi-two-dimensional polyaniline thin films for high-performance flexible on-chip micro-supercapacitors

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Chinese Chemical Letters 2022年第8期33卷 3921-3924页

作者： Tao Zhang Panpan Zhang Zhongquan Liao Faxing Wang Jinhui Wang Mingchao Wang Ehrenfried Zschech Xiaodong Zhuang Oliver G.Schmidt Xinliang Feng Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo 315201China Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden 01062Germany Center for Advancing Electronics Dresden(cfaed) Technische Universität DresdenDresden 01062Germany Fraunhofer Institute for Ceramic Technologies and Systems(IKTS) Dresden 01109Germany Material Systems for Nanoelectronics Chemnitz University of TechnologyChemnitz 09107Germany Institute for Integrative Nanosciences IFW DresdenDresden 01069Germany School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Special Functional Materials of Ministry of Education Henan UniversityKaifeng 475004China

Quasi-two-dimensional(q2 D)conducting polymer thin film synergizes the advantageous features of longrange molecular ordering and high intrinsic conductivity,which are promising for flexible thin film-based micro-supercapacitors(MSCs).Herein,we present the high-performance flexible MSCs based on highly ordered quasi-two-dimensional polyaniline(q2 D-PANI)thin film using surfactant monolayer assisted interfacial synthesis(SMAIS).Owing to high electrical conductivity,rich redox chemistry,and thin-film morphology,the q2 D-PANI MSCs show high volumetric specific capacitance(ca.360 F/cm^(3))and energy density(17.9 m Wh/cm^(3)),which outperform the state-of-art PANI thin-film based MSCs and promise for future flexible electronics.

关键词： 2D polymers Conducting polymers Interfacial synthesis Flexible electronics Microsupercapacitor

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Formation of Hydroxyl-Rich Carbon Layer Coated Silica Microspheres and its application to Enhance Hydrolysis of Cellulose to Sugar

SSRN

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SSRN 2022年

作者： Tao, Yuhong Geng, Maofu Zhang, Zhenyu Dai, Yuewen Liu, Fei Na, Haining Zhu, Jin Key Laboratory of Bio-Based Polymeric Materials of Zhejiang Province Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Zhejiang Ningbo315201 China University of Chinese Academy of Sciences Beijing100049 China

The formation of hydroxyl-rich carbon layer coated silica microspheres ( SiO 2 -NH 2 @C) under hydrothermal carbonization (HTC) conditions is demonstrated for the catalytic hydrolysis of regenerated cellulose to sugar. The driving factors for the formation of the SiO 2 -NH 2 @C and the different morphologies are investigated through the surface amino modification of silica and the control of the carbon source concentration during the HTC cladding process. The surface silica atom content after hydrothermal treatment of unmodified and modified silica is 14.24% versus 1.17% respectively. This shows the introduction of amino groups can drive the formation of the carbon layer coated structure through electrostatic interactions. As can be seen from the SEM and TEM images, 2 nd HTC and adjustment of the concentration of the carbon source can control the morphology of the SiO 2 -NH 2 @C. With the strong adsorption between the hydroxyl-rich hydrothermal carbon outer layer and the cellulose, it is possible to hydrolyze 96.4% of the regenerated cellulose to glucose under pure aqueous phase ultra-dilute acid conditions, with a glucose yield of 75.8%. A clearer understanding of the driving factors and control conditions for the formation of the hydroxyl-rich SiO 2 -NH 2 @C structure is provided, along with a more definite direction for the preparation of similar nanomaterials. © 2022, The Authors. All rights reserved.

关键词： Hydrolysis

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