Chinese Journal of Polymer Science最新文献

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A Composite Elastomer with Photo-responsive Shape Memory and Programmable Hygroscopic Actuation Functionalities 一种具有光响应形状记忆和可编程吸湿致动功能的复合弹性体
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-09-02 DOI: 10.1007/s10118-024-3187-4
Xiang-Xi Cui, Li Shang, Zhong-Wen Liu, Zhao-Tie Liu, Jin-Qiang Jiang, Guo Li
{"title":"A Composite Elastomer with Photo-responsive Shape Memory and Programmable Hygroscopic Actuation Functionalities","authors":"Xiang-Xi Cui,&nbsp;Li Shang,&nbsp;Zhong-Wen Liu,&nbsp;Zhao-Tie Liu,&nbsp;Jin-Qiang Jiang,&nbsp;Guo Li","doi":"10.1007/s10118-024-3187-4","DOIUrl":"10.1007/s10118-024-3187-4","url":null,"abstract":"<div><p>Developing hydroscopic actuators with simultaneous high elasticity, shape programmability and tunable actuating behaviors are highly desired but still challenging. In this study, we propose an orthogonal composite design to develop such a material. The developed composite elastomer comprises carboxyl group-grafted polystyrene-block-poly(ethylene-<i>co</i>-butylene)-block-polystyrene (SEBS-<i>g</i>-COOH) as the elastic substrate, and a synthesized azobenzene derivative as the functional filler (Azo12). By surface treatment using acidic and base solutions, the carboxyl groups on the surface can reversibly transform into carboxylate groups, which render the composite tunable hygroscopic actuating functionality. On another aspect, the added filler undergoes <i>trans</i>-to-<i>cis</i> isomerization when exposed to UV light irradiation, leading to liquefaction of the crystalline aggregates formed by Azo12 molecules. The liquefied Azo12 molecules can autonomously resotre their trans form and reform the crystalline structure. This reversible change in crystralline structure is utilized to realize the shape memory property, and 5 wt% of Azo12 addition is adequate for the composite to exhibit photo-responsive shape memory behavior without compromising much of the elasricity. The regualtion of external geometry by shape memory effect is effective in altering the actuating behavior. The proposed method can be extend to designing different composites with the demonstrated functionalities.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1470 - 1478"},"PeriodicalIF":4.1,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linear Viscoelasticity of ABA-type Vitrimer Based on Dioxaborolane Metathesis 基于二氧杂硼烷 Metathesis 的 ABA 型 Vitrimer 的线性粘弹性
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-09-02 DOI: 10.1007/s10118-024-3184-7
Shi-Long Wu, Huan-Huan Yang, Quan Chen
{"title":"Linear Viscoelasticity of ABA-type Vitrimer Based on Dioxaborolane Metathesis","authors":"Shi-Long Wu,&nbsp;Huan-Huan Yang,&nbsp;Quan Chen","doi":"10.1007/s10118-024-3184-7","DOIUrl":"10.1007/s10118-024-3184-7","url":null,"abstract":"<div><p>In this study, we synthesized a series of ABA-type vitrimers by crosslinking the short A moieties of precursors with a bifunctional crosslinker and evaporating the small molecular byproduct. The vitrimer samples thus prepared exhibit linear viscoelasticity dependent on the length of A moiety as well as the content of the crosslinks. When the average number of A monomers per end moiety <i>m</i>=1.1, the crosslinker can only extend the chain but not crosslink the chain. When <i>m</i> becomes 2.8 or higher, introducing a crosslinker first leads to the gelation, whereas excess in crosslinker molecules leads opening of the crosslinking sites and accordingly reentry into the sol regime. Surprisingly, a further increase in the length of the A moieties increases the relaxation time much weaker than the exponential increase seen for the physically crosslinked ABA-type ionomers. We attribute this difference to the distinct relaxation mechanisms: the relaxation of the vitrimer samples is based on relatively independent exchange reactions, which contrasts with the ABA-type ionomers that relax through the collective hopping of connected ionic groups from one ion aggregate to another.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1495 - 1504"},"PeriodicalIF":4.1,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polymer-to-Monomers Chemically Recyclable Poly(imide-imine) Plastics with Extreme-Condition Resistance and Flame Retardancy 具有极端条件耐受性和阻燃性的聚合物-单体化学可回收聚(亚胺-亚胺)塑料
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-09-02 DOI: 10.1007/s10118-024-3199-0
Zhen-Yu Wang, Xiao-Kong Liu
{"title":"Polymer-to-Monomers Chemically Recyclable Poly(imide-imine) Plastics with Extreme-Condition Resistance and Flame Retardancy","authors":"Zhen-Yu Wang,&nbsp;Xiao-Kong Liu","doi":"10.1007/s10118-024-3199-0","DOIUrl":"10.1007/s10118-024-3199-0","url":null,"abstract":"<div><p>Polyimides are a family of high-tech plastics that have irreplaceable applications in the fields of aerospace, defense, and opto-electronics, but polyimides are difficult to be reprocessed and recycled at the end of their service life, resulting in a significant waste of resources. Hence, it is of great significance to develop recyclable polyimides with comparable properties to the commercial products. Herein, we report a novel polymer-to-monomers chemically recyclable poly(imide-imine) (PtM-CR-PII) plastic, synthesized by cross-linking the amine-terminated aromatic bisimide monomer and the hexa-vanillin terminated cyclophosphazene monomer via dynamic imine bonds. The PtM-CR-PII plastic exhibits comparable mechanical and thermal properties as well as chemical stability to the commercial polyimides. The PtM-CR-PII plastic possesses a high Young’s modulus of ≈3.2 GPa and a tensile strength as high as ≈108 MPa, which also exhibits high thermal stability with a glass transition temperature of ≈220 °C. Moreover, the PtM-CR-PII plastic exhibits outstanding waterproofness, acid/alkali-resistance, and solvent-resistance, its appearance and mechanical properties can be well maintained after long-term soaking in water, highly concentrated acid and base, and various organic solvents. Furthermore, the cyclophosphazene moieties endow the PtM-CR-PII plastic with excellent flame retardancy. The PtM-CR-PII plastic exhibits the highest UL-94 flame-retarding rating of V-0 and a limiting oxygen index (LOI) value of 45.5%. Importantly, the PtM-CR-PII plastic can be depolymerized in an organic solvents-acid mixture medium at room temperature, allowing easy separation and recovery of both monomers in high purity. The recovered pure monomers can be used to regenerate new PtM-CR-PII plastics, enabling sustainable polymer-monomers-polymer circulation.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1525 - 1535"},"PeriodicalIF":4.1,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amine-Actuated Catalyst Switch for One-Pot Synthesis of Ether-Ester Type Block Copolymers 用于醚酯型嵌段共聚物一锅合成的胺促动催化剂开关
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-30 DOI: 10.1007/s10118-024-3193-6
Hong Qiu, Peng-Fei Zhang, Jun-Peng Zhao
{"title":"Amine-Actuated Catalyst Switch for One-Pot Synthesis of Ether-Ester Type Block Copolymers","authors":"Hong Qiu,&nbsp;Peng-Fei Zhang,&nbsp;Jun-Peng Zhao","doi":"10.1007/s10118-024-3193-6","DOIUrl":"10.1007/s10118-024-3193-6","url":null,"abstract":"<div><p>Organocatalysis has shown special potency for simplifying the construction of complex polymer structures. We are reporting here a one-pot synthetic pathway using amine as a selectivity-switching agent in the two-component catalytic system consisting of triethylborane (Et<sub>3</sub>B) and a phosphazene base. We first modelled the interactions of a variety of amines with Et<sub>3</sub>B by density functional theory calculations. The results indicate that the aliphatic diamines comprising both primary and tertiary amino groups, capable of forming stable intramolecular hydrogen bonds, undergo the strongest complexation with Et<sub>3</sub>B. Accordingly, experimental results demonstrate that the addition of such amines promptly actuates the <i>in situ</i> selectivity switch from Lewis pair-catalyzed ring-opening polymerization (ROP) of epoxide (propylene oxide, <i>n</i>-butylglycidyl ether, or glycidyl phenyl ether) to organobase-catalyzed ROP of <i>δ</i>-valerolactone, allowing one-pot continuous synthesis of ether-ester type block copolymers. We thus exploited the noncovalent interaction between amine and Et<sub>3</sub>B to refine the catalyst switch strategy by exempting it from loading of extra catalyst.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 12","pages":"1925 - 1932"},"PeriodicalIF":4.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Room-temperature Self-healing and Recyclable PDMS Elastomers with Superior Mechanical Properties for Triboelectric Nanogenerators 室温自愈合和可回收 PDMS 弹性体具有优异的机械性能,可用于三电纳米发电机
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-28 DOI: 10.1007/s10118-024-3178-5
Shu-Juan Wang, Lu Wang, Hong-Zhe Su, Zhi-Cheng Wu, Qiao-Gen Zhang, Wei Fan, Xin-Li Jing
{"title":"Room-temperature Self-healing and Recyclable PDMS Elastomers with Superior Mechanical Properties for Triboelectric Nanogenerators","authors":"Shu-Juan Wang,&nbsp;Lu Wang,&nbsp;Hong-Zhe Su,&nbsp;Zhi-Cheng Wu,&nbsp;Qiao-Gen Zhang,&nbsp;Wei Fan,&nbsp;Xin-Li Jing","doi":"10.1007/s10118-024-3178-5","DOIUrl":"10.1007/s10118-024-3178-5","url":null,"abstract":"<div><p>Polydimethylsiloxane (PDMS) is an electron-withdrawing material that is widely used in triboelectric nanogenerators (TENGs). However, PDMS has poor mechanical properties after curing and is easily damaged when subjected to long-term workloads. Thus, the long-term stable operation of TENGs under mechanical deformation cannot be guaranteed. In this work, multiple hydrogen bonds and aromatic disulfide bonds were introduced into PDMS elastomers. These elastomers exhibited high toughness (a tensile strength of 1.91 MPa and an elongation at break of 340%), good recyclability, and room-temperature self-healing properties (healing efficiency of 96.4% in 24 h). Recyclable sandwich-like triboelectric nanogenerators with excellent electrical output performance (13.5 V) and room-temperature self-healing performance (24 h, 98% recovery of self-generating performance) were prepared by utilizing the hydrogen bonding between the PDMS elastomer and MXene. The work reported herein offers theoretical guidance and a compelling strategy for developing high-performance TENG negative friction layers.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1566 - 1577"},"PeriodicalIF":4.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tough Polymeric Hydrogels Based on Amino Acid Derivative Mediated Dynamic Metal Coordination Bonds 基于氨基酸衍生物介导的动态金属配位键的韧性聚合物水凝胶
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-28 DOI: 10.1007/s10118-024-3177-6
Meng Li, Meng-Yuan Zhang, Wu-Xuan Lei, Zhu-Ting Lv, Qing-Hua Shang, Zheng Zhao, Jiang-Tao Li, Yi-Long Cheng
{"title":"Tough Polymeric Hydrogels Based on Amino Acid Derivative Mediated Dynamic Metal Coordination Bonds","authors":"Meng Li,&nbsp;Meng-Yuan Zhang,&nbsp;Wu-Xuan Lei,&nbsp;Zhu-Ting Lv,&nbsp;Qing-Hua Shang,&nbsp;Zheng Zhao,&nbsp;Jiang-Tao Li,&nbsp;Yi-Long Cheng","doi":"10.1007/s10118-024-3177-6","DOIUrl":"10.1007/s10118-024-3177-6","url":null,"abstract":"<div><p>The development of physically crosslinked hydrogels with excellent mechanical and sensing properties is of importance for expanding the practical applications of intelligent soft hydrogel materials. Herein, after copolymerization of hydroxyl-containing amino acid derivative N-acryloyl serine (ASer) with acrylamide (AM), we introduce Zr<sup>4+</sup> through an immersion strategy to construct metal ion-toughened non-covalent crosslinked hydrogels (with tensile strength of up to 5.73 MPa). It is found that the synergistic coordination of hydroxyl and carboxyl groups with Zr<sup>4+</sup> substantially increases the crosslinking density of the hydrogels, thereby imparting markedly superior mechanical properties compared to hydroxyl-free Zr<sup>4+</sup>-crosslinked hydrogels, such as N-acryloyl alanine (AAla) copolymerized with AM hydrogels (with tensile strength of 2.98 MPa). Through the adjustment of the composition of the copolymer and the density of coordination bonds, the mechanical properties of the hydrogels can be modulated over a wide range. Additionally, due to the introduction of metal ions and the dynamic nature of coordination bonds, the hydrogels also exhibit excellent sensing performance and good self-recovery properties, paving the way for the development of flexible electronic substrates with outstanding comprehensive performances.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1578 - 1588"},"PeriodicalIF":4.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase Patterning of Poly(oxime-ester) for Information Encryption by Photo-induced Isomerization 通过光诱导异构化对聚(肟酯)进行相图案化以实现信息加密
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-28 DOI: 10.1007/s10118-024-3183-8
Yu-Fan Yang, Yun Bai, Yi-Bao Li, Chang-Fei He
{"title":"Phase Patterning of Poly(oxime-ester) for Information Encryption by Photo-induced Isomerization","authors":"Yu-Fan Yang,&nbsp;Yun Bai,&nbsp;Yi-Bao Li,&nbsp;Chang-Fei He","doi":"10.1007/s10118-024-3183-8","DOIUrl":"10.1007/s10118-024-3183-8","url":null,"abstract":"<div><p>Crystal polymers or liquid crystal elastomers undergo a phase transition that results in a change in the corresponding optical properties, which has the potential to be applied in areas such as information encryption and anti-counterfeiting. The utilization of these materials for patterning purposes requires different phase transition temperatures. However, once prepared, altering the phase transition temperature of them presents significant challenges. Herein, a poly(oxime-ester) (POE) network is developed to achieve high-resolution and multilevel patterning by photo-induced isomerization. The as-prepared POE exhibits the ability to transition from an opaque state to a transparent state under temperature stimuli, with the transition temperature and kinetics dependent on UV light exposure time. Thus, complex patterns and information can be encrypted through different selective regional exposure time and decrypted under specific temperature or cooling time. Furthermore, we illustrate an example of temporal communication, where cooling time or temperature serves as the encoded information. This research expands the application scope of advanced encryption materials, showcasing the potential of POE in dynamic information encryption and decryption processes.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1488 - 1494"},"PeriodicalIF":4.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Simple-Prepared and Multi-Reusable Adhesive Based on Epoxy Vitrimer 一种基于环氧树脂 Vitrimer 的制备简单、可多次重复使用的粘合剂
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-28 DOI: 10.1007/s10118-024-3206-5
Yu-Ting Wang, Huan Liang, Yen Wei, Jian-Long Wang, Xiang-Ming He, Yang Yang
{"title":"A Simple-Prepared and Multi-Reusable Adhesive Based on Epoxy Vitrimer","authors":"Yu-Ting Wang,&nbsp;Huan Liang,&nbsp;Yen Wei,&nbsp;Jian-Long Wang,&nbsp;Xiang-Ming He,&nbsp;Yang Yang","doi":"10.1007/s10118-024-3206-5","DOIUrl":"10.1007/s10118-024-3206-5","url":null,"abstract":"<div><p>Adhesives play an important role in modern society’s production and daily life. Developing robust and sustainable adhesives remains a great challenge. Here 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 solvents. The adhesive process is also simple, requiring only 30 min at 180 °C. In addition, the vitrimer adhesive has the advantages of both erasability for reuse and excellent water resistance. This work provides a facile strategy to fabricate high-strength adhesive that ensures reusability, recyclability, low cost of raw materials, and simple processing technology. Simultaneously, it expands the range of potential applications for epoxy vitrimers.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1589 - 1594"},"PeriodicalIF":4.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Creep-Resistant Covalent Adaptable Networks with Excellent Self-Healing and Reprocessing Performance via Phase-Locked Dynamic Covalent Benzopyrazole-Urea Bonds 通过锁相动态共价苯并吡唑-脲键形成具有优异自愈合和再加工性能的抗蠕变共价适应性网络
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-27 DOI: 10.1007/s10118-024-3195-4
Miao Xie, Xiao-Rong Wang, Zhan-Hua Wang, He-Sheng Xia
{"title":"Creep-Resistant Covalent Adaptable Networks with Excellent Self-Healing and Reprocessing Performance via Phase-Locked Dynamic Covalent Benzopyrazole-Urea Bonds","authors":"Miao Xie,&nbsp;Xiao-Rong Wang,&nbsp;Zhan-Hua Wang,&nbsp;He-Sheng Xia","doi":"10.1007/s10118-024-3195-4","DOIUrl":"10.1007/s10118-024-3195-4","url":null,"abstract":"<div><p>Covalent adaptive networks (CANs) are capable of undergoing segment rearrangement after being heated, which endows the materials with excellent self-healing and reprocessing performance, providing an efficient solution to the environment pollution caused by the plastic wastes. The main challenge remains in developing CANs with both excellent reprocessing performance and creep-resistance property. In this study, a series of CANs containing dynamic covalent benzopyrazole-urea bonds were developed based on the addition reaction between benzopyrazole and isocyanate groups. DFT calculation confirmed that relatively low dissociation energy is obtained through undergoing a five-member ring transition state, confirming excellent dynamic property of the benzopyrazole-urea bonds. As verified by the FTIR results, this nice dynamic property can be well maintained after incorporating the benzopyrazole-urea bonds into polymer networks. Excellent self-healing and reprocessing performance is observed by the 3-ABP/PDMS elastomers owing to the dynamic benzopyrazole-urea bonds. Phase separation induced by the aggregation of the hard segments locked the benzopyrazole-urea bonds, which also makes the elastomers display excellent creep-resistance performance. This hard phase locking strategy provides an efficient approach to design CANs materials with both excellent reprocessing and creep-resistance performance.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1545 - 1556"},"PeriodicalIF":4.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Crosslinked Phosphorescent Poly(vinyl alcohol)-Terpyridine Films with Enhanced Mechanical Properties and Tunable Shape Memory 具有增强机械性能和可调形状记忆的动态交联磷光聚(乙烯醇)-三联吡啶薄膜
IF 4.1 2区 化学
Chinese Journal of Polymer Science Pub Date : 2024-08-27 DOI: 10.1007/s10118-024-3189-2
Meng Wei, Wei-Hao Feng, Chen Yu, Zhen-Yi Jiang, Guang-Qiang Yin, Wei Lu, Tao Chen
{"title":"Dynamic Crosslinked Phosphorescent Poly(vinyl alcohol)-Terpyridine Films with Enhanced Mechanical Properties and Tunable Shape Memory","authors":"Meng Wei,&nbsp;Wei-Hao Feng,&nbsp;Chen Yu,&nbsp;Zhen-Yi Jiang,&nbsp;Guang-Qiang Yin,&nbsp;Wei Lu,&nbsp;Tao Chen","doi":"10.1007/s10118-024-3189-2","DOIUrl":"10.1007/s10118-024-3189-2","url":null,"abstract":"<div><p>Achieving versatile room temperature phosphorescence (RTP) materials, especially with tunable mechanical properties and shape memory is attractive and essential but rarely reported. Here, a strategy was reported to realize multi-functional RTP films with multicolor fluorescence, ultralong afterglow, adjustable mechanical properties, and shape memory through the synergistic dynamic interaction of lanthanide (Ln<sup>III</sup>)-terpyridine coordination, borate ester bonds, and hydrogen bondings in a poly(vinyl alcohol) (PVA) matrix. By varying the amount of borax, the mechanical properties of the films could be finely controlled due to the change of crosslinking degree of dynamic borate ester bonds in PVA. The assembly and disassembly of borate ester bonds upon the trigger of borax and acid were applied as reversible linkage to achieve programmable shape memory behavior. In addition, the films displayed both fascinating multicolor fluorescence and ultralong afterglow characteristics due to the presence of Ln<sup>III</sup> doping and confinement of terpyridine in PVA. This study provides a new avenue to impart modulable mechanical strength and shape memory to RTP materials.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1595 - 1601"},"PeriodicalIF":4.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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