Chinese Journal of Polymer Science最新文献_第9页

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, Peng-Fei Zhang, 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, Lu Wang, Hong-Zhe Su, Zhi-Cheng Wu, Qiao-Gen Zhang, Wei Fan, 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, Meng-Yuan Zhang, Wu-Xuan Lei, Zhu-Ting Lv, Qing-Hua Shang, Zheng Zhao, Jiang-Tao Li, 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, Yun Bai, Yi-Bao Li, 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

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, Xiao-Rong Wang, Zhan-Hua Wang, 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, Wei-Hao Feng, Chen Yu, Zhen-Yi Jiang, Guang-Qiang Yin, Wei Lu, 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

A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor 用于高可靠性柔性应变传感器的强韧自愈型硫辛酸基弹性体

IF 4.1 2区化学

Chinese Journal of Polymer Science Pub Date : 2024-08-27 DOI: 10.1007/s10118-024-3210-9

Xin-Yu Chen, Yu-Bing Fu, Xue-Ling Yan, Lan Liu

引用次数: 0

Dynamic Sulfur-Rich Polymers from Elemental Sulfur and Epoxides 元素硫和环氧化物的动态富硫聚合物

IF 4.1 2区化学

Chinese Journal of Polymer Science Pub Date : 2024-08-27 DOI: 10.1007/s10118-024-3182-9

Ke-Xiang Chen, Chen-Hui Cui, Zhen Li, Ting Xu, Hao-Qing Teng, Zhi-Yuan He, Yin-Zhou Guo, Xiao-Qing Ming, Zhi-Shen Ge, Yan-Feng Zhang, Tie-Jun Wang

{"title":"Dynamic Sulfur-Rich Polymers from Elemental Sulfur and Epoxides","authors":"Ke-Xiang Chen, Chen-Hui Cui, Zhen Li, Ting Xu, Hao-Qing Teng, Zhi-Yuan He, Yin-Zhou Guo, Xiao-Qing Ming, Zhi-Shen Ge, Yan-Feng Zhang, Tie-Jun Wang","doi":"10.1007/s10118-024-3182-9","DOIUrl":"10.1007/s10118-024-3182-9","url":null,"abstract":"<div><p>Sulfur-containing dynamic polymers had attracted significant attention due to their unique chemical structures with high reversibility. Utilizating sulfur, an inexpensive industrial waste product, to synthesize dynamic polysulfide polymers through reverse vulcanization has been a notable approach. However, this method required high temperatures and resulted in the release of unpleasant oders. In this study, we presented a robust method for the preparation of sulfur-rich polymers with dynamic polysulfide bonds from elemental sulfur and inexpensive epoxide monomers <i>via</i> a one-pot strategy at the mild room temperature. Different types of polysulfide molecules and polymers were synthesized by reacting various epoxide compounds with sulfur, along with the investigation of their structures and dynamic behaviors. It was noteworthy that the obatined polymers prepared from <i>m</i>-(2,3-epoxypropoxy)-<i>N,N</i>-bis(2,3-epoxypropyl)aniline and elemental sulfur exhibit multiple dynamic behaviors, including polysulfide metathesis and polysulfide-thiol exchange, enabling their rapid stress relaxation, self-healing, reprocessing and degradable properties of the cross-linked polymer. More importantly, the hydroxyl groups at the side chains from epoxide ring opening exhibited potential transesterification. This work provided a facile strategy for designing dynamic sulfur-rich polymers <i>via</i> a mild synthesis route.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1479 - 1487"},"PeriodicalIF":4.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188655","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

Photoswitchable Spiropyridine Enabled Photoactuation of Polymeric Hydrogels under Physiological pH Conditions 生理酸碱度条件下聚合物水凝胶的光电开关性螺吡啶赋能

IF 4.1 2区化学

Chinese Journal of Polymer Science Pub Date : 2024-08-27 DOI: 10.1007/s10118-024-3211-8

Cong Liao, Meng-Qi Du, Chuang Li

{"title":"Photoswitchable Spiropyridine Enabled Photoactuation of Polymeric Hydrogels under Physiological pH Conditions","authors":"Cong Liao, Meng-Qi Du, Chuang Li","doi":"10.1007/s10118-024-3211-8","DOIUrl":"10.1007/s10118-024-3211-8","url":null,"abstract":"<div><p>The incorporation of molecular switches into polymer networks has been a powerful approach for the development of functional polymer materials that display macroscopic actuation and function enabled directly by molecular changes. However, such materials sometimes require harsh conditions to perform their functions, and the design of new molecular photoswitches that can function under physiological conditions is highly needed. Here, we report the design and synthesis of a spiropyridine-based photoswitchable hydrogel that exhibits light-driven actuation at physiological pH. Owing to its high p<i>K</i><sub>a</sub>, spiropyridine maintains its ring-open protonated form at neutral pH, and the resulting hydrogel remains in a swollen state. Upon irradiation with visible light, the ring closure of spiropyridine leads to a decrease in the charge and a reduction in the volume of the hydrogel. The contracted gel could spontaneously recover to its expanding state in the dark, and this process is highly dynamic and reversible when the light is switched on and off. Furthermore, the hydrogel shows switchable fluorescence in response to visible light. Bending deformation is observed in the hydrogel thin films upon irradiation from one side. Importantly, the independence of this spiropyridine hydrogel from the acidic environment makes it biotolerant and shows excellent biocompatibility. This biocompatible spiropyridine hydrogel might have important biorelated applications in the future.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"42 10","pages":"1602 - 1609"},"PeriodicalIF":4.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188905","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