Article
Polymer Science
Jingyi Wang, Hongbing Jia
Summary: In this study, a carbon-silica dual-phase filler/natural rubber vulcanizate was prepared using mechanical blending, and the dispersion of the filler in the rubber matrix and its effects on the rubber network structure were investigated.
Article
Materials Science, Multidisciplinary
Yushi Wang, Xueru Xiong, Caihong Lin, Wen Huang, Yunhua Chen, Lin Wang, Sa Liu, Yong-Guang Jia
Summary: Poly(l-glutamic acid) (PLGA), a polypeptide prepared by bacteria fermentation, has broad applications in tissue engineering. Through the combination of host-guest crosslinking and the photo-crosslinking of a dopamine derivative, a PLGA-based dual-network hydrogel with self-healing and strong adhesion properties is prepared. The hydrogel shows rapid healing and tissue regeneration in vivo.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
Javier Araujo-Morera, Miguel A. A. Lopez-Manchado, R. Verdejo, Marianella Hernandez
Summary: This study assessed the effects of curing agents and activating complexes on the self-healing capability of styrene-butadiene rubber, revealing that each component acts at different time scales. Activating complexes are responsible for the initial physical healing stage, while sulfur enables dynamic healing through disulfide exchange reactions.
Article
Chemistry, Multidisciplinary
James Boden, Chris R. Bowen, Antoine Buchard, Matthew G. Davidson, Chris Norris
Summary: The demand for self-healing elastomers is increasing due to their potential to reduce down-time and cost by extending product lifetimes and reducing waste. However, further research is needed to understand the self-healing mechanisms and develop commercially applicable materials. This study investigates the effect of cross-linking on the self-healing performance of ENR and NR, providing a foundation for modifying ENR for future applications.
Article
Biochemistry & Molecular Biology
Jiayi Ai, Kai Li, Jianbin Li, Fei Yu, Jie Ma
Summary: The study shows that Xylan/PVA/Borax DN hydrogel exhibits excellent performances including strong strength, high toughness, good self-recovery, and excellent self-healing properties, providing a new direction for designing hydrogels with high strength, high toughness, large extensibility, and self-healing properties based on xylan.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Composites
Abdul Rehman, Hanafi Ismail, Noor Faezah Mohd Sani, Nadras Othman, Noor Aishatun Majid, Atif Islam, Raa Khimi Shuib
Summary: This study explores the reinforcement effect of halloysite nanotubes (HNTs) in self-healing natural rubber based on metal thiolate ion networks. The results show that the addition of HNTs can significantly improve the mechanical performance and self-healing efficiency of the rubber material.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Characterization & Testing
Nuur Laila Najwa Thajudin, Mohd Hafiz Zainol, Raa Khimi Shuib
Summary: A self-healing natural rubber material with reversible metal-thiolate ion networks was successfully developed, allowing for self-repair at room temperature. The study demonstrated that the mechanical properties of the material can be fully regenerated, with a 60% increase in lifespan. This new material shows potential for the manufacturing of sustainable rubber products.
Article
Green & Sustainable Science & Technology
Benteng Liu, Zhaopeng Hu, Xinke Zhong, Li Yang, Xin Jiang, Min Zuo, Miao Du, Yihu Song, Qiang Zheng, Danling Wang
Summary: This study investigated the effects of deep eutectic solvents (DESs) on rubber vulcanization reactions and found that DES can participate in the formation of crosslinking networks and regulate the crosslinking density through interactions with rubber components and activators. Moreover, DES influences the rheological and mechanical properties of the vulcanizates, providing a way to produce high-strength rubber products at lower vulcanization temperatures.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Nanoscience & Nanotechnology
Mathilde Grosjean, Louis Gangolphe, Stephane Dejean, Sylvie Hunger, Audrey Bethry, Frederic Bossard, Xavier Garric, Benjamin Nottelet
Summary: This study presents the design of biodegradable dual-crosslinked elastomeric networks with fast and efficient self-healing properties at 37 degrees C. The self-healable materials exhibit mechanical properties compatible with soft tissues and linear degradation due to chemical cross-links. The biocompatibility of these materials is confirmed, demonstrating their potential for designing temporary medical devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
W. Chawalitsakunchai, P. Dittanet, S. Loykulnant, P. Sae-oui, S. Tanpichai, A. Seubsai, P. Prapainainar
Summary: Nanocelluloses extracted from pineapple leaves can be used as reinforcing fillers in rubber composites to enhance mechanical properties, especially in natural rubber. Composites vulcanized using sulfur showed better strength and chemical resistance compared to those vulcanized using electron beam irradiation. This difference is attributed to the amount of crosslinking networks in the composites.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Characterization & Testing
Takayuki Saito, Masaki Yamano, Kazumi Nakayama, Seiichi Kawahara
Summary: Rubber-state nuclear magnetic resonance (NMR) spectroscopy was used to quantitatively analyze crosslinking junctions and uncrosslinked pendant sulfidic groups in natural rubber (NR) vulcanizates with two different formulations. The resulting NR vulcanizates were characterized to determine crosslink density, number of sulfur atoms at crosslinking junctions, and structure of crosslinking junctions. Signals in rubber-state C-13 and H-1 NMR spectra were assigned to specific groups using two-dimensional NMR spectroscopy, allowing for estimation of the proportion of CH linking to sulfur at the crosslinking junctions.
Article
Materials Science, Multidisciplinary
Subhradeep Mandal, Frank Simon, Shib Shankar Banerjee, Lewis B. Tunnicliffe, Charoen Nakason, Chayan Das, Mithun Das, Kinsuk Naskar, Sven Wiessner, Gert Heinrich, Amit Das
Summary: Chemical cross-linking of rubber significantly modifies the physical properties of the polymer, making it suitable for high-performance products; sulfur or peroxide cross-linking is the conventional method of vulcanization in rubber industries; utilizing mixed metal ions and diamine to prepare self-healable rubber is a promising approach to fulfill the growing demand for durable, high-performance rubber products.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Kexin Huang, Haotian Xu, Cheng Chen, Fengna Shi, Fang Wang, Jiarui Li, Sheng Hu
Summary: In this study, cellulose was modified to obtain cellulose acetoacetate, which was then reacted with carboxymethyl chitosan to form a self-healing hydrogel. Further oxidation of cellulose acetoacetate and reaction with oxalyl dihydrazide resulted in a novel dual dynamic covalent bond crosslinked polysaccharide hydrogel, demonstrating increased tensile strength and reduced self-healing time compared to the original hydrogel. The complex hydrogel showed excellent fatigue resistance and self-healing efficiency, making it highly attractive for biomedical applications.
Article
Materials Science, Composites
Mingliang Wu, Tianwen Luo, Junjie Lu, Yueqiong Wang, Baofeng Lin, Chuanhui Xu
Summary: Multifunctional and easily-controlled self-healing rubbers with high performance were developed in this study. The composites showed satisfactory mechanical strength, photothermal conversion, and accurate self-healing. The self-healing capacity was realized through the construction of an ionic supramolecular network, and the photothermal effect of carbon nanotubes effectively promoted the healing process. These high-performance self-healing rubbers have great potential in various applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Mengfan Zhang, Xiao Chen, Kaidan Yang, Qi Dong, Hongjun Yang, Shaojin Gu, Weilin Xu, Yingshan Zhou
Summary: A self-healing hyaluronic acid-based hydrogel with enhanced strength was fabricated using a dual crosslinking strategy. The hydrogel exhibited fast gelation, excellent self-healing capability, and potential applications in cell culture, drug delivery, and 3D bioprinting.
CARBOHYDRATE POLYMERS
(2023)
Article
Polymer Science
Mustafa Kalay, Abidin Esidir, Mahmut Ruzi, N. Burak Kiremitler, Mustafa Serdar Onses
Summary: This study proposes stable and addressable polymer PUFs, utilizing a cross-linkable polymer system, which demonstrates high stochastic characteristics and low-cost production. The performance of the polymer features is evaluated through various analyses, and direct image authentication is achieved using feature matching algorithms.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Jingyu Jin, Guoqiang Lu, Jun Nie, Xiaoqun Zhu
Summary: Photopolymerization technology is limited in the fields of food packaging and biomedicine due to the high migration of small molecules from photoinitiators. In this study, a polymerizable 2-vinyl thioxanthone (ETX) was synthesized to improve the migration stability of photoinitiators. Macromolecular photoinitiators (PPI1, PPI2) were also prepared to further reduce migration. The results showed that the ETX/TEOA system had higher initiation performance and PPI2 displayed favorable initiation ability. Additionally, the migration of ETX, PPI1, and PPI2 in photocured film was significantly reduced. These low-migration photoinitiators have potential applications in the fields of food packaging and biological materials.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Weijie Li, Jun Nie, Yingying Zhao, Xiaoqun Zhu
Summary: This study focuses on the development of high-performance, low-migration photoinitiators. A polymerizable photoinitiator (VBP) was synthesized by introducing an ethylene group into benzophenone, and three different molecular weight single-component photoinitiators (PVBN1-3) were synthesized based on VBP. The results show that these new photoinitiators have stronger absorption ability compared to benzophenone and significantly reduce the migration of initiators and co-initiators, addressing the safety concerns caused by migration.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Seira Morimune-Moriya, Yuki Iwahashi, Mitsuru Nakamura, Daisuke Ogawa, Keiji Nakamura
Summary: This study investigates the effect of plasma treatment on carbon nanotubes (CNTs) and the structure/properties of polyimide (PI) nanocomposites with ultra-low content of CNTs. The results show that plasma treatment introduces isocyanate groups on the surface of CNTs and enhances the interfacial interaction between PI and treated CNTs. This leads to a significant improvement in the mechanical properties of the nanocomposites, with even a small addition of treated CNTs showing a substantial increase in Young's modulus, tensile strength and toughness.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Yuanlong Li, Chaojie Chen, Guoqing Cui, Li Liu, Chao Zhou, Guangfeng Wu
Summary: In this study, a novel ion-conducting hydrogel was fabricated using a straightforward approach. The hydrogel showed excellent tensile properties and high toughness due to physical interactions and covalent binding. Additionally, the introduction of hydroxyethyl cellulose and lithium chloride improved the biocompatibility, mechanical properties, electrical conductivity, and frost resistance of the hydrogel, demonstrating its potential for cold climate applications.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Dengwei Yan, Jinxian Yang, Xuejun Pan, Xiaozheng Duan, Lianwei Li, Mo Zhu
Summary: The influence of backbone length on grafting efficiency during the graft-onto reaction process was investigated. It was found that the polydispersity effect of backbone length does not affect the final grafting efficiency, indicating that the local dynamics of chain segments dominate the graft-onto process.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Zhaoyi Luo, Xianjie Pan, Fanqi Liu, Quanxi Yi, Yanning Zeng, Yunhua Chen, Chaoyang Wang
Summary: This study provides a method to prepare high-performance epoxy materials with good malleability and thermal stability. The materials have self-healing and welding capabilities, thanks to the addition of specific chemical bonds and network structures. They exhibit mechanical properties comparable to commercial epoxy resins and show great potential for sustainable industrial development.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Chaoji Xiong, Hao Wang, Lihua Deng, Kun Liang, Chunhua Wu, Wei Wu, Qian Chen
Summary: In this study, four polyamides were synthesized and their adsorption performances for Hg2+ in aqueous systems were investigated. The polyamides exhibited high adsorption capacities and excellent reusability, with the involvement of sulfur, nitrogen, and oxygen in the chemical adsorption process of Hg2+.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Siim Laanesoo, Olivier Bonjour, Rauno Sedrik, Iris Tamsalu, Patric Jannasch, Lauri Vares
Summary: The insertion of rigid aliphatic or aromatic building blocks in polymer structures is an effective way to synthesize high -Tg polymer materials. In this study, a series of isosorbide-2-aryl carboxylate-5-methacrylate monomers (ArIMAs) were synthesized by functionalizing isosorbide 5-methacrylate with various aromatic lignin-inspired esters. These monomers were polymerized to obtain high molecular-weight poly(aryl carboxylate isosorbide methacrylates) (PArIMAs). The resulting polymers showed high glass transition temperatures and thermal stability, making them suitable for use as high-performance plastics and coatings.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Yuqian Wu, Weijie Xu, Jianliang Li, Zhangfeng Zhong, Liqing Huang, Shengke Li, Huaping Tan
Summary: This study investigates the improvement of degradation and drug release characteristics of dynamic Schiff base-mediated natural polysaccharide hydrogels using tannic acid (TA), leading to enhanced stability and functionality.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Xi Zhang, Xiangli Kong, Xin Zhou, Yiyan Gao, Yibo Sun, Guanghui Gao, Wei Liu, Kai Shi
Summary: Conductive hydrogels have great development prospects in flexible strain sensors, but long-term direct contact with human skin can cause bacterial infection. A hydrogel with antibacterial, biocompatibility, and toughness was designed and manufactured using a freeze-thaw method. The hydrogel maintains tensile properties and fatigue resistance at low temperatures and is resistant to bacteria. Therefore, hydrogel sensors can be used to monitor human movements.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Wei Zhang, Jiangang Yu, Mingyang Wu, Rui Li, Anqiang Zhang, Yaling Lin
Summary: In this study, polyacrylamide containing quaternary ammonium salts (PAM-X) were synthesized and found to effectively inhibit soil-borne pathogenic fungi while maintaining the balance of microbial population in soil. PAM-X also showed low toxicity to earthworms and fish, providing a new method for the prevention and control of soil-borne fungal diseases.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Jiawen He, Haojie Yu, Li Wang, Jian Yang, Yanhui Zhang, Wenbing Huang, Chenguang Ouyang
Summary: This review discusses the use of polymeric hydrogels for atmospheric water harvesting (AWH), including the mechanism of water sorption, fabrication methods, and strategies for optimizing the structure of hydrogels. The extended applications of hygroscopic photothermal hydrogels, such as agricultural irrigation and dehumidification, are also explored. The challenges and prospects of using polymeric hydrogels for AWH are summarized.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Ying Du, Shuaishuai Lu, Yuanna Sun, Qingshan Li, Xinhai He
Summary: This study introduces a method to improve the performance of hydrogels by incorporating proline, resulting in hydrogels with excellent stretchability, high conductivity, and long-term stability. The hydrogel remains flexible and conductive even at ultra-low temperatures.
EUROPEAN POLYMER JOURNAL
(2024)