Article
Polymer Science
Liana Stoll, Sandra Domenek, Simone Hickmann Flores, Sonia Marli B. Nachtigall, Alessandro de Oliveira Rios
Summary: Packaging materials play a crucial role in preserving the quality and nutritional value of food, and utilizing Bixin has improved the light barrier of PLA packaging films, making it a promising biodegradable packaging material.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Yun Liao, Bing Cao, Li Liu, Xiandong Wu, Sheng Guo, Changhui Mi, Kaiwen Li, Meng Wang
Summary: Two kinds of bio-based polyurethane coatings were prepared by in-situ polymerization using castor oil and liquefied starch as raw materials. The Castor-PU coating had a uniform and dense section morphology, while the Starch-PU coating had a certain proportion of microporous structure. The controlled-release property of Starch-PU was poorer compared to Castor-PU, possibly due to the presence of concentrated sulfuric acid and hydrophilic dispersant in the liquefied starch.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Pablo R. Salgado, David A. D'Amico, Irene T. Seoane, Magdalena Iglesias Montes, Adriana N. Mauri, Viviana P. Cyras
Summary: By studying the preparation of bilayer films using the lowest possible concentration of polyhydroxybutyrate, the functionality of soy protein isolate films as food packaging or for agricultural uses was improved by reducing water vapor permeability. The bilayer films showed significant reduction of water vapor permeability of SPI films, and those with the highest PHB content exhibited the highest elastic Young's modulus and mechanical strength while maintaining good elongation and low T(g) value, similar to that of SPI.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
L. Simonini, H. Mahmood, A. Dorigato, A. Pegoretti
Summary: This study aims to develop a PLA-based material with well-balanced stiffness and toughness to overcome the brittleness issue of commercial grade PLA. Composites were prepared by blending PLA with increasing contents of TPU and a fixed concentration of CFs, which were acid-treated to enhance the interfacial adhesion. The results showed improved tensile modulus, maximum stress, and elongation at break, demonstrating the effectiveness of this approach in preparing novel PLA-based materials with tailorable properties.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Violeta Otilia Potolinca, Stefan Oprea
Summary: In this study, 1,4-piperazinediethanol was used as a chain extender to synthesize a series of new polyurethanes. Renewable cross-linkers were also introduced to investigate the microphase separation, thermal, mechanical, and surface properties of the polyurethanes. The results demonstrate that the composition and structure of the polyurethanes significantly impact their properties and the introduction of cross-linkers can enhance the thermal stability and water contact angle of the polyurethanes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Dandan Zhao, Qing Chang, Jiahui Fan, Qingfeng Shu, Shasha Niu, Dan Li, Yijun Xie, Xiaoyong Deng
Summary: The development of antibacterial pulp board with excellent antibacterial performance, high hydrophobicity, improved mechanical strength, long-term stability, and great application promise in the field of antimicrobial packaging materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Soham Irtiza Swapnil, Nondita Datta, Md Musavvir Mahmud, Rumana A. Jahan, M. Tarik Arafat
Summary: The study found that the appropriate combination of solvent-coagulant can form stable cellulose acetate fiber, with the addition of crosslinkers and catalyst further increasing the strength and usability of the fiber.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Xu Hu, Jinhao Sun, Xing Li, Lijun Qian, Juan Li
Summary: The study demonstrated that by adding phosphorus-nitrogen flame retardant (PN) and micro-crosslinking agent TGIC, the flame retardancy of polylactic acid (PLA) can be significantly improved, achieving UL-94 V-0 rating and higher LOI value. Additionally, the promotion of transesterification in PLA by PN reduces the release of flammable gases during thermal degradation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Liangliang Gu, Christopher W. Macosko
Summary: The study demonstrated that the interfacial tension between PE and PLA is at least 9mN/m, using a cocontinuous PE/PS/PLA ternary blend and observing the wetting morphology through scanning electron microscopy.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Serbulent Turk
Summary: In this study, hybrid coatings of anti-fog chitosan (CHI) and polyethyleneimine (PI) were prepared and coated on glass and safety glasses substrates. The optimal CHI/PI coating ratio was found to be 2:3 (v/v) with good anti-fogging properties and stability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mona Jafari, Nadia Jalalifar, Babak Kaffashi
Summary: The molecular structure of polylactic acid (PLA) was modified by lauroyl peroxide (LP) as an alkyl free radical and glycidyl methacrylate (GMA) as a reactive co-monomer. Different preparation methods resulted in samples with varying rheological properties and crystallization degrees, indicating the impact of preparation methods on the physical and mechanical properties of glycidyl methacrylate grafted polylactic acid (PLA-g-GMA).
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Xing Cao, Xiangli Liu, Yan Liu, Rui Ma, Shichang Sun
Summary: This study investigates the impact of curvature on bone cell migration and differentiation by modifying PDMS surfaces with PDA. The results indicate that different curvatures have varying effects on bone cells, with chondrocytes migrating rapidly in grooves with specific curvature ranges and BMSCs showing high efficiency of differentiation in those ranges. Furthermore, BMSCs exhibit high differentiation efficiency into chondrocytes at the edges of micro-nano patterns with different perimeter curvatures, with the highest efficiency observed at 120 degrees convex curvature.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Fathin Hani Azizul Rahim, Abdul Aziz Saleh, Raa Khimi Shuib, Ku Marsilla Ku Ishak, Zuratul Ain Abdul Hamid, Muhammad Khalil Abdullah, Mohamad Danial Shafiq, Arjulizan Rusli
Summary: This study compared the thermal, mechanical, and shape memory behavior of PLA blended with different structures of SBS. Results showed that PLA/L-SBS blends had higher tensile strength and modulus compared to PLA/R-SBS blends, with PLA70/SBS30 exhibiting the best shape memory behavior.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Zongwei Guo, Zice Xu, Zhiqiang Dong, Mengjie Zhang, Zhiyuan Chi, Ming Li, Lei Shang, Yuhui Ao
Summary: This study introduces a novel hexa-epoxy functionalized bio-based epoxy resin (HPVIGEP) with a multi-arm star structure that significantly reduces viscosity and enhances thermo-mechanical properties. The application of this resin improves the mechanical properties of carbon fiber composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Masakazu Nishida, Shigeru Bito, Masahiro Nishida
Summary: The study investigated the effects of various shapes and addition amounts of crosslinking reagents on the expression mechanisms of polymer properties in PHB and PCL blends. It was found that the elasticity of the blends increased with the addition of liquid crosslinking reagents, while the toughness decreased with the addition of solid crosslinking reagents.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Lijuan Li, Tao Jiang, Sheng Wang, Sheng Cheng, Xueliang Li, Haibing Wei, Yunsheng Ding
Summary: In this study, branched poly(arylene alkylene)-based ionomers were synthesized by modifying the poly(arylene alkylene) structure. The branched membranes showed lower water absorption, good swelling resistance, and comparable conductivity to the unbranched membranes. Furthermore, the branched membranes exhibited excellent alkaline durability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Chemical
Fan Zhang, Wujin Ye, Wenjuan Zhou, Xinchen Gao, Huagao Fang, Yunsheng Ding
Summary: In this study, the selective distribution of multiwalled carbon nanotubes and hexagonal boron nitride in an epoxy vitrimer matrix was achieved through compression molding, resulting in polymer composites with enhanced thermal conductivity and electrical insulation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Tao Jiang, Cheng Wu, Yiyang Zhou, Sheng Cheng, Shanzhong Yang, Haibing Wei, Yunsheng Ding, Yucheng Wu
Summary: In this study, p-quaterphenylene moiety was copolymerized into the poly(arylene alkylene)-based ionomers to improve the stability of anion conductive membranes. The results showed that the modified membranes had lower water absorption, suppressed swelling and good alkaline stability. This simple structural modification strategy can guide the molecular design of poly(arylene alkylene)-based ionomeric materials with improved membrane properties.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Yiyang Zhou, Qiuyue Meng, Ping Wang, Haibing Wei, Pei Xu, Yunsheng Ding
Summary: Polymerized ionic liquid containing block structure (PIL) has been used to regulate the phase structure, crystallization ability, rheology behavior and mechanical properties of poly(lactide) (PLA)/poly(E-caprolactone) (PCL) blends. The addition of PIL enhances the interaction between polymer components and improves the mechanical properties of the blends. However, excessive PIL content can lead to changes in the phase structure and reduced mechanical properties of the blends.
MACROMOLECULAR RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Zhaofei Wang, Xuemin Zhang, Wansheng Yao, Yong Dong, Baiyao Zhang, Xiaoyu Dong, Huagao Fang, Guobing Zhang, Yunsheng Ding
Summary: This study presents the design and synthesis of cross-linked thermosetting waterborne polyurethanes (WPUs) with excellent reprocessability. The cross-linked WPUs exhibit classic vitrimer performance and high mechanical properties, with a recovery ratio of over 80% for the recycled samples. Moreover, the cross-linked WPUs show significant antibacterial activity. This research provides a new method for the reprocessing of thermosetting WPUs and demonstrates the potential of WPU CANs as sustainable materials.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Tao Wang, Yu Zhao, Sheng Wang, Sheng Cheng, Shanzhong Yang, Haibing Wei, Yunsheng Ding
Summary: A major challenge in anion exchange membrane (AEM) fuel cells is the development of high-performing AEMs that meet alkaline stability, swelling resistance, and ion conductivity criteria simultaneously. Poly(biphenylene alkylene)-based membranes, specifically PBPA-6-QA, exhibit improved phase separation, suppressed water uptake, high ion conductivity, and improved alkaline stability. A single cell using PBPA-6-QA demonstrates a peak power density of 0.97 W cm-2 and remains stable at a constant current density of 0.2 A cm-2 for 90 hours without membrane degradation.
JOURNAL OF POWER SOURCES
(2023)
Article
Polymer Science
Huagao Fang, Xingchen Gao, Fan Zhang, Wenjuan Zhou, Guobin Qi, Kai Song, Sheng Cheng, Yunsheng Ding, H. Henning Winter
Summary: This study introduces the vitrimer chemistry of boronic transesterification into a triblock thermoplastic elastomer, enabling associative bond exchange in its nanoscale domains. The localized dynamic cross-linking improves the material's creep resistance and allows for reprocessing. The study also explores the potential application of the elastomer as a hot-melt adhesive, showing excellent lap shear strength.
Article
Chemistry, Multidisciplinary
Jujia Zhang, Sian Chen, Haibing Wei, Jin Zhang, Haining Wang, Shanfu Lu, Yan Xiang
Summary: To address the stress loss and plasticization issues in polymer electrolyte membranes during startup/shutdown stages, a proton conductor confinement strategy is introduced. By precisely regulating polymer side-chain structure and defined plasticization quantitative indicator, significant refinements in membrane's conductivity, durability, and single-cell performance are achieved successfully.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongjun Jin, Ziyan Wu, Weilin Lin, Yinye Chen, Jingran Zhang, Ruyi Zheng, Haibing Wei, Qinghua Chen, Qingrong Qian, Jianbin Huang, Jie Zhang, Yun Yan
Summary: In this study, size-controllable tetragonal nanoprisms were formed through crystallization-directed ionic self-assembly (CDISA) by evaporating a micellar solution on solid substrates. The length and width of the nanoprisms can be easily tuned by varying the initial concentration. This precise size-control strategy is expected to provide new possibilities for designing advanced materials with size-controllable anisotropic nanostructures.
Article
Materials Science, Multidisciplinary
Yiyang Zhou, Qiuyue Meng, Ming Chen, Chenxi Wang, Tao Jiang, Jingsong Zhou, Ping Wang, Lei Xia, Yezi You, Haibing Wei, Yunsheng Ding
Summary: The effects of DIP, a compound containing a xanthate group, on radical reactions and structural evolution of EPDM were investigated. It was found that the structural evolution and long-term stability of EPDM can be achieved by controlling radical reactions during gamma-ray irradiation. The presence of DIP can prevent EPDM deterioration, with the samples containing 1 wt% DIP showing retention rates of elongation at break and tensile strength at about 90% and 160% under irradiation, compared to 33% and 70% for additive-free EPDM. Additionally, DIP can improve the oxidation resistance and maintain the thermal decomposition temperature of EPDM under irradiation.
NPJ MATERIALS DEGRADATION
(2023)
Article
Engineering, Chemical
Ruoxi Ma, Yufeng Kang, Tao Wang, Tao Jiang, Hao-yan Yin, Chao Liu, Haibing Wei, Yunsheng Ding
Summary: This article reports a simple design strategy that improves the conductivity of anion exchange membranes by modifying the backbone structure. By introducing dimethylfluorenylene units, the chain packing behavior and free volume of the membrane can be modulated. The optimized membrane, PFTPA-81, exhibits high ion conductivity, proper water absorption, and excellent alkaline stability. A fuel cell prototype made from PFTPA-81 achieved a high peak power density and demonstrated good durability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Huagao Fang, Fan Zhang, Yongpu Zhao, Xingchen Gao, Wenjuan Zhou, Guobin Qi, Yunsheng Ding, H. Henning Winter
Summary: Liquid crystal elastomer networks (LCEs) are highly versatile materials with unique mechanical and optical properties. The addition of dynamic covalent bonds allows for network renewal and further opportunities. Through increasing the content of liquid crystal mesogens (LCM), elastomeric vitrimer epoxies (EV, m-EV, and vLCE) were synthesized with varying rheological properties. The specific contributions of the smectic structure in vLCE were discussed, and the underlying mechanisms were explored.
Article
Materials Science, Multidisciplinary
Tao Wang, Yu Zhao, Ruoxi Ma, Lijuan Li, Qianjun Ling, Xueliang Li, Yunsheng Ding, Haibing Wei
Summary: This study presents a design using rigid arylene units to suppress water sorption in quaternized poly(arylene alkylene) membranes. The P(4PA-co-3PA)-D100 membrane showed limited water uptake and swelling, as well as exceptional ion conductivity, due to its phase-separated morphology and immiscibility of hydrophilic and hydrophobic components.
Article
Engineering, Electrical & Electronic
Guangsheng Deng, Linjie Wang, Baihong Chi, Huagao Fang, Jingyao Sun, Ying Li, Jun Yang, Zhiping Yin
Summary: This letter proposes a novel way of realizing broadband absorbers with a block building method, which broadens their absorptivity to different application scenarios. The self-supported carbon nanotube-cellulose nanocrystal (CNT-CNC) film, acting as a resistive layer, can be synthesized independently of selecting substrates, making it easy to replace and meet different application requirements. Experimental demonstration of a high temperature-resistant and self-repairing EM wave absorber incorporating the CNT-CNC film with ceramics and supramolecular thermoplastic urethane substrates shows the effectiveness of the block building method.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Chemical
Yu Zhao, Yake Yang, Sheng Wang, Tao Wang, Chao Liu, Sheng Cheng, Haibing Wei, Yunsheng Ding
Summary: Constructing efficient ion transport channels in anion exchange membranes (AEMs) through morphology regulation is an effective strategy to enhance ion conductivity. In this study, a versatile design paradigm was proposed to achieve nanoscale phase separation morphologies in poly(arylene alkylene) AEMs. The AEMs exhibited excellent conductivities and ion diffusion coefficients, and a single cell assembled with the membrane showed high power density and voltage retention.
JOURNAL OF MEMBRANE SCIENCE
(2023)
