Article
Green & Sustainable Science & Technology
Jinwei Zhang, Xiaopeng Li, Zheng Zhu, Tao Chang, Xiying Fu, Yongjing Hao, Xiaocai Meng, Balaji Panchal, Shenjun Qin
Summary: The study introduces a series of hydroxylamino-tethered polymeric ionic liquids with adjustable alkyl length substitutes, which efficiently and stably convert CO2 into cyclic carbonates without the need for metals and solvents.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Engineering, Environmental
Liwei Sun, Ming Gao, Shaokun Tang
Summary: The design and synthesis of amino acid-functionalized poly(ionic liquid) materials show promising potential as efficient CO2 adsorbents. Through the use of supercritical foaming technology, porous-P([VBMI][Gly]) with significantly improved CO2 adsorption performance was successfully constructed for the first time.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Anna Sowinska-Baranowska, Magdalena Maciejewska, Paulina Duda
Summary: This study aimed to apply corn starch and ground walnut shells as biofillers for natural rubber composites. The addition of ionic liquid and aminosilane improved the dispersion and curing characteristics of the biofillers. Starch-filled composites showed improved mechanical properties, while walnut shell-filled composites exhibited enhanced resistance to thermo-oxidative aging.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Pharmacology & Pharmacy
Mashan Almutairi, Priyanka Srinivasan, Peilun Zhang, Fischer Austin, Arun Butreddy, Muteb Alharbi, Suresh Bandari, Eman A. Ashour, Michael A. Repka
Summary: This paper presents a comprehensive review of CO2-HME processes focused on pharmaceutical polymers and applications. It demonstrates the steps and requirements for the setup of experimental devices and discusses the influence of CO2 characteristics on HME processes. The most relevant physical and chemical properties of pharmaceutical grade polymers subjected to the CO2-HME process are described. The paper also discusses the impact of HME process parameters in conjunction with CO2 concentration on process feasibility and final product formation. Pharmaceutical applications of CO2-based HME, including extrusion feasibility, solubility, dissolution rate enhancement, and gastro-retentive or floating drug delivery, are presented in detailed case studies. The paper concludes with an overview of the current status of general CO2-based techniques and the potential for future applications through the integration of CO2 with HME.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2022)
Article
Polymer Science
Chih-Jen Chang, Manikandan Venkatesan, Chia-Jung Cho, Ping-Yu Chung, Jayashree Chandrasekar, Chen-Hung Lee, Hsin-Ta Wang, Chang-Ming Wong, Chi-Ching Kuo
Summary: Starch-based biodegradable foams were synthesized using industrial starch and supercritical CO2. The foam properties were improved by modifying the surface of thermoplastic starch and optimizing the foam-forming process. The resulting composite foam with PBAT exhibited good flexibility and low foam density.
Article
Green & Sustainable Science & Technology
Binjia Zhang, Yabin Guo, Lisong Lin, Dongling Qiao, Fengwei Xie
Summary: Considering the renewability and chemical versatility of natural biopolymers, there is a high demand for innovative solvation processes to efficiently disrupt the native supramolecular structures of natural polymers for their modification, derivation, and materials fabrication. This study compares the structural disorganization behavior of different starches in an aqueous ionic liquid, and finds that A-type starches are more susceptible to structural disruption than B-type starches. The ease of starch gelation in the aqueous ionic liquid is not determined by amylose content, but by the compactness of the granule surface.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Polymer Science
Tianyu Jiang, Fengyi Chen, Qingfei Duan, Xianyang Bao, Shuai Jiang, Hongsheng Liu, Ling Chen, Long Yu
Summary: This study designed a reactive extrusion system for graft copolymerization of acrylamide on starch, improving the performance of starch-based SAP.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Jinkai Lu, Shaoqing Liu, Aihao Xu, Lijian Jin, Hanwen Chi, Ying Li, Bin Li, Lihui Dong, Minguang Fan
Summary: A series of different supported ionic liquids were synthesized in this study, and it was found that ionic liquid polymer microspheres grafted with pyridine were the most active catalysts for the synthesis of cyclic carbonates. The catalyst showed high efficiency, stability, and recyclability, with good yield and selectivity.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Applied
Yue Cheng, Xiaosong Zhai, Yuhao Wu, Cheng Li, Rui Zhang, Chanchan Sun, Wentao Wang, Hanxue Hou
Summary: Natural waxes were incorporated into starch/gelatin films to address the issue of strong hydrophilicity. The addition of waxes reduced the storage modulus and complex viscosity of the films, while increasing their water resistance and surface hydrophobicity. However, certain waxes also decreased the tensile strength of the films.
Article
Chemistry, Multidisciplinary
Hongbing Song, Yongjie Wang, Yule Liu, Lei Chen, Bingxiao Feng, Xin Jin, Yu Zhou, Tingting Huang, Meng Xiao, Fangmin Huang, Hengjun Gai
Summary: The designed porous hypercross-linked poly(ionic liquid)s not only facilitate CO2 capture and selective absorption, but also show good activity for cycloaddition reactions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Le Yao, Chengjiang Lin, Xiaozheng Duan, Xiaoqing Ming, Zhixuan Chen, He Zhu, Shiping Zhu, Qi Zhang
Summary: This article reports a new type of underwater adhesive based on a polymeric matrix and hydrophobic ionic liquid, which has autonomous underwater adhesion capability. Research shows that the adhesion energy of this adhesive on PET substrate will increase more than 5 times after 24 hours.
NATURE COMMUNICATIONS
(2023)
Article
Food Science & Technology
Debomitra Dey, Bon-Jae Gu, Pichmony Ek, Carolyn F. Ross, Steven R. Saunders, Girish M. Ganjyal
Summary: This study investigated the inclusion of cellulose nanocrystals (CNC) and microcrystalline cellulose (MCC) in corn starch (CS) extrusion processing. Blends were prepared with different concentrations of CNC and MCC in CS. The results showed that CNC-based extrudates maintained a high expansion ratio (ER) even at high CNC concentrations due to the lower crystallinity index (CrI) and particle size of CNC compared to MCC. This study provides insights into the potential application of CNC and MCC in manufacturing extruded products with high fiber content.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Chemistry, Applied
Philipp Miksovsky, Elias N. Horn, Shaghayegh Naghdi, Dominik Eder, Michael Schnuerch, Katharina Bica-Schroeder
Summary: In this article, a continuous flow method using carbon dioxide in its supercritical state as a solvent and reagent is presented for the conversion of bioderived limonene oxide and limonene dioxide to limonene carbonates. The best-performing catalyst, tetrabutylammonium chloride, is physisorbed on mesoporous silica and used in continuous flow. The surface area and pore size distribution of the supported ionic liquid phase (SILP) catalysts are analyzed, and the long-term behavior of the SILP system is studied. The yield of the desired product is found to be 16% for limonene oxide and 17% for limonene dioxide.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2022)
Article
Engineering, Chemical
Edgar Uquiche, Sonia Millao, Jose M. del Valle
Summary: Extrusion as a densification process had a significant negative effect on all responses in SC-CO2 extracted red pepper oleoresin. Regardless of substrate pretreatment, the extraction yield and carotenoid yield were maximized at extreme conditions of 60 degrees C and 50 MPa. The extractable colour and antioxidant activity showed positive correlation, while oxidative index showed negative correlation with carotenoid content of SC-CO2 extracts.
JOURNAL OF FOOD ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Apoorva Kulkarni, Ramani Narayan
Summary: This paper discusses the synthesis of modified thermoplastic starch (MTPS) and glycol-modified polyethylene terephthalate (PETG) blends using a twin-screw extruder. The blend showed uniform dispersion of MTPS in PETG matrix, indicating compatibilization through graft copolymers generated during the extrusion process. Adding 30% MTPS reduced the carbon footprint by removing 0.5 kg CO2 from the environment/kg resin. Biodegradability studies revealed that the starch component degraded rapidly, but the PETG remained unchanged, suggesting that starch does not enhance the biodegradability of nonbiodegradable polymers.
Article
Engineering, Electrical & Electronic
A. Reguig, A. Bendaoud, A. Tilmatine, K. Medles, L. Dascalescu
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2018)
Article
Polymer Science
Marlene Desloir, Cyril Benoit, Amine Bendaoud, Pierre Alcouffe, Christian Carrot
JOURNAL OF APPLIED POLYMER SCIENCE
(2019)
Article
Engineering, Electrical & Electronic
Ahmed Bouteffaha, Abdelber Bendaoud, Abdeldjalil Reguig, Lucien Dascalescu
JOURNAL OF ELECTROSTATICS
(2019)
Article
Engineering, Electrical & Electronic
A. Zeghoudi, H. Slimani, A. Bendaoud, B. Benazza, S. Bechekir, H. Miloudi
Summary: This paper investigates the conducted emissions generated by rectifiers in an electric circuit. The study includes simulations and experimental measurements to analyze the disturbances in both high frequency common and differential modes, and low frequency harmonics and line current.
ELECTRICAL ENGINEERING & ELECTROMECHANICS
(2022)
Article
Optics
Abdelhakim Zeghoudi, Abdelber Bendaoud, Helima Slimani, Baghdadi Benazza, Houcine Miloudi, Laurent Canale
Summary: LED lamps, known for their environmental friendliness, long life, low power consumption, and high efficiency, have been widely used in lighting systems. However, the AC/DC conversion in LED lamps by rectifier diodes results in harmonic pollution and poor power quality.
Article
Engineering, Electrical & Electronic
Khadidja Saci, Sofiane Khelladi, Ahmed Bensaci, Abdechafik Hadjadj, Abdelber Bendaoud
Summary: This paper presents an optimized design method for PCB integrated common-mode chokes (CMCs) used in electromagnetic interference filters. The method employs a dedicated optimization algorithm to achieve compact and high-performance CMC designs. Through simulations and analyses, the paper highlights the significance of this optimization method in achieving low-profile devices and improving filter performance.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF ELECTRICAL ENGINEERING
(2023)
Article
Optics
Abdelhakim Zeghoudi, Abdelber Bendaoud, Amar Tilmatine, Seyfeddine Bechkir, Georges Zissis, Laurent Canale
Summary: LED represents a hot topic due to its high energy efficiency and long lifetime, but the emissions of harmonic currents are a common issue. This study used near-field scan technique and a spectrum analyzer to measure the magnetic field above LED lamps and analyzed the impact of power and lighting modes on the magnetic field.
Article
Engineering, Electrical & Electronic
H. Miloudi, M. Miloudi, A. Gourbi, M. H. Bermaki, A. Bendaoud, A. Zeghoudi
ELECTRICAL ENGINEERING & ELECTROMECHANICS
(2022)
Proceedings Paper
Green & Sustainable Science & Technology
Abdelhakim Zeghoudi, Abdelber Bendaoud, Halima Slimani, Mohamed Miloudi, Houcine Miloudi, Laurent Canale
Summary: The aim of this study is to quantify the magnetic field above the LED driver in order to identify the most intense areas of radiated emissions. By comparing the radiated emissions in different directions and varying the amplitude, the distribution of the magnetic field in the frequency domain is determined.
2022 IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2022 IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC / I&CPS EUROPE)
(2022)
Proceedings Paper
Green & Sustainable Science & Technology
Abdelhakim Zeghoudi, Abdelber Bendaoud, Sofiane Khalladi, Halima Slimani, Houcine Miloudi, Laurent Canale
Summary: This paper discusses the design of an electromagnetic interference filter for AC/DC converter PFC boost powers the LEDs lamps, aimed at reducing conducted interference in the frequency range of 150 kHz to 30 MHz to meet the CISPR 22B class standard requirements.
2022 IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2022 IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC / I&CPS EUROPE)
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Abdelhakim Zeghoudi, Abdelber Bendaoud, Laurent Canale, Amar Tilmatine, Helima Slimani
Summary: Efficiency in electrical energy has become crucial in electrical and electronic systems, especially in lighting systems, leading to widespread use of LED lamps. However, LEDs as a nonlinear load result in high harmonic current and low power factor, affecting power quality. Research comparing different topologies of Passive Power Factor Corrector (PPFC) and Active Power Factor Corrector (APFC) has been intensified to address these issues.
2021 21ST IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2021 5TH IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC/I&CPS EUROPE)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Abdelhakim Zeghoudi, Abdelber Bendaoud, Laurent Canale, Amar Tilmatine, Helima Slimani
Summary: This paper focuses on the electromagnetic interference caused by LED drivers on electronic device systems, and utilizes simulation and LISN devices for measurement and evaluation.
2021 21ST IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2021 5TH IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC/I&CPS EUROPE)
(2021)
Article
Engineering, Electrical & Electronic
Mohamed Miloudi, Houcine Miloudi, Abdelber Bendaoud, Mohammed Adnan Salhi, Ahmad N. Al-Omari
ELEKTROTEHNISKI VESTNIK
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Kheira Mendaz, Abdelber Bendaoud, Houria Bounoua, Younes Mohamed
2019 6TH INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONICS ENGINEERING (ICEEE 2019)
(2019)
Article
Materials Science, Multidisciplinary
A. Bendaoud, F. Hachouf
JOURNAL OF NEW TECHNOLOGY AND MATERIALS
(2019)
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)
