Article
Polymer Science
Hak Yong Lee, Jin Ho Seok, Jae-Chang Lee, Won-ki Lee, Tadahisa Iwata
Summary: In this study, a series of cellulose ester-graft-polylactide copolymers were synthesized using the ionic liquid 1-ethyl-3-methylimidazolium diethylphosphate as the reaction medium. The structures and compositions of the copolymers were controlled by varying the feed ratio of carboxylic anhydride and L-lactide. The copolymers exhibited enhanced thermal stability and thermoplasticity due to the intermolecular interactions. The mechanical properties and biodegradability of the copolymers were investigated using homogeneous cast films and enzymatic degradation.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Multidisciplinary
Lukas Marcos Celada, Judith Martin, Sergey V. Dvinskikh, Peter Olsen
Summary: Biopolymers, especially cellulose, play a vital role in transitioning to a circular economy and reducing reliance on fossil fuels. However, modifying cellulose hydroxyls is a challenge due to the similarity of their chemical features with water. To address this, we developed bio-based ionic liquids that can activate cellulose without disturbing its crystalline ordering. One specific ionic liquid showed high activation in heterogeneous conditions, resulting in over 30% conversion of cellulose hydroxyls. This work opens new perspectives for cellulose derivatization while maintaining sustainability.
Article
Materials Science, Paper & Wood
Yunhao Liang, James E. Hawkins, Michael E. Ries, Peter J. Hine
Summary: This study investigated the dissolution of cotton fibres in the ionic liquid [C2mim][OAc], showing that the resulting coagulated fraction had a crystal structure predominantly of cellulose II. Despite differences in growth patterns of the coagulated fraction for three distinct fibre arrangements, all could be shifted to form master curves using Time-Temperature Superposition, with very similar activation energies determined.
Review
Materials Science, Paper & Wood
Katherine S. Lefroy, Brent S. Murray, Michael E. Ries
Summary: Microgel particles, particularly cellulose microgels, have shown promise as alternative emulsion stabilisers with environmental advantages. The ability of microgels to swell and rearrange on interfaces makes them suitable for long-term stabilization in various industries. However, challenges such as cellulose insolubility and surface activity hinder their full potential as emulsion stabilisers.
Article
Polymer Science
Zhen Xu, Qiwen Zhou, Lixiang Wang, Guangmei Xia, Xingxiang Ji, Jinming Zhang, Jun Zhang, Haq Nawaz, Jie Wang, Jianfeng Peng
Summary: Utilizing used paper cups to produce cellulose-based films with good thermal property, hydrophobicity, and mechanical strength, demonstrates their potential as packaging materials, providing a solution for recycling and valorization of waste paper cups.
Article
Engineering, Environmental
Chunhong Zhang, Jingsong Cui, Wenbo Sui, Yuning Gong, Hao Liu, Yuhui Ao, Lei Shang
Summary: This study investigates the synergistic effects of ionic liquid and nanofillers on the properties of epoxy resin, aiming to address the brittleness issues commonly associated with commercial epoxy resins. The results show that the combination of the newly synthesized ionic liquid and cellulose nanofibers significantly improves the mechanical performance, thermal properties, and transparency of the epoxy composite material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiong Peng, Li Chen, Shujun Liu, Lihua Hu, Jianwei Zhang, Aili Wang, Xiwen Yu, Zongcheng Yan
Summary: The study found that ionic liquid modified cellulose exhibited high adsorption capacity and fast adsorption rate towards p-arsanilic acid. The adsorption process was determined to be multilayer adsorption dominated by the adsorption onto active sites. Interactions between p-arsanilic acid and the adsorbent were mainly through hydrogen bonding and pi-pi interaction to form outer-sphere complexes. The role of weak forces, such as hydrogen bonding, in the adsorption process between organoarsenic and adsorbents was highlighted in this research.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Ashlee Aiello, Tyler Cosby, Julia McFarland, David P. Durkin, Paul C. Trulove
Summary: All-cellulose xerogel composites were fabricated using a three-step process, resulting in a composite material with non-porous highly crystalline cellulose I in the yarn center surrounded by mesoporous amorphous regenerated cellulose. The method allowed for controlled porosity and showed potential for the development of functional cellulosic materials.
CARBOHYDRATE POLYMERS
(2022)
Article
Green & Sustainable Science & Technology
Cynthia Adu, Chenchen Zhu, Mark Jolly, Robert M. Richardson, Stephen J. Eichhorn
Summary: The textile industry, being resource-intensive, significantly impacts global emissions and waste pollution. In response to the latest climate change pressures, this study uses paper mill sludge and ionic liquid for regenerated cellulose production, showing promising competitive properties compared to traditional methods.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Chemistry, Applied
Cynthia Hopson, M. Mar Villar-Chavero, Juan C. Dominguez, M. Virginia Alonso, Mercedes Oliet, Francisco Rodriguez
Summary: Cellulose ionogels are extensively studied for their versatile properties and wide-ranging applications. The ability to encapsulate an ionic liquid in a biodegradable matrix makes it a promising alternative to fossil fuel-derived materials. The flexibility in formulation, choice of additives, and different cellulose types allow for customization for specific applications in various fields.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Applied
Tobiasz Gabrys, Beata Fryczkowska, Dorota Binias, Czeslaw Slusarczyk, Janusz Fabia
Summary: The study demonstrates that the addition of graphene oxide can significantly improve the properties of cellulose-based composite fibers, resulting in increased crystallinity and mechanical properties, as well as good dispersion of GO throughout the composite fibers.
CARBOHYDRATE POLYMERS
(2021)
Article
Biochemistry & Molecular Biology
Jia Wei, Yan Long, Binqi Wang, Huizheng Wu, Hongshuai Gao, Yi Nie
Summary: The presence of metal ions in ionic liquids can negatively impact the properties of regenerated cellulose fiber, particularly their stress sensitivity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Materials Science, Composites
Sohail Yasin, Munir Hussain, Qiang Zheng, Yihu Song
Summary: In this study, natural rubber nanocomposites were prepared using novel fillers and modifiers. Both the fillers and ionic liquid improved the mechanical properties of the material without affecting the dispersion of the nanoparticles during processing.
COMPOSITES COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Huan Zhang, Andreea Ionita, Pilar F. Serinan, Maria Luisa Ferrer, Maria A. Rodriguez, Aitana Tamayo, Fausto Rubio Alons, Francisco del Monte, Maria C. Gutierrez
Summary: Ionic liquids and deep eutectic solvents are widely used neoteric solvents. By adding acetic acid to 1-Ethyl-3-methylimidazolium chloride, the transition from the original ionic liquid to a eutectic mixture of EMIMCl and AcOH can be promoted. The study investigated the effects of this transition on cellulose regeneration and EMIMCl recovery, and demonstrated the potential application for obtaining highly acetylated cellulose.
Article
Materials Science, Multidisciplinary
Rose J. Miller, Vanessa M. Smith, Stacy A. Love, Sarah M. Byron, David Salas-de la Cruz, Kevin M. Miller
Summary: By functionalizing cellulose with 1,2,3-triazolium groups, derivatives were obtained with observed T-g values inversely related to the size of the counteranions, indicating dependence on anion basicity and hydration for thermal and ionic conductivity properties.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)