Article
Polymer Science
Igor F. Pimenta, Lucas R. F. Figueiredo, Adillys M. C. Santos, Juliano E. Oliveira, Eliton S. Medeiros
Summary: The controlled release systems developed in this study utilize biodegradable polymers/copolymers to adjust the release of potassium chloride fertilizer, providing options for fast or slow release systems tailored to the needs of different crops.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Ang Shen, Jinggang Wang, Shugang Ma, Xuan Fei, Xiaoqin Zhang, Jin Zhu, Xiaoqing Liu
Summary: Polyesters with high T-g from renewable resources are crucial for expanding their application range. A series of copolyesters, PBSF, were synthesized from BHEPS, BDO, and FDCA, with increasing BHEPS content leading to higher T-g but lower M-w. PBSF-65 was identified as a promising polyester for various applications requiring high transparency and heat resistance, with specific properties suitable for baby bottles, children's toys, kitchen appliances, and beverage packaging.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Polymer Science
Yu Bei, Yufeng Ma, Fei Song, Zhimin Kou, Lihong Hu, Caiying Bo, Puyou Jia, Yonghong Zhou
Summary: Self-healing polymer materials derived from biomass resources have rapidly developed in the past 20 years, providing advantages over thermosetting materials in terms of replacing them, extending lifespan, and reducing costs, thus holding significant promise for environmental sustainability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Yue Ding, Shilin Li, Jingxi Wang, Yuanyuan Liu, Liming Dong, Xihua Du, Dan Huang, Tianhao Ai, Junhui Ji
Summary: This paper synthesized poly(butylene succinate-co-diethylene glycol succinate) (PBSD) copolymers to improve the nonenzymatic hydrolysis of poly(butylene succinate) (PBS). The results showed that the contact angle and water uptake of the copolymer increased significantly, indicating microphase separation occurred. PBSD copolymers exhibited high tensile strength, elongation at break, and decomposition temperature. The weight loss of PBSD copolymers was greater in acidic conditions compared to neutral conditions and simulated seawater. PBSD copolymers have the potential to be utilized as water degradable materials for environmental pollution control.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mateus Hofmann, Mario Garrido, Marina Machado, Joao R. Correia, Joao C. Bordado
Summary: Research on biobased thermoset resins has been overlooked compared to biobased thermoplastics. This study developed low-molecular weight macromolecules with a high bio-content, suitable for various fiber-reinforced polymer production techniques. The resulting resins exhibited comparable mechanical and thermomechanical behavior to petrochemical-based counterparts, making them greener alternatives for high-performance structural applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mengwen Yu, Santosh K. Yadav, John J. La Scala, Giuseppe R. Palmese
Summary: Benzoxazine monomers with high renewable content were synthesized using difuran diamine (DFDA). These monomers can form low viscosity liquids that have good curing and thermal stability properties when reacted with bio-based phenolic compounds and formaldehyde. The resulting polybenzoxazines have promising characteristics for applications requiring high temperature and fire resistance, and also contain high renewable content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Polymer Science
Junchao Wang, Weining Du, Zetian Zhang, Weiyao Gao, Zhengjun Li
Summary: POSS, as an organic-inorganic hybrid at a molecular level, possesses excellent mechanical properties, thermodynamic properties, dielectric properties, etc. It has been extensively used in modifying various polymers to prepare nanocomposites with enhanced comprehensive performances. The article briefly introduces the synthesis methods of POSS nanoparticles, discusses technologies for preparing biomass-based composites utilizing diverse functional POSSs, and proposes the prospects and future application directions of POSS modification technology.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Migle Lebedevaite, Vaidas Talacka, Jolita Ostrauskaite
Summary: Green chemistry and green engineering concepts were used to develop novel sustainable polymeric materials composed of biorenewable carbon content suitable for DLP 3D printing technology. The synthesized polymers exhibited high printing accuracy, good adhesion between layers, and high tensile modulus and strength, showing potential as competitive replacements for petroleum-derived polymeric materials in additive manufacturing to reduce environmental impact.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Xiao-Qiong Cheng, Wei Liu, Chun Zhang, Xiao-Cheng Chen, Shu-Qian Duan, Hai Fu
Summary: In recent years, the issue of oily sewage has had a serious impact on the environment and human health. In this study, a biodegradable poly (lactic acid) (PLA) membrane with antibacterial properties and oil-water separation function was successfully produced using the electrospinning method. The PLA membrane exhibited high oil absorption capacity and fast oil absorption rate, as well as efficient antibacterial activity against Escherichia coli.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Amala Muniandy, Choy Sin Lee, Wen Huei Lim, Mallikarjuna Rao Pichika, Kit Kay Mak
Summary: Hyperbranched poly(glycerol esteramide) (HPGEA) with biodegradable, biocompatible, and solubility enhancing properties is highly promising in drug delivery systems. Compared to commercial polymers, HPGEA exhibits lower enthalpy of fusion, making it a potential drug carrier for solid dispersion (SD) to enhance drug solubility and release rate. The safety of HPGEA and HPGEA-based SDs was confirmed through MTT assay, with IC(50) values indicating their cytotoxicity levels.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Polymer Science
Bijender Kumar, Dickens O. Agumba, Duc H. Pham, Hyun Chan Kim, Jaehwan Kim
Summary: This review article discusses the synthesis, properties, and applications of EU-based resins in coating applications, emphasizing their excellent performance and potential for development. Despite limited research, the interest in design strategies and properties of EU-based resins has been increasing due to their low cost and environmentally friendly characteristics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Shuqin Xu, Huimin Xiang, Zhuqun Wang, Xiaoli Tang, Yan Zhang, Xiaobei Zhan, Jinghua Chen
Summary: Escherichia coli K4 expressed fructosylated chondroitin (K4) which was further modified to produce chondroitin sulfate A (CSA). Conjugates of glycosaminoglycans including K4, defructosylated K4, and CSA showed linear luminescence response to concentration, with CSA-A selected for in vitro bioimaging study. CSA-A exhibited effective internalization by astrocytes with low toxicity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Chemistry, Physical
Jakub Binczak, Krzysztof Dziuba, Anna Chrobok
Summary: Lactones are a group of compounds with commercial importance due to their potential for manufacturing various derivatives and polymers. This work focuses on the synthesis of simple lactones, emphasizing methods that avoid metal catalysts and toxic solvents for potential medical applications.
Article
Polymer Science
Gleice Ellen Almeida Verginio, Thais Larissa do Amaral Montanheiro, Larissa Stieven Montagna, Juliano Marini, Fabio Roberto Passador
Summary: The study successfully prepared a new compatibilizer agent, which improved the surface adhesion between PLA and carbon nanotubes, as well as enhanced the thermal and mechanical properties of the nanocomposites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Joshua E. Herskovitz, Julie M. Goddard
Summary: This study utilized reactive extrusion for functional grafting to produce antioxidant nonmigratory active materials. The grafted materials exhibited significant increases in carboxylate density and demonstrated effective antioxidant properties, delaying more than 52% of ascorbic acid degradation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Federico Di Bisceglie, Felice Quartinello, Robert Vielnascher, Georg M. Guebitz, Alessandro Pellis
Summary: Polyurethanes are widely used synthetic polymers in Europe, and their recycling poses a major challenge for the industry. This study investigated the enzymatic hydrolysis of a polyurethane-polyester copolymer to achieve decomposition under milder conditions. The results showed that the enzyme effectively hydrolysed the polymer and reduced its molecular weight, indicating the potential for environmentally friendly recycling strategies.
Article
Chemistry, Physical
Valerio Ferrario, Anamaria Todea, Lisa Wolansky, Nicola Piovesan, Alice Guarneri, Doris Ribitsch, Georg M. Guebitz, Lucia Gardossi, Alessandro Pellis
Summary: This study successfully synthesized aliphatic oligoesters with different molecular weights and conversion rates using immobilized biocatalysts in solvent-free systems. In order to improve the reaction efficiency, two different binding modules were fused on the surface of the biocatalyst, and the fusion enzymes were immobilized on epoxy-activated beads.
Article
Chemistry, Multidisciplinary
Xin Liu, Brett Pollard, Martin G. Banwell, Li-Juan Yu, Michelle L. Coote, Michael G. Gardiner, Barbara M. A. van Vugt-Lussenburg, Bart van der Burg, Fabien L. Grasset, Elisabeth Campillo, James Sherwood, Fergal P. Byrne, Thomas J. Farmer
Summary: The bio-derived platform molecule levoglucosenone has been converted to its pseudo-enantiomer and then reduced to iso-Cyrene. A less effective synthesis of iso-Cyrene from D-glucose is also discussed. The physicochemical and toxicological properties of iso-Cyrene are compared to those of commercially available Cyrene, revealing significant differences between the two compounds.
AUSTRALIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Organic
Daniel M. Day, Thomas J. Farmer, James Sherwood, James H. Clark
Summary: This study investigates the reactivity of dimethyl itaconate as a bio-based Michael acceptor and demonstrates that the reaction order can be altered by the choice of catalyst, solvent, or the concentration of the amine reactant. Optimized protocols can suppress the isomerization of dimethyl itaconate into unreactive regioisomers.
Article
Multidisciplinary Sciences
Siqing Xu, Rong Wang, Thomas Gasser, Philippe Ciais, Josep Penuelas, Yves Balkanski, Olivier Boucher, Ivan A. Janssens, Jordi Sardans, James H. Clark, Junji Cao, Xiaofan Xing, Jianmin Chen, Lin Wang, Xu Tang, Renhe Zhang
Summary: The potential of large-scale bioenergy with carbon capture and storage (BECCS) to limit global warming within 2 degrees Celsius may be hindered by the negative effects of climate change on crop yields, which threatens food security. Early mitigation measures, preferably before 2040, are urgently needed to avoid irreversible climate change and serious food crises.
Article
Chemistry, Multidisciplinary
Yang Cao, Jie Gao, Cheng Zhang, Daniel C. W. Tsang, Jiajun Fan, James H. Clark, Gang Luo, Xiangdong Zhu, Shicheng Zhang
Summary: Efficient conversion of renewable lignin into value-added chemicals and biofuel is achieved through microwave-assisted hydrothermal liquefaction, which enables high yields of low-molecular-weight bio-oil. The study also investigates the factors influencing lignin conversion by analyzing lignin characteristics and the stability of main monomeric products.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Polymer Science
Marcell N. D. Haslewood, Thomas J. Farmer, Michael North
Summary: Biomass derivable epichlorohydrin can undergo ring-opening copolymerization with succinic or itaconic anhydride to form low molecular weight polyesters, which can be crosslinked to form insoluble resins with complementary functionalities.
JOURNAL OF POLYMER SCIENCE
(2023)
Editorial Material
Chemistry, Multidisciplinary
Weiwei Fang, Meiying Kuai, James H. Clark, Tao Tu
CHINESE CHEMICAL LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Daniel M. M. Day, Thomas J. J. Farmer, Joe Granelli, Janice H. H. Lofthouse, Julie Lynch, Con R. R. McElroy, James Sherwood, Seishi Shimizu, James H. H. Clark
Summary: Green chemistry emphasizes safety, waste reduction, and efficiency. In this study, researchers provide a spreadsheet tool that allows for the prediction and optimization of chemical reactions through the analysis of reaction kinetics, solvent effects, and solvent greenness.
Article
Chemistry, Multidisciplinary
Joseph K. Ogunjobi, Thomas J. Farmer, James H. Clark, Con Robert McElroy
Summary: The paper presents environmentally benign routes to synthesize nonionic surfactants from fatty acid esters via a three-step synthesis. The processes were highly atom efficient, affording a minimum surfactant yield of 80% with limited side reaction products. The synthesized surfactants showed potential for various industrial applications with switchable properties depending on the alkyl chain length and the ethylene oxide number in their structure.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
James H. Clark
Summary: As the demand for new and sophisticated clothes continues to grow, the fashion industry generates a significant amount of waste. However, due to the lack of a well-established recycling industry and the complexity of the products, a large portion of resources is wasted. This article explores the scale of the waste problem and the potential for waste valorization, as well as suggesting methods to improve the lifecycle of apparel.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Huixian Xu, Yanjun Li, Qin Li, Dandan Yang, Ting Li, Saimeng Jin, Liandi Zhou, Qihui Zhang, James H. Clark
Summary: In this study, a simple, green, and environmentally friendly strategy using biochar loaded with self-emulsifying orange peel essential oil (BC/SE-OPEO) was proposed to efficiently adsorb and degrade the aromatic amine p-phenylenediamine (PPD). The results showed that the PPD removal efficiency of 50 mg BC/SE-OPEO reached 98% after 110 min at 40 °C. Mechanistic investigations revealed that reactive oxygen species (ROS) played a vital role in the degradation of PPD, which was eventually degraded to carbon dioxide and water.
Article
Green & Sustainable Science & Technology
Mengmeng Wang, Zibo Xu, Shanta Dutta, Kang Liu, Claudia Labianca, James H. Clark, Julie B. Zimmerman, Daniel C. W. Tsang
Summary: The article discusses the recycling of lithium-ion batteries (LIBs) and highlights the issues with current recycling methods. It introduces a low-energy solvometallurgy technique using biodegradable solvents. The comprehensive assessment of the technique reveals sustainability concerns and the need for further improvements.
Review
Polymer Science
Alessandro Pellis, Georg M. Guebitz, Gibson Stephen Nyanhongo
Summary: This review provides an overview of chitosan as an important raw material for various applications and discusses different sources, extraction and conversion techniques, inherent characteristics, and customization methods of chitosan. The review also explores the effects of degree of acetylation, degree of deacetylation, and molecular weight on the properties of chitosan.