GIANT最新文献

{"title":"Ecological packaging: Creating sustainable solutions with all-natural biodegradable cellulose materials","authors":"Yijia Deng ,&nbsp;Shaofeng Wu ,&nbsp;Tianxue Zhu ,&nbsp;Yukui Gou ,&nbsp;Yan Cheng ,&nbsp;Xiao Li ,&nbsp;Jianying Huang ,&nbsp;Yuekun Lai","doi":"10.1016/j.giant.2024.100269","DOIUrl":"10.1016/j.giant.2024.100269","url":null,"abstract":"<div><p>Plastics, accumulating globally as microplastics in living organisms, significantly contribute to environmental issues. Current materials like polylactic acid and commercial paper face limitations due to inadequate heat and water resistance, resulting in various practical inconveniences. This study reports a high-strength, water-resistant, recyclable, and naturally degradable pure cellulose food packaging material, which is crafted from bacterial cellulose (BC) and ethyl cellulose (EC) by a straightforward filtration and scratch coating process. The use of the EC ethanol solution eliminates the need for additional binders. Remarkably, the EC-BC pure cellulose material exhibits excellent mechanical properties (tensile strength of 195.3 ± 23.2 MPa), a stability in liquid environments (136.9 ± 24.2 MPa mechanical strength after 30 minutes of immersion in water), recyclability, natural degradability, cost-effectiveness, and non-toxicity. These attributes position binder-free hybrid designs, based on cellulose structures, as a promising solution to address environmental challenges arising from the extensive use of single-use plastics.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100269"},"PeriodicalIF":7.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000341/pdfft?md5=741c5fe84573a9668cbeb655cd6390c8&pid=1-s2.0-S2666542524000341-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140785427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Organocatalytic ring-opening polymerization of lactide by bis(thiourea) H-bonding donating cocatalysts with binaphthyl-amine framework","authors":"Xiangzhong Qian ,&nbsp;Mingqian Wang ,&nbsp;Zhiqiang Ding ,&nbsp;Xiaohui Liu ,&nbsp;Bin Wang","doi":"10.1016/j.giant.2024.100268","DOIUrl":"10.1016/j.giant.2024.100268","url":null,"abstract":"<div><p>Development of H-bonding organo-catalysts with high catalytic activity and high degree of control is significantly important for the metal-free polyesters that are potentially suitable for biomedical usage. The concomitant use of base and commercially available thiourea generally suffered from prolonged reaction time and resulted in incomplete monomer conversion in some cases. Introducing one or more (thio)urea H-bonding donating arms to the parent thiourea has been proved to be an effective method for substantially increasing the activity of thiourea H-bonding donors. Consequently, we synthesized bis-thioureas derived from binaphthyl-amine bearing different substituents and investigated their catalytic performance in ROPs of lactide in this work. The density functional theory (DFT) calculations suggested that the “activated-thiourea” mode is more preferred for the bis(thiourea) containing binaphthyl-amine framework. The bis(thiourea)/base binary systems could effectively promote the LA polymerization using benzyl alcohol as initiator. The polymerization rates and the degree of control over the polymerization are highly dependent on the structures of the bis(thiourea) and base. Bis(thiourea)/1,5,7-triazabicyclo[4.4.0]dec‑5-ene pairs exhibited highest catalytic activity compared to other bis(thiourea)/base pairs, and the turnover frequency is high up to 1980 h^–1 at 75 °C. In addition, the bulky hindrance and axial chirality of the binaphthyl-amine framework could enable stereoselective ROP of <em>rac</em>-LA to produce isotactic-rich and crystalline PLAs at relatively low temperature (0 °C). Mechanistic studies indicated that both enantiomorphic site control (ESC) and chain end control (CEC) concurrently occurred in the <em>rac</em>-LA polymerization catalyzed by bis(thiourea)/base binary systems. This work will inspire future design of H-bonding donors with high catalytic performance.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100268"},"PeriodicalIF":7.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266654252400033X/pdfft?md5=d8cb8f7666024b8ad8a85685b65d7efc&pid=1-s2.0-S266654252400033X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140785616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compatibilized polylactide/poly(pentamethylene furanoate) blends for fully bioderived packaging films with enhanced fracture toughness and UV- and O2-barrier properties","authors":"Giulia Fredi ,&nbsp;Davide Perin ,&nbsp;Carlotta Zardo ,&nbsp;Marco Rapisarda ,&nbsp;Paola Rizzarelli ,&nbsp;Michelina Soccio ,&nbsp;Nadia Lotti ,&nbsp;Andrea Dorigato","doi":"10.1016/j.giant.2024.100267","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100267","url":null,"abstract":"<div><p>Polylactide (PLA) is a promising biopolymer from renewable resources but its brittleness and poor gas barrier properties limit flexible packaging applications. Therefore, in this work PLA was blended with a biobased rubbery poly(pentamethylene furanoate) (PPeF), acting as a toughening agent, and a commercial epoxy-functionalized compatibilizer (i.e., Joncryl® ADR-4468) was added to improve the interfacial interaction. The effect of PPeF loading (1–30 wt %) on phase morphology, mechanical properties, oxygen permeability, and degradability in compost was characterized. All blends displayed a sea-island morphology with refined PPeF domains upon compatibilization. Incorporating PPeF induced major tensile ductility enhancements from 5 % strain at break for neat PLA up to 200 % for the blend with 30 wt % PPeF, accompanied by progressive stiffness and strength declines. Through the application of the essential work of fracture (EWF) approach on the prepared films, the specific essential work of fracture (w_e) was seen climbing from 6.2 to 40.0 kJ/m² with rising PPeF content, confirming its effectiveness as a toughness enhancer. PPeF contributed to increase the UV- and gas barrier properties of PLA. For example, the oxygen permeability dropped by 37 % for the blend with 30 wt % PPeF. Moreover, compost burial tests also revealed 26 % weight loss of PPeF after 60 days, proving its biodegradability. Hence, finely dispersed PPeF domains induced synergistic property improvements, making PLA/PPeF blends a promising sustainable option for flexible and biodegradable packaging.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100267"},"PeriodicalIF":7.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000328/pdfft?md5=d70bad5742d136340091a11873feb8ca&pid=1-s2.0-S2666542524000328-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of highly active photocatalytic interfaces through light field modulation and photo-deposition of Pd sites","authors":"Zheng Wang ,&nbsp;Min Liao ,&nbsp;Li Ling ,&nbsp;Meng Zhang","doi":"10.1016/j.giant.2024.100266","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100266","url":null,"abstract":"<div><p>Anchoring noble metal sites through photo-reduction is an effective way to modulate charge distribution on photocatalytic interfaces, thereby enhancing photocatalytic performance. The irradiation field on the exposed surfaces of photocatalysts has an important influence on the morphology and distribution of noble metal sites. However, non-uniform light field derived from the scattering effects of particle-form photocatalysts hinders the well-distributed photo-deposition of noble metal sites. To address this challenge, we proposed a photo-deposition method utilizing the optical fiber coated with photocatalysts. TiO₂ nanorod (NR) array was coated on the optical fiber to achieve a well-distributed irradiation filed across the NR array. This resulted in a concentration of the irradiation field primarily within the NR array, maintaining uniformly distributed light intensities throughout. Palladium (Pd) sites dominated by nanoclusters were well distributed on TiO₂ NR array utilizing a photo-reduction method. These Pd sites functioned as electron acceptors, facilitating the effective separation and transfer of photo-generated carriers. Consequently, an highly active photocatalytic reaction interface was constructed, demonstrating the accumulation of a substantial concentration of holes and their efficient conversion into hydroxyl radicals (·OH). Notably, hydroxyl radicals with a concentration of 62.6 μM could be generated within 14.4 min. The construction of this efficient photocatalytic interface offers an optimal platform for accelerating photocatalytic reactions and enhancing photocatalytic efficiency.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100266"},"PeriodicalIF":7.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000316/pdfft?md5=431896b84a5ceaeccfa934bef5e9f450&pid=1-s2.0-S2666542524000316-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140644360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetics model of crystal nucleation and growth in supercooled water for designing ice-templating soft matter scaffold","authors":"Peizhao Li ,&nbsp;Haibao Lu ,&nbsp;Wenge Chen ,&nbsp;Wei Min Huang ,&nbsp;Yong-Qing Fu","doi":"10.1016/j.giant.2024.100265","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100265","url":null,"abstract":"<div><p>Ice-templating technology has recently attracted extensive attention to achieve programed structure-property relationships in porous soft matter scaffolds. However, there is a huge gap existed between theoretical understanding and practical applications of nucleation kinetics and growth of ice crystals in supercooled water. This paper establishes a nucleation kinetics model of crystal growth in supercooled water, for designing ice-templating soft matter scaffolds with programmable structure-property relationship. A phase transition model was firstly formulated to characterize liquid-liquid phase transition of supercooled water, based on a two-state model and free-volume theory. Effects of diffusion coefficient and density of the supercooled water on ice nucleation kinetics and crystal growth were investigated, based on the classic nucleation theory. Analytical results showed excellent agreement with experimental data, with correlation indices of <em>R</em>²=90.7 % for diffusion coefficients and <em>R</em>²=94.0 % for densities, respectively. The model predicted a nucleation rate of 31.7 m⁻³∙s⁻¹ at 200 K and peak nucleation rate and crystal growth rates appearing at 183 K and 227 K. Constitutive relationships among mechanical behaviors, ice nucleus radius, nucleation ratio, and crystallization growth rate, were developed for the ice-templating scaffolds, based on the affine model theory and verified with finite element analysis results (<em>R²</em>= 99.9 %) and experimental results (<em>R</em>² = 95.8 %). Finally, the prediction results using the proposed model were further verified using the experimental data reported in the literature. This study provides a new methodology to describe the nucleation kinetics and growth of ice crystals in supercooled water and programmable structure-property relationships in ice-templating soft matter scaffolds.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100265"},"PeriodicalIF":7.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000304/pdfft?md5=51f1b574a2177fc331ed6ce9b4f6b0d2&pid=1-s2.0-S2666542524000304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140641016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mesoscopic dynamic Monte Carlo simulations of fluctuating fluid membrane shaping in biological processes: a review","authors":"Long Li,&nbsp;Xu Huang,&nbsp;Jizeng Wang","doi":"10.1016/j.giant.2024.100263","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100263","url":null,"abstract":"<div><p>Plasma membranes not only serve as physical barriers to separate the cell or organelle from extracellular or intracellular environments, but also play important roles in many cellular processes, e.g., cell adhesion, cell migration, endocytosis as well as membrane budding, whose correct executions rely on locally highly curved membrane shaping. Mechanically, these membranes are soft fluid interfaces exhibiting extremely dynamic remodeling processes in response to mechanobiological stimulus from their surrounding complex intra/extra-membranous circumstances containing thermal fluctuations, protein binding, protein-protein interaction on the membrane surface forming protein superstructures and active cytoskeletal networks. Correlating these dynamic membrane shaping involving characteristic membrane mechanical properties with cellular functions is essential to improving fundamental understandings in cell physiology and cell biomechanics. The challenge here is to explicitly describe the dynamics of membrane remodeling under the complex biological situations. Interestingly, the developed mesoscopic Monte Carlo (MC) method has the capacity to concurrently capture the elasticity and fluidity of fluid membranes well on large time and length scales, as well as to successfully reproduce fluctuating membrane morphology as observed in experiments. In this review, we focus on this mesoscopic MC method used to depict the thermodynamics of fluctuating fluid membranes and further explore how diverse biophysical factors drive large membrane curvature generation. We also discuss the current efforts of the roles of membrane morphology on the regulation of biological processes on the basis of this mesoscopic MC method, provide the insights into the known biomechanical mechanisms of effect of membrane shape on cellular functions, and point out the potential opportunities where this mesoscopic dynamic MC method can be modified to investigate more intricate biological processes, such as membrane fusion and adhesion.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100263"},"PeriodicalIF":7.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000286/pdfft?md5=abd8024e09f86623e8307f893023316d&pid=1-s2.0-S2666542524000286-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140559147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Large-Size ultrathin mica nanosheets: Reinforcements of biobased PEF polyester","authors":"Jiheng Ding ,&nbsp;Hao Wang ,&nbsp;Hongran Zhao ,&nbsp;Shuo Shi ,&nbsp;Jing Su ,&nbsp;Qinchao Chu ,&nbsp;Bin Fang ,&nbsp;Mohammad Raza Miah ,&nbsp;Jinggang Wang ,&nbsp;Jin Zhu","doi":"10.1016/j.giant.2024.100264","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100264","url":null,"abstract":"<div><p>Due to the superior physical properties and high-level alignment of the nanoscale building blocks, assembly of high-quality two-dimensional (2D) nanosheets into macroscopic engineering structure materials can achieve many unexpected performance. Natural mica nanosheets (MNSs) are abundant and with superlative properties, showing huge prospect for engineering structural materials. However, the difficulty of the mass production with large size and high aspect ratio are the current factors that limit this. Inspired by the well-known scotch-tape exfoliation, herein we develop a gummy-tape exfoliation (GTE) method by using liquid oligomers as mediums in ball-milling process to massively produce large-size and ultrathin MNSs. As a confirmation, the obtained MNSs show a record high aspect ratio of ≈1320 and a large actual yield of ∼ 80 %. A transparent biobased aromatic polyester nanocomposite film made of such MNSs and polyethylene furandicarboxylate (PEF) matrix possesses remarkably improved mechanical, barrier properties, and UV-shielding performances at an extremely low filler loading (≤0.5 vol%), making it a novel potential engineering material for packing fields in foods, drugs, and electronic products, <em>etc</em>.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100264"},"PeriodicalIF":7.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000298/pdfft?md5=0d2ea6726427443b8254f807549a4bf3&pid=1-s2.0-S2666542524000298-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140548928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorine atom substituted aromatic polyimides: Unlocking extraordinary dielectric performance and comprehensive advantages","authors":"Weifeng Peng ,&nbsp;Huanyu Lei ,&nbsp;Bingyu Zou ,&nbsp;Luhao Qiu ,&nbsp;Yaohao Song ,&nbsp;Xiang Huang ,&nbsp;Fan Ye ,&nbsp;Feng Bao ,&nbsp;Mingjun Huang","doi":"10.1016/j.giant.2024.100262","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100262","url":null,"abstract":"<div><p>Low-dielectric polymers face prominent development challenges at high frequency. Particularly, the relationship between the high-frequency dielectric loss and polymer structures remains not clear enough. Besides, the strategies for achieving low dielectric loss usually have to scarify other important materials properties, e.g., heat resistance or dimensional stability. Herein, fluorine-containing aromatic polyimides were systematically investigated. Among them, simple fluorine atom (-F) substituted polyimides exhibit remarkable low dielectric loss at high frequency (10 GHz) as well as comprehensive advantages, including near-zero thermal expansion coefficient, extremely high thermal decomposition stability, high optical transmittance and excellent mechanical properties. The fundamental mechanisms of low dielectric loss are fully discussed. Benefiting from the unique electric effect and compact size of -F group, -F substituted polyimides display low dipolar density and strongly restricted dipolar motion, contributing to a reduced permanent dipolar polarization loss. Moreover, the concept of induced dipolar polarization was introduced to illustrate the nontrivial impact of F-substituted effect on conjugated electron cloud polarization loss in aromatic polymer system. This work not only provides valuable insights for understanding the mechanism of dielectric loss at high frequency for aromatic polymers, but also opens up broader application possibilities of polyimides in microelectronic and wireless communications industries.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100262"},"PeriodicalIF":7.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000274/pdfft?md5=f12fe99a2912ae3460cda2bd3c93df18&pid=1-s2.0-S2666542524000274-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140542799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review on PLA-based biodegradable materials for biomedical applications","authors":"Muzamil Hussain ,&nbsp;Shahzad Maqsood Khan ,&nbsp;Muhammad Shafiq ,&nbsp;Naseem Abbas","doi":"10.1016/j.giant.2024.100261","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100261","url":null,"abstract":"<div><p>Polylactic Acid (PLA) is a biodegradable polymer gaining popularity as a replacement for conventional plastics in different industrial sectors. However, PLA has inherent limitations and requires modifications to enhance its performance. This review article covers the different important aspects related to the PLA such as the synthesis route of PLA, biodegradation mechanism of PLA, properties of PLA, and applications of PLA in different sectors. The main focus of this review is to identify the different innovative copolymers, blends and composites of PLA for biomedical applications. Most important characteristics such as degradation behavior, biocompatibility and mechanical properties of these PLA-based biodegradable polymers were briefly discussed. This review indicates that the optimization of processing techniques and suitable selection of additives play an important role to achieve the desired properties of PLA. This review also discusses the issues associated to PLA-based materials for biomedical applications.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100261"},"PeriodicalIF":7.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000262/pdfft?md5=1a4b84a6cf903c05f028b53799daf19c&pid=1-s2.0-S2666542524000262-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140551009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solvent-free conversion of CO2 in carbonates through a sustainable macroporous catalyst","authors":"Sandro Dattilo ,&nbsp;Chiara Zagni ,&nbsp;Tommaso Mecca ,&nbsp;Vincenzo Patamia ,&nbsp;Giuseppe Floresta ,&nbsp;Pietro Nicotra ,&nbsp;Sabrina C. Carroccio ,&nbsp;Antonio Rescifina","doi":"10.1016/j.giant.2024.100258","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100258","url":null,"abstract":"<div><p>The novelty of this work consists of synthesizing and exploiting a heterogeneous catalyst containing ammonium chloride as part of the polymeric sponge sites for CO₂ capture. To this aim, the polymerization of 2-acryloyl(oxyethyl)trimethylammonium chloride was performed in cryo-condition, in the presence of a crosslinking agent, obtaining a lightweight macroporous freestanding material. Its efficiency in converting aromatic and aliphatic epoxides to the corresponding carbonates was successfully proved by using proton Nuclear Magnetic Resonance (¹H NMR). Remarkably, the conversion of styrene oxide (SO) to styrene carbonate (SC) reached a yield of 99 % after 24 h of reaction. The calculated yield versus the aliphatic cyclohexene oxide is 71 %. Similar results were obtained by substituting the resin counter anion with Br⁻, although the conversion kinetic was slower than the chloride. It is worth noticing that reactions took place in the mixture without adding the tetrabutylammonium bromide (TBAB), typically used as a co-catalyst to convert epoxides into carbonates. The recyclability of the as-prepared catalyst was evaluated for four reaction cycles, evidencing stable properties without significant depletion of CO₂ capture efficiency. Most importantly, the post-cleaning of the catalytic sponge is not required to be reused. Finally, the green chemistry metrics applied to the process demonstrated that our approach significantly mitigates risks and reduces environmental impact, thus elevating the overall cleanliness of our proof of concept.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"18 ","pages":"Article 100258"},"PeriodicalIF":7.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000237/pdfft?md5=30a42f121cc921ad375eece1b4b67236&pid=1-s2.0-S2666542524000237-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140545777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}