Recent Advances in Lignocellulose-Based Monomers and Their Polymerization

Pei, Fuyun; Liu, Lijuan; Zhu, Huie; Guo, Haixin

doi:10.3390/polym15040829

Cited by 10 publications

(6 citation statements)

References 93 publications

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“…There are several liquid crystal (LC) technologies and they can be based on either optical scattering or absorption. The scattering based technologies include polymer dispersed liquid crystals (PDLCs), [16][17][18][19][20][21] polymer stabilized liquid crystal (PSLC), [22][23][24][25][26][27][28][29] and polymerstabilized cholesteric textures (PSCTs). [30][31][32][33][34][35][36][37] In one state under a specific voltage condition, the liquid crystal in the window is in an optically uniform state and is transparent.…”

Section: Introductionmentioning

confidence: 99%

Smart Switchable Window with Bistability and Tunability of Transmission

Zhou,

Zhang,

Halder

et al. 2024

Advanced Optical Materials

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Windows are used everywhere, from buildings to vehicles. Smart switchable windows are highly sought‐after in order to reduce energy consumption. An ideal smart window should have two functions. First, it should be able to control privacy. Second, it should be able to control radiant energy flow. Here, a smart window is reported that possesses the two functions. The smart window is based on a dichroic dye‐doped cholesteric liquid crystal. It exhibits two stable states in the absence of applied voltage. One of them is the planar state that is optically absorbing without haze and can control radiant energy flow. The other state is the focal conic state that is optically scattering and can control privacy. Furthermore, when voltage is applied, the liquid crystal is switched to a heliconical state, where the transmittance can be tuned continuously. Thanks to its superior performance, this smart window has a big potential for applications in architectural and vehicle windows.

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Section: Introductionmentioning

confidence: 99%

Smart Switchable Window with Bistability and Tunability of Transmission

Zhou,

Zhang,

Halder

et al. 2024

Advanced Optical Materials

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“…In summary, over the last 5 years, relevant scientists or plastic experts have published significant reviews on 2,5-furandicarboxylic acid (2,5-FDCA)-based homopolyesters and their copolyesters. − However, these reviews mostly focused only on specific types or particular applications of biobased polyesters. Given the rapid improvement of 2,5-FDCA-based homopolyesters and copolyesters over the last 5 years, this review aims to provide a comprehensive overview of delegated and/or bulk 2,5-FDCA-based homopolyesters and copolyesters as alternatives to fossil-based polyesters such as PET.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Sustainable 2,5-Furandicarboxylate-Based Polyesters: Properties and Applications

Miah,

Dong,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

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Polyesters based on 2,5-furandicarboxylic acid (2,5-FDCA) have attracted attention from both academia and industry as a new class of biobased polymers for the growing era of plastics. 2,5-FDCA-based polyesters are 100% renewable, and they are an alternative to petroleum-based or terephthalic acid (TPA)-based polyesters. Moreover, scientists and plastics experts have recognized bioplastics as an eco-friendly solution to developing cost-effective renewable plastics. The growth of the bioplastics market depends on a sustainable economy, population growth, and rapid changes in different polymers. Although a variety of auxiliaries have been practically used in recent years, the production of bioplastics from 2,5-FDCA monomers by oxidation of 5-hydroxymethylfurfural (HMF) is a relatively innovative field of research. This review focuses on the properties and applications of 2,5-FDCA-based polyesters in the packaging and coating industries for producing biobased postconsumer products. The manufacturability, excellent (thermal, mechanical, and barrier) features, and applications in various fields of available 2,5-FDCAbased homo-and copolyesters are discussed. Biobased 2,5-FDCA pure homo-and copolyesters have recently progressed with exceptional properties for their counterparts petroleum-based polyesters. In particular, the mechanical performance of 2,5-FDCAbased pure homopolyesters such as poly(ethylene 2,5-furandicarboxylate) (PEF) and poly(propylene 2,5-furandicarboxylate) (PPF) has the highest tensile strength (σ b ) values of 84.07 ± 4.43 and 90 ± 6 MPa, respectively, compared with other homopolyesters. On the other hand, 2,5-FDCA-based neat copolyesters like poly(ethylene 2,5-thiophenedicarboxylate) (PETF) and poly(ethylene-co-1,4-cyclohexanedimethylene 2,5-furandicarboxylate) (PECF) had maximum tensile strength (σ b ) values of 97−98 and 59−75 MPa, respectively, compared to other copolyesters. In addition, we also compared and observed the highest Young's modulus (E) values of pure PEF (5248 ± 328 MPa) and pure PPF (2460 ± 280 MPa) homopolyesters and of neat PETF (3100−3300 MPa) and neat PECF (1740−2300 MPa) copolyesters. Furthermore, the elongation at break (ε b ) values of pure poly(decylene furandicarboxylate) (PDF) (986 ± 82%) and pure poly(butylene 2,5-furandicarboxylate) (PBF) (368 ± 43%) homopolyesters and neat poly(pentylene furandicarboxylate) (PPeF) (1050 ± 200%) and neat poly(1,4-butanediol 2,5-thiophenedicarboxylate) (PBTF) (900 ± 84%) copolyesters had the highest values compared to other pure homo-and copolyesters. Finally, the results of the barrier improvement factor (BIFp) study showed that neat PPeF copolyesters had the highest values of O 2 (227 BIFp) and CO 2 (979 BIFp) compared to other pure homo-and copolyesters.

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“…Therefore, the manufacturing of plastics consumes a high amount of non-renewable starting materials. Additionally, inadequate disposal of these materials generates plastic pollution, causing extensive financial damage every year. , In this context, sustainable sources, such as chitin, chitosan, cellulose, starch, terpenes, lactic acid, lignin, , and vegetable oils, have been subjects of research in the last years, since they can be used as a feedstock to produce biopolymers, reducing the absolute reliance on crude oil …”

Section: Introductionmentioning

confidence: 99%

Effective Lignin-Based Binders for Particle Boards

Conti Silva,

Patel,

Pazymino

et al. 2024

ACS Sustainable Resour. Manage.

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In this work, bio-based composites were prepared by transesterification of different types of lignin with tung oil followed by co-polymerization with divinylbenzene in the presence of pine wood particles. The results obtained reveal that regardless of the source of lignin used, the preparation of the composites was successful, with less than 20 wt % of unreacted material recovered after Soxhlet extraction and no residual curing detected via Differential Scanning Calorimetry (DSC). Thermogravimetric Analysis (TGA) of the composites showed that the addition of pine wood particles to the co-polymer decreased the overall thermal stability of the materials due to the faster degradation rate of cellulose and hemicelluloses in wood, in comparison to lignin. Dynamic Mechanical Analysis (DMA) showed that the glass transition temperature and the storage modulus (E’) of the materials are dependent on the source of lignin employed. The latter, when measured at room temperature, increased with the addition of wood particles, demonstrating their reinforcing effect. Commercial alkali lignin exhibited a 3.5-fold increase in E’ after the addition of wood particles smaller than 150 μm. Finally, water absorption experiments and Scanning Electron Microscopy (SEM) images suggest a good interaction between modified lignin and pine wood particles. Overall, the strategy employed for the preparation of lignin-based composites was successful for the different sources of lignin used with final properties being heavily dependent on the specific source employed.

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Recent Advances in Lignocellulose-Based Monomers and Their Polymerization

Cited by 10 publications

References 93 publications

Smart Switchable Window with Bistability and Tunability of Transmission

Smart Switchable Window with Bistability and Tunability of Transmission

Recent Progress on Sustainable 2,5-Furandicarboxylate-Based Polyesters: Properties and Applications

Effective Lignin-Based Binders for Particle Boards

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